MSL YEAR 3 FALL WEATHER DATA (LS 0 TO 90)

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This page updated 1/25/2018

On Table 1 column subjects and color codings are as follows (Note: JPL calls the first year of MSL on Mars "Year 0," the second year Year 1, and the third year "Year 2"):

Column A (Sol). The Martian day is about 39 minutes longer than the terrestrial day.

Column B is solar longitude (Ls). MSL is in the Southern Hemisphere on Mars. The landing was at Ls 150 in winter. Ls 180 begins the spring there.  Ls 270 starts summer, Ls 0 starts the fall. Ls 90 starts the winter.

Column C shows the pressure reported by the REMS Team.

Column D shows the date on Earth.

Column E shows the maximum air temperature. With respect to the freezing point, from 0° C at 1 atm pressure it will increase up to 0.01° C at 0.006 atm (which is about the average pressure on Mars as given by NASA). This is the triple point of water. At pressures below this, water will never be liquid. It will change directly between solid and gas phase (sublimation). The temperature for this phase change, the sublimation point, will decrease as the pressure is further decreased

Column F shows minimum air temperature.

Column G shows the air temperature range for each sol. On Earth temperatures can vary by 40 °C in deserts. In column G where the range is 59 °C or less yellow background coloring points that out. The National Park Service claims the world record in a diurnal temperature variation is 102 °F (57 °C) (from 46 °F (8 °C) to −56 °F (−49 °C)) in Browning, Montana (elevation 4,377 feet/1,334 meters) on January 23 to 24, 1916. There were 2 days in Montana where the temperature changed by 57 °C.

Column H shows temperature range divided by 40. This allows us to compare terrestrial deserts with Gale Crater, Mars. How much cooling occurs at night is related to the density of the atmosphere. Here we see the ratio of cooling on a Mars sol to the typical 40 °C cooling figure for Earth's deserts shown with a green background when that ratio is under 1.5. For MSL Year 1 when we altered the devisor from 40 °C  to 57 °C then 88 of the ratios were altered to 1 or less than 1, meaning that Martian air pressure is indeed likely much higher than NASA claims.

Column I shows maximum ground temperature. As with terrestrial deserts, the ground on Mars heats more during the day than the air does, and it cools more at night than the air does. In Column K when the maximum ground temperature is given by REMS is above 0°C it is shown with a red background.

Column J shows the minimum ground temperature. When it is -90 °C or colder the background is in purple. The ground temperatures are not very precise. The requirement was to measure ground brightness temperature over the range from 150 to 300 K with a resolution of 2 K and an accuracy of 10 K. 

Column K. Drop in ground temperature from day to night.

Column L shows the increase in temperature from the mast 1.5 meters above the ground down to the ground during the daylight hours. In column N anytime there is an increase in temperature of 11 °C or more this in indicated with a dark blue background.

 

Column M shows the decrease in temperature from the ground to the air at nights. If the data were valid we would expect similar heating or cooling to occur over the set distance from ground to boom. A quick survey of the data immediately shows that this was not found. In column L we see a variation in heating between 0 °C and at least 15 °C with a 54 °C anomaly on Sol 1,070. For nighttime cooling any variation from 11°C to 19°C is shown with a medium blue background. More than that is shown with a dark blue background.

Column N shows the pressure for the same Ls in MSL Year 1.

Column O shows the absolute value of the change in pressure in Pascals from the same Ls in the previous year (Column [M] - [C]).

Column P shows the original pressure for the same Ls in MSL Year 1 before JPL revised their data.

Column Q shows the Ls during Year 1.

Column R shows the UV for the sol in Year 2.

Column S shows the UV for the sol in Year 1. All sols in MSL Year 1 and Year 2 have opacity listed as “sunny” which seems dubious.

Column T shows comments, if any.

 


 

 

A

B

 C

D

E

F

G

H

I

J

 K

 L M N O P Q R S T
 

SOL

~LS

PRESSURE

Pa   

EARTH

DATE

MAX

AIR

TEMP

°C   

MIN

AIR

TEMP

°C

AIR

TEMP

RANGE

°C

AIR

TEMP

RANGE

°C/40

MAX

GROUND

TEMP °C

MIN

GROUND

TEMP °C

∆ GROUND

TEMP

DAY

TO

NIGHT

DAYTIME

CHANGE

IN TEMP 

°C AIR

TO GROUND

NIGHTTIME

CHANGE

IN TEMP

°C AIR TO

GROUND

PRESSURE

AT SAME

LS IN MSL

YEAR 2

∆ PRESSURE

YEAR 3 TO

YEAR 2 SAME

LS 

~LS year 2

PRESSURE    

YEAR 1 

BEFORE

REVISION 

UV

YR

3 

UV

YR

2

MSL YEAR 2 SOL FOR THIS LS/

COMMENTS
             

YELLOW IF <60 °C

GREEN IF<1.5

RED IF

> 0 °C

PURPLE = >-90°C OR COLDER

Yellow numbers = -80 to -89 °C,

red background = -90°C or colder drop

BLUE = >10°C

PURPLE = >10°C

   YELLOW = 
> 7 Pa)		          
  1687 359 838 5/5/2017 -11  -75  64 1.6 6  -82 -88  17 -7 853 -15 0  819 H  M. Year 1 was H.  

(1019) Last day of summer (included for reference)
  1688 0 840 5/6/2017 -13 -76 63 1.575 5 -95 -100   18 -19 832 +8 0    No revision but 832 seemed too low. H  H. Year 1 was H. (1020) First day of fall.
  1689 0 840 5/7/2017 -10 -75 65 1.625  5 -89    -94--9 15 -14 850 -10 (originally -8) 1  848 H L changed to H. Year 1 was H.  (1021)
  1690 1 840 5/8/2017 -14 -76 62 1.55   2 -81 -83 16 -5 852 -12 1  N/A H H. Year 1 was H.  (1022)
  1691 1 N/A 5/9/2017 N/A N/A N/A N/A N/A N/A N/A N/A N/A 827 N/A 2  N/A  N/A  H. Year 1 was H.  (1023)
  1692 2  820  5/10/2017  -11 -62 51 1.275  5  -64 -69 16  -2 851

 -31

(apparent error year 2)

 2   N/A H  H. Year 1 was H.   (1024)
  1693 2  840  5/11/2017  -12 -76  64 1.6  6 -82 -88 18 -6 851  -11 3 N/A  H  H. Year 1 was H.   (1025)
  1694 3 840  5/12/2017  -12  -76  64 1.6  5  -118 -123 17 -42 868 -28 (possible error year 2) 3 N/A   H

N/A (was L). Year 1 was H.   

 (1026)
  1695 3  840  5/13/2017  -13 -77 64  1.6  5  -97 -102 18  -20 N/A  N/A  4 N/A  H  N/A  and N/A (1027) 
  1696 4 841 5/14/2017  -13  -75 62  1.55   5   -85 -90 18  -10 853 -12 4  N/A  H   H. Year 1 was N/A. (1028)  
  1697 4 841 5/15/2017 -15 -77  62  1.55  3 -113 -118 18  -36 856 -15 5 N/A   H   H. Year 1 was N/A.  (1029)  
  1698 5 842 5/16/2017 -12 -77  62  1.55  4 -104 -107 16 -27 855 -13 5  N/A  H H. Year 1 was N/A.   (1030) 
  1699 5 843 5/17/2017 -12
-77  62  1.55  4 -112 -116 16  -27  856  -13 6 N/A  H H. Year 1 was N/A.   (1031) 
  1700 6 842 5/18/2017 -14 -76 62  1.55   6 -106 -112 20 -30 854 -12 6  N/A  H  H. Year 1 was N/A.    (1032) 
  1701 6 841 5/19/2017 -12 -76 64 1.6  5   -85   -90  17 -9  856  -15 7 N/A  H  H. Year 1 was N/A.    (1033) 
  1702 7 842 5/20/2017 -12 -75 63 1.575  4  -87 -91 16 -12 859 -17 7 N/A  H  H. Year 1 was N/A.    (1034) 
  1703 7 830 5/21/2017 -12 -68 56 1.4 8 -78 -86 20  -10  857 -27  8  N/A  H H. Year 1 was H. (1035)
  1704 8 844 5/22/2017 -14 -77 63  1.575   7 -86 -93 21 -9  860 -16 8  N/A   H H. Year 1 was H.  (1036)
  1705 8 850 5/23/2017 -20 -76 56  1.4  6 -86  -92 26 -10  856 -6 9 N/A   H H. Year 1 was H.  (1037)
  1706 9 845 5/24/2017 -17 -77  60 1.5  4  -106  -110 21  -29  858 -13 9 N/A   H H. Year 1 was H.  (1038)
  1707 9 860 5/26/2017 -22 -77   55 1.375 3  -105 -108 25

-28

 858  +2 9  N/A  H  H. Year 1 was H.  (1038 again) For the last Martian month the Ls from MSL Year 2 has differed from the Ls in Year 3 by one half  degree. Therefore instead of using Ls 10 data from Sol 1039 of Year 2 here, the data from Sol 1038 is repeated.  frokm f
  1708 10 846 5/27/2017 -13 -76  63  1.575   5 -87 -92  18 -11 857 -11 10  N/A   H  H. Year 1 was H.   (1039) 
  1709 10 847 5/28/2017 -14 -76   62 1.55  6 -128 -134 20  -52 858  -11  10  N/A  H  H. Year 1 was H.  (1040)  Another insane record ground temp low. Note that for Sols 1708, 1709 anf 1710, the low air temps were all -76°C, but the ground temp lows varied from -87°C to -128°C (-198.4° F) and then went back up to -86° (-122.8 F). We are asked to believe that while air temps were consistent, on Sol 1709 in 1.5 meters the temperature fell by 52°C which is 93.6 °F. See Figure 2 below.
  1710 11 848 5/29/2017  -12 -76   64 1.6 5  -86 -91 17 -10  859 -11  11 N/A  H  H. Year 1 was H.  (1041)  
  1711 11 848 5/30/2017 -13 -75  62 1.55  5  -91 -96 18 -16 859  -11  11 N/A  H  M. Year 1 was H.  (1042)   
  1712 12 849 5/31/2017 -11 -77 66 1.65  5   -108 -113 16 -31 860

-11

 

 12 N/A  H  M. Year 1 was H.  (1043)  
  1713 12 850 6/1/2017 -10 -75  65 1.625   6 -101 -107 16  -26 860  -10 12  N/A  H   M. Year 1 was H.   (1044) 
  1714 13 849 6/2/2017 -13  -77 64 1.6 6  -124 -130 19 -47 861 -12 13 N/A H   H. Year 1 was H.  (1045) 
  1715 13 851 6/3/2017 -10  -77 67 1.675   5  -119 -124 15 -42  862 -11  13 N/A  H   H. Year 1 was H.  (1046) 
  1716 14 850 6/4/2017 -10 -76 66  1.65   6  -87 -93 16  -11 863 -13 14 N/A  H   H. Year 1 was H.  (1047) 
  1717 14 851 6/5/2017 -12 -76 64 1.6 2 -94 -96 14 -18 864 -13  14  N/A   H H. Year 1 was H.  (1048)
  1718 15 852 6/6/2017 -16 -77 61 1.525  5 -111 -116 21 -34 864  -12 15  N/A  H H. Year 1 was H.   (1049)
  1719 15 853 6/7/2017 -19 -77 58 1.45 3 -113 -116  22 -36 863  -10  15   N/A  H H. Year 1 was H.   (1050)
  1720 16 853 6/8/2017 -17 -76 59 1.475  4 -92 -96  21 -16 864 -11 16 N/A  H H. Year 1 was H. (1051)
  1721 16 852 6/9/2017 -16 -76 60 1.5  4 -136 -140 20 -60 865 -13 16  N/A  H M. Year 1 was H.

(1052)

New record ground temp. low. -136 C = -212.8 F. See Figure 3.
  1722 17 854 6/10/2017 -13 -77  64 1.6 2 -122 -124  15  -45 865 -11  17 N/A  H H. Year 1 was H. (1053)
  1723 17 854 6/11/2017 -16 -76 60 1.5 2 -94 -96 18 -18 867 -13 17  N/A   H H. Year 1 was H.  (1054)
  1724 18 856 6/12/2017 -21 -77 56 1.4 5 -85 -90 26 -8  868 -12 17  N/A  H H. Year 1 was H. (1055)
  1725 18 857 6/13/2017 -18 -79 61 1.525  5 -105 -110 23 -26  868 -11 18 N/A  H H. Year 1 was H.  (1056)
  1726 19 855 6/14/2017  -17 -76  59 1.475 5  -92 -97 22 -16 867  -12  18  N/A  H  H. Year 1 was H.   (1057) 
  1727 19 855 6/15/2017 -13 -75   62 1.55  2  -92 

-94

15 

 -17 868  -13 19  N/A  H   H. Year 1 was H.  (1058) 
  1728 20 855 6/16/2017 -16 -76 60 1.5  5  -93 -98 21 -17  870 -15 19 N/A  H   H. Year 1 was H.  (1059) 
  1729 20 858 6/17/2017 -19 -76  57 1.425  4  -92  -96 23 -16 870 -12  20 N/A  H   H. Year 1 was H.  (1060) 
  1730 21 858 6/18/2017 -20 -77 57  1.425  3 -93 -96  23  -16  871 -13  20  N/A  H  H. Year 1 was H.   (1061) 
  1731 21 857 6/19/2017 -24 -78 54 1.35 6 -95 -101 30 -17  871 -14 21 N/A  H  H. Year 1 was H.   (1062) 
  1732 22 858 6/20/2017 -24 -78  54  1.35 7 -92 -99 31 -14 871  -13  21  N/A  H H. Year 1 was H.    (1063) 
  1733 22 859 6/21/2017 -21 -77 56 1.4  2 -122 -124  23   -45  871  -12 22 N/A  H H. Year 1 was H.    (1064) 
  1734 23 859 6/22/2017 -22 -78  56  1.4  1 -121 -122 23  -43 873 -14  22  N/A  H H. Year 1 was H.  (1065) 
  1735 23 861 6.23.2017 -22 -78 56  1.4  5 -133 -138 27 -55 875 -14  23 N/A  H  H. Year 1 was H.  (1066)
  1736 23 860 6/24/2017 -16 -77  61 1.525   6 -91 -97 22 -14  875 -15 23 N/A  H  M. Year 1 was H.  (1067) 
  1737 24 861 6/25/2017 -19 -78 59 1.475  5 -108 -113 24 -30 874 -13 24  N/A  H H. Year 1 was H.   (1068)
  1738 24 861 6/26/2017 -22 -78 56  1.4   4 -98 -102 26 -20 876 -15  24  N/A  H  H. Year 1 was H.   (1069) 
  1739 25 861 6/27/2017 -22 -77 55 1.375 4 -133 -137 26  -56 877 -16 25 N/A  H  H. Year 1 was H.  

(1070) See Figure 4 for topography.

Altitude for Sol 1739 = -4243 m.

 
  1740 25 861 6/28/2017 -21 -78 57  1.425  4 -86 -90 25 -8  878 -17 25  N/A  H  H. Year 1 was H.  (1071) 
  1741 26 863 6/29/2017 -18 -78 60 1.5 7 -85 -92 25 -7 879 -16  26 N/A  H  H. Year 1 was H. (1072) 
  1742 26 865 6/30/2017 -12 -77 65 1.625  7 -86 -93 19 -9 879 -14 26 N/A  H  M. Year 1 was M.   (1073) 
  1743 27 863 7/2/2017 -21 -78 57  1.425  7 -90 -97 28 -12 878 -15 27 N/A  H  H. Year 1 was M.  (1074) 
  1744 27 863 7/3/2017 -22 -78  56 1.4  7 -89 -96 29 -11 879    -16   27  N/A   H  M. Year 1 was H.   (1075) 
  1745 28 865 7/4/2017 -19 -78 59 1.475  6 -88 -94 25 -10 880 -15 28 N/A   H  M. Year 1 was M.  (1076) 
  1746 28 866 7/5/2017 -16 -76 60 1.5 9 -89 -98 25 -13 880  -14 28  N/A  H M. Year 1 was M.   (1077) Altitude on Sol 1746 = -4,241 m (sand/rock)
  1747 29 866 7/6/2017 -16 -79 63 1.575   6 -88 -94  22 -9  881 -15  29  N/A   H M. Year 1 was M.   (1078) Altitude on Sol 1747 = -4,240 m (sand)
  1748 29 867 7/7/2017 -19 -79 60  1.5  7 -89 -96 26 -10 882 -15   29   N/A  H M. Year 1 was H.    (1079) Altitude on Sol 1748 = -4,239 m (sand)
  1749 30 867 7/8/2017 -21 -76 57   1.425  6 -90 -96 27 -14 882 -15   29   N/A  M M. Year 1 was M.  (1080)
  1750 30 867 7/9/2017 -17 -77 60  1.5  4 -91 -95 21 -14 882 -15  30 N/A  M M. Year 1 was M.  (1081)
  1751 31 867 7/10/2017 -23 -78 55 1.375  6 -91 -97 29 -13 882  -15   30  N/A  H M. Year 1 was H.   (1082) Altitude on Sol 1751 = -4,238 m (rock)
  1752 31 867 7/11/2017 -16 -80 64 1.6 2 -90 -92 18 -10 883 -16 31 N/A  H M. Year 1 was H.   (1083) Altitude on Sol 1752 = -4,238 m (rock)
  1753 32 868 7/12/2017 -16 -76 60    1.5   3 -88 -91 1119q1 -12 885 -17 31  N/A  H H. Year 1 was H.  (1084)
  1754 32 870 7/13/2017 -20 -78 58 1.45  3 -85 -88  23 -7 886 -16  32 N/A  H M. Year 1 was H.  (1085) Altitude on Sol 1754 = 4,233 m below areoid
  1755 32 870 7/14/2017 -22 -77 55 1.375  3 -86 -89 25 -9 885  -15 32  N/A   H H. Year 1 was H.   (1086)
  1756 33 871 7/15/2017 -23 -78 55  1.375  4 -87 -91 27 -9  885  -14 33 N/A   H H. Year 1 was H.  

(1087)

Curiosity is about to enter conjunction (go behind the sun) for 3 weeks.
  1757 33 871 7/16/2017 -21 -78 57 1.425 2 -85 -87 23 -7 885   -14  33  N/A  H H. Year 1 was H. 

(1088) In conjunction Yr 3
  1758 34 871 7/17/2017 -22 -78 56 1.4 3 -85 -88 25 -7 885  -14  34 N/A  H   H. Year 1 was H.

(1089)
  1759 34 871 7/18/2017 -20 -77 57  1.425  4 -84 -88 24 -7  886 -15 34  N/A  H H. Year 1 was H. 

(1090)
  1760 35 872 7/19/2017  -18 -78 60 1.5 3 -85 -88  21 -7   886   -14   35  N/A  H H. Year 1 was M.  

(1091)
  1761 35  872 7/20/2017  -20  -77 57   1.425   2 -86 -88  22 -9 886    -14  35 N/A  H   H. Year 1 was M. (1092) 
  1762 36 872  7/21/2017 -20  -77 57  1.425   3  -86 -89 23 -9 887  -15 36 N/A  H  H. Year 1 was M.  (1093) 
  1763 36  873 7/22/2017  -20  -78 58 1.45   2 -86  -88 22 -8  888  -15 36 N/A  H  H. Year 1 was M.  (1094) 
  1764 37 872  7/23/2017  -18 -79 61  1.525   2  -89 --91 20 -10 888   -16 36 N/A  H 

M. Year 1 was M.  

 (1095) 
  1765 37  873  7/24/2017  -20  -77 57  1.425   2  -90 --92 22 -13  888   -15 37 N/A  H  M. Year 1 was M.   (1096) 
  1766 38   873   7/25/2017  -17 -79  62 1.55 2  -85 -87 -19 -6 889  -16 37 N/A  H  M. Year 1 was M.   (1097) 
  1767 38  874 7/26/2017  -22 -77  55 1.375   3  -86  -89 25 -9  890   -16  38 N/A  H  M. Year 1 was M.   (1098) 
  1768 39 875 7/27/2017  -22  -78 56 1.4  3  -88 --91 25 -10  891   -16 38 N/A  H  M. Year 1 was M.   (1099) 
  1769 39  875  7/28/2017  -23 -76 53 1.325   2  -91 --93 25  -15 890  -15 39 N/A  H  M. Year 1 was M.   (1100) 
  1770 39  875  7/29/2017  -19 -79  60 1.5 1 -85   -86 20 -6 891  -16 39 N/A  H  M. Year 1 was M.   (1101) 
  1771 40 876 7/30/2017  -22  -79 57  1.425  2  -89 --91 24 -10  892  -16 40 N/A  H  M. Year 1 was M.   (1102) 
  1772 40  876  7/31/2017  -20 -78  58 1.45   2  -85  -87 22 -7 893  -17 40 N/A  H  M. Year 1 was M.   (1103) 
  1773 41  876   8/1/2017  -22 -78  56 1.4  2   -88 -90 24 -10  893   -17 41 N/A  H  M. Year 1 was M.   (1104) 
  1774 41  877  8/2/2017   -18 -79 61 1.525  2   -88  --90 20 -9 892  -15 41 N/A  H  M. Year 1 was M.  

(1105) Out of conjunction in Yr 3.

Altitude likely similar to before conjunction..
  1775 42 877 8/3/2017 -22  -80 58 1.45   2   -88  -90  24  -8 893 -16 42  N/A  H  M. Year 1 was M.   (1106) 
  1776 42 878 8/4/2017 -24 -79  55 1.375    2    -86 -88  26 -7 893 -15  42  N/A  H  M. Year 1 was M.   (1107) 
  1777 43 877 8/5/2017 -22  -79 57 1.425  2  -87 -89 24  -8 895 -18 42  N/A  H  M. Year 1 was M.   (1108) 
  1778 43 877 8/6/2017 -23 -81 58 1.45 2  -87  -89  25 -6 895  -18  43  N/A  H  M. Year 1 was M.  (1109)  
  1779 44 878 8/7/2017 -23  -78 55  1.375  0 -87  -87 23 -9 895  -17 43  N/A  H  M. Year 1 was M.  (1110)  
  1780 44  879 8/9/2017  -20 -77 57  1.425   1  -88   -89  21 -11 896 -17  44  N/A  H   H. Year 1 was H.  (1111)   
  1781 45 879 8/10/2017  -22  -78 56 1.4  1  -87  -88  23  -9 895  -16 45 N/A  H   H. Year 1 was H.  (1112)   
  1782 45 878 8/11/2017 -22 -78 56  1.4   1 -87 -88   23  -9  895  -17  45  N/A  H M. Year 1 was N/A.  (1113)  
  1783 45 879 8/12/2017 -23 -79 56  1.4  0 -86 -86  23  -7 896 -17  45  N/A  H M. Year 1 was N/A.   (1114)  
  1784 46 1294 8/13/2017 -22 -80 58 1.45 0 -88 -88 22 -8 897 +397 46 N/A  H M. Year 1 was N/A.   (1115)   See Figure 5 for pressure increase anomaly.
 

1784

revised

 46 883 8/13/2017 -22 -80 58 1.45 0 -88 -88 22 -8 897 -14
46 N/A H M. Year 1 was N/A.      (1115)   Revised back to the expected curve. See Figure 5
  1785 46  881 8/14/2017  -20 -77  57  1.425   -1 -88  -87 -19  -11  898 -17  46 N/A  H  M. Year 1 was N/A.  (1116) 
  1786 47 N/A 8/15/2017 N/A N/A N/A N/A N/A N/A N/A N/A N/A 898 N/A  47  N/A  N/A  M. Year 1 was N/A.  (1117) 
  1787 47 881 8/16/2017 -26 -79 53 1.325 3 -90 -87 23 -8 898 -17  47  N/A  H  M. Year 1 was N/A.  (1118) 
  1788 48 881 8/17/2017 -21 -79 58  1.45  4 -89 -91 25 -10 898  -17   48  908 H L changed to M. Year 1 was N/A.  (1119)
  1789 48 881 8/18/2017 -19 -79 60 1.5 1 -88 -89 20 -9 900 -19 48  N/A   H M. Year 1 was N/A.  (1120)
  1790 49 882 8/19/2017 -22 -81 59 1.475  2 -88 -90  24 -7 901 -19  48  N/A   H M. Year 1 was N/A.  (1121)
  1791 49 882 8/20/2017 -23 -79  56 1.4  2 -89 -91   25 -10 901  -19   49  N/A   H M. Year 1 was N/A.  (1122)
  1792 50 883 8/21/2017 -27 -80 53 1.325 2 -90 -92  29 -10 900 -18 49   N/A  H M. Year 1 was N/A.  (1123)
  1793 50 883 8/22/2017 -22 -80 58 1.45 2 -90 -92 24 -10 900  -17  50  N/A   H  H. Year 1 was M.  (1124)
  1794 50 883 8/23/2017 -25 -80 55 1.375 2 -92 -94 27 -12 900  -17   50  N/A   H H. Year 1 was H.   (1125)
  1795 51 882 8/24/2017 -19 -81 62 1.55 2 -88 -90 21 -7 901 -19    51  N/A   H M. Year 1 was N/A  (1126)
  1796 51 883 8/25/2017 -23 -80 57 1.425  2 -88 -90  25 -8 902 -27 changed to -19    51  910 H M. Year 1 was N/A  (1127)
  1797 52 884 8/26/2017 -27 -79 52 1.3  -2 -90 -88 25 -11 902 -18 52 N/A   H M. Year 1 was N/A  (1128).  A green sphere was seen again on Sol 1797.
  1798 52 883 8/27/2017 -25 -79 54 1.35 -3 -89 -86 22 -10 902  -19  52  N/A  H  M. Year 1 was N/A    (1129)
  1799 53 883 8/28/2017  -24 -78 54  1.35  1 -90  -91  25  -12 902 -19  53  N/A   H   M. Year 1 was N/A   (1130) 
  1800 53 881 8/29/2017 -24 -80 56 1.4 -1 -87 -86 23 -7 902  -21 53  N/A  H M. Year 1 was N/A   (1131)
  1801 54 882 8/30/2017 -21 -80 59 1.475 -3 -87 -84 18  -7 902   -20 53  N/A  H H. Year 1 was M.  (1132)
  1802 54  882  8/31/2017  -26  -79  53 1.325  -3  -84  -81 23 -5 902  -20  54  N/A  H M. Year 1 was M.   (1133)
  1803 55 882  9/1/2017  -25 -78 53  1.325  -1 -91 -90 24 -13 902  -20  54  N/A  M  M. Year 1 was H.  (1134)
  1804 55 883 9/2/2017  -29 -78  49 1.225   -1  -88 -87  28 -10 901 -18 55 N/A  H M. Year 1 was M.   (1135)
  1805 55 883 9/3/2017  -27 -78  51 1.275   -2 -91  -89 25 -13  901 -18 55 N/A  H M. Year 1 was M.   (1136)
  1806 56 884 9/4/2017  -25 -80  55 1.375  -1  -89 -88 24 -9  901 -17 56 N/A  M M. Year 1 was M.   (1137) 
  1807 56 884 9/5/2017  -23 -78  55  1.375  -2  -88  -86 21 -10  901  -17  56  N/A  M  M. Year 1 was M.  (1138)
  1808 57 884 9/6/2017  -26 -79 53 1.325  -1  -89  -88  25 -10   901  -17  57 N/A  H  M. Year 1 was M.  (1139) 
  1809 57

889

 9/7/2017  -29 -80 51 1.275  -1  -88  -87 -28  -8    901   -12 57  N/A   H   M. Year 1 was M.   (1140)  
  1810 58 883 9/8/2017  -25 -78 53  1.325   -5 -85 -82 20 -7 902 -19 57  N/A   H   M. Year 1 was M.   (1141)  
  1811 58 882 9/9/2017  -25 -79 54 1.35  -5  -88 -83 20 -9 902  -20 58 N/A   H   M. Year 1 was M.   (1142)  
  1812 59 882 9/10/2017 -23 -79 56 1.4  -5  -88 -83  18  -9    901   -19  58  N/A  H M. Year 1 was M.   (1143) 
  1813 59 881 9/11/2017 -27 -80 53 1.325  -8 -84 -76 19  -4 902  -21 59 N/A  H M. Year 1 was M.   (1144)  
  1814 59 881  9/12/2017  -26 -80 54 1.35 -9 -86 -77 17 -6 903 -26 revised to -22 59  907 H  M. Year 1 was M.  (1145)  
  1815 60 881  9/13/2017   -29 -81 52 1.3  -11 -86  -75 18 -5 902   -21  60  N/A  H  M. Year 1 was M.   (1146)
  1816 60  882 9/15/2017   -30 -82  52   1.3   -12 -87 -75  18 -5  901   -19 60  N/A  M M. Year 1 was N/A.   (1147)
  1817 61 882 9/16/2017 -29 -80 51 1.275  -12  -85 -73  17 -5  901   -19  61 N/A  M M. Year 1 was N/A.  (1148)
  1818 61  881  9/17/2017   -25 -81 55 1.375  -12  -87 -75  13 -6  902   -21 61 N/A  M M. Year 1 was N/A.  (1149)
  1819 62 880  9/18/2017  -28 -82 54 1.35  -12   -86 -76 16 -4 902   -22 62 N/A  H  M. Year 1 was N/A.  (1150)
  1820 62  881  9/19/2017 -29 -79 50 1.25  -10 -87 -77 19 -8 902  -21 62 

N/A

 M M. Year 1 was N/A.   (1151)
  1821 63 882  9/20/2017 -29 -81 52 1.3   -11 -83 -72 18 -2 901 -19 62  N/A  M M. Year 1 was N/A.   (1152)
  1822 63 881  9/21/2017 -27 -78 51 1.275  -10 -86 -76 17 -8  900 -19  63 N/A  M M. Year 1 was N/A.   (1153)
  1823 64 879 9/22/2017 -28 -80 52  1.3  -11  -89 -78  17  -9 900  -21  63  N/A  H  M. Year 1 was N/A.  (1154) 
  1824 64 879 9/23/2017 -28 -80 52   1.3  -9 -85 -76  19 -5 900  -21  64  N/A  H  M. Year 1 was M.  (1155) 
  1825 64 878 9/24/2017 -27 -80 53 1.325    -11   -86  -75 16 -6 900  -22 64  N/A  M  M. Year 1 was M.  (1156) 
  1826 65 878 9/25/2017 -26 -80 54 1.35  -10 -86 -75  16 -6  900   -22  65   N/A  H    M. Year 1 was M. (1157)  
  1827 65 879 9/26/2017 -28 -80  52  1.3  -12    -87 -75  16  -7 898 -19 65  N/A   H   M. Year 1 was M.  (1158)  
  1828 66 878 9/27/2017 -27 -80 53  1.325  -7 -85 -78 20 -5  898  -20 66  N/A  H M. Year 1 was M.   (1159) 
  1829 66 877 9/28/2017 -29 -78 49 1.225  -5 -84 -79 24 -6 899

-22 (300 without revision)

 66 1177 H  M. Year 1 was M. 

(1160)  

 
  1830 67 877 9/29/2017 -23 -80  57 1.425   -9 -85  -76 14 -5   898   -21 (323 without revision)  66  1200 H  M. Year 1 was M.   (1161)   Altitude for Sol 1830 = 4,184 meters below areoid. Back at Sol 1161 the altitude was 4,432 meters below areoid. It has thus climbed 248 meters in a Martian year.
  1831 67 876 9/30/2017  -26 -80  54 1.35  -9 -86  -77 17 -6 897 -21  67 N/A   H  M. Year 1 was M. (1162)   
  1832 68 875 10/1/2017 -30 -84 54 1.35 -9 -85 -76 21 -1 896 -21  67  N/A  H   M. Year 1 was M. (1163)
  1833 68 875 10/2/2017 -30 -81 51 1.275 -11 -86 -75 19 -5 896 -21  68 N/A  H  M. Year 1 was M.  (1164)
  1834 68 875 10/3/2017 -25 -80 55 1.375  -10 -86 -76 15 -6 897  -22 68  N/A  H M. Year 1 was M.  (1165)
  1835 69 873 10/4/2017 -31 -80 49 1.225   -15 -85 -70 16 -5  895 -22 69  N/A  H M. Year 1 was M.  (1166)
  1836 69 873 10/5/2017 -29  -81 52 1.3  -14 -85  -71 15  -4 894 -21 69   N/A  H M. Year 1 was M.   (1167)
  1837 70 872 10/6/2017 -28 -81 53 1.325  -11 -84  -73 17 -3 894  -22  70  N/A  H M. Year 1 was M.   (1168)
  1838 70 872 10/7/2017 -27 -79 52  1.3  -10  -84 -74 17 -5  894  -22  70  N/A  H H. Year 1 was M.   (1169)
  1839 71 872 10/8/2017 -30 -80 50 1.25  -10 -103 -93 20 -23 893 -21  71  N/A  H H. Year 1 was M.   (1170) Low ground temperature is unusally low. See Figure 6.
  1840 71 871 10/9/2017 -29 -77 48 1.2  -16 -124 -113 13 -47 892 -21  71  N/A  H H. Year 1 was M.   (1171) Low ground temperature is extremely low. See Figure 6.
  1841 72 870 10/10/2017 -32 -77 45 1.125 -15 -104 -89 17 -27 892  -22  71   N/A   H  H. Year 1 was M.  (1172) Low ground temperature is unusally low. 
  1842 72 869 10/11/2017 -27 -79  52  1.3  -11 -86 -75 16 -7   892   -23 72  N/A   H  M. Year 1 was M.  (1173) 
  1843 72 869 10/12/2017 -29  -80 51 1.275  -11  -84  -73 18 -4 891 -22   72  N/A   H  M. Year 1 was M.  (1174)  
  1844 73 869 10/13/2017 -28 -81 53 1.325  -10  -87 -77 18  -6 890 -21  73 N/A   H M. Year 1 was M.  (1175)  
  1845 73

866

 10/14/2017 -29  -80 51 1.275   -8 -87  -79 21 -7  890  -24 73 N/A   H  M. Year 1 was M.   (1176)   
  1846 73 868 10/15/2017 -30  -80  50  1.25 -15 -88 -73  15 -8 888 -20 74  N/A    H M. Year 1 was M.   (1177) 
  1847 74 866 10/16/2017 -30  -80   50   1.25  -15  -88 -73  15  -8 888 -22 74 N/A   H  M. Year 1 was M.   (1178) 
  1848 75 865 10/17/2017 -28 -80 52  1.3   -15 -86 -71 13 -6 887 -22  75  N/A   H M. Year 1 was M.   (1179)
  1849 75 864 10/18/2017 -24 -80  56 1.4 -10 -85 -75 14 -5 886 -22  75  N/A  H  M. Year 1 was M.   (1180) 
  1850 76 864 10/19/2017 -30  -80  50  1.25   -8  -85  -77 22 -5  885 -21 75  N/A   H  M. Year 1 was M.   (1181)  
  1851 76 864 10/20/2017 -30 -87 57 1.425  -14 -85  -71 16 +2 884 -20 76 N/A   H  M. Year 1 was M.   (1182)  Note night ground temperature warmer than night air temperature.
  1852 77 863 10/22/2017 -31 -80  49 1.225    -12 -85  -73 19 -5  883 -20 76 N/A   H  M. Year 1 was M.   (1183)  
  1853 77 862 10/23/2017 -32 -80 48 1.2  -14 -85 -71  18 -5  882 -20  77  N/A  M  M. Year 1 was M.  (1184)
  1854 77 861 10/24/2017 -26  -80  54 1.35  -12  -84 -72 14 -4 881 -20  77  N/A M H. Year 1 was M.    (1185)
  1855 78 861 10/25/2017 -32 -78 46 1.15  

-61

 -82 -21  -29 +17 881  -20  78 N/A  M  H. Year 1 was M.    (1186) The low of -61 is like an error. This is more likely the low in Fahrenhet than Celsius.
  1856 78 859 10/26/2017 -28 -80  52 1.3  -16 -76 -60 12 +4 881  -22 78  N/A  H M. Year 1 was M.    (1187) 
  1857 79 858 10/27/2017 -30 -80 50 1.25 -13 -84 -71 17 -4  881  -23 79  N/A  H M. Year 1 was M.    (1188)
  1858 79 857 10/28/2017 -28 -81 53 1.325 -13 -85 -72 15 -4 879 -22  79  N/A  H M. Year 1 was M.    (1189)
  1859 80 857 10/29/2017 -30  -79 49  1.225   -13  -85  -72  17 -6 877 -20 79  N/A  H  H. Year 1 was M.   (1190) 
  1860 80 857 10/30/2017 -31  -80 49  1.225   -12 -84  -72   19 -4  876 -19   80 N/A  H  H. Year 1 was M.   (1191) 
  1861 81 855 10/31/2017 -29 -79  50  1.25  -13  -85  -72  16 -6 875 -20  80 N/A  H  H. Year 1 was M.   (1192) 
  1862 81 854 11/1/2017 -31 -81  50  1.25  -13  -85  -72  18 -4  875 -21 81  N/A  H  M. Year 1 was M.    (1193)
  1863 81 853 11/2/2017 -30 -80 50   1.25  -13 -86 -73 17  -6  873 -20   81  N/A  M M. Year 1 was M.  (1194)
  1864 82 852 11/3/2017 -22 -82 60 1.5 -11 -83 -72  11 -1 871 -19 82 N/A  H M. Year 1 was M.  (1195)
  1865 82 852 11/4/2017 -31 -80   49   1.225   -13 -91 -78 18  -11 871 -19  82 N/A  H M. Year 1 was H.  (1196)
  1866 83 850 11/5/2017 -28 -80 52 1.3   -12 -98 -86 16 -18 869 -19  83 N/A  H M. Year 1 was M.  (1197)
  1867 84 848 11/6/2017 -24 -78 54 1.35  -9 -83 -74 15 -5 868 -20 83 N/A  H M changed from L. Year 1 was M.   (1198)
  1868 84 848 11/7/2017 -24 -80 56 1.4 -10 -87 -77 14 -7 868 -20  84 N/A  H M changed from L. Year 1 was M.   (1199)
  1869 84 846 11/8/2017 -24 -81 57 1.425  -9 -87 -78 15 -6 866 -20  84  N/A  H  M changed from L. Year 1 was M.   (1200) 
  1870 85 845 11/9/2017 -29 -81 52 1.3  -10 -87 -77 19 -6  866 -21 84  N/A  H  M. Year 1 was M.   (1201) 
  1871 85 844 11/10/2017 -30 -80 50 1.25 -5 -87 -82 25 -7 864 -20 85  N/A  H M. Year 1 was M.   (1202)
  1872 86 843 11/11/2017 -29 -79 50  1.25  -4 -84 -80 25  -5  863 -20  85  N/A   H M. Year 1 was M.   (1203)
 

1873

 

 86 842 11/12/2017 -25 -79  54 1.35   -5  -85 -80  20 -6 862 -20  86 N/A   H M. Year 1 was M.  

(1204)

Elevation Sol 1873 = -4,168 meters = 249 meters higher than previous Martian year (Elevation Sol 1204 was -4,417 meter)
  1874 86 840 11/13/2017 -29  -80  51 1.275  -5  -84  -79 24 -4 861 -21 86 N/A   H M. Year 1 was M.   (1205)
  1875 87 839 11/14/2017  -23 -79  56 1.4 -5  -84   -79 18 -5  859 -20   87  N/A  H  M. Year 1 was M.    (1206) 
  1876 87  838 11/15/2017  -29 -79  50  1.25 -5  -84   -79 24  -5  858 -20  87  N/A  H  M. Year 1 was M.    (1207) 
  1877 88 837 11/16/2017 -30 -79 49 1.225   -7 -84   -77 23  -5  857 -20  88  N/A H  M. Year 1 was M.   (1208)
  1878 88 835 11/17/2017 -29 -79 50 1.25
  		 -7 -84 -77  22 -5  855 -20  88  N/A  M M. Year 1 was M.    (1209)
  1879 89 842 11/18/2017 -31 -79 48 1.2  -9 -83 -74 22  -4 854 -12 88  N/A  M  M. Year 1 was M.   (1210)
  1880 89 831 11/19/2017 -30 -79 49 1.225  -7 -83 -76 23  -4  853 -22  89  N/A  M M. Year 1 was M  (1211)
 

1881

Winter

begins

 90 832 11/20/2017 -29 -79 50 1.25 -8 -83 -75 21 -4 851 -19 89  N/A  M M. Year 1 was M  (1212) 
 

SOL

 ~LS

PRESSURE Pa  

 EARTH DATE 

MAX

AIR

TEMP

°C 

 

MIN

AIR

TEMP

°C

 

AIR

TEMP

RANGE

°C

 

AIR

TEMP

RANGE

°C/40

 

MAX

GROUND

TEMP °C

 

MIN

GROUND

TEMP °C

 

∆ GROUND

TEMP

DAY

TO

NIGHT

 

DAYTIME

CHANGE

IN TEMP 

°C AIR

TO GROUND

 

NIGHTTIME

CHANGE

IN TEMP

°C AIR TO

GROUND

 PRESSURE AT SAME   LS IN MSL  YEAR 2
 ∆ PRESSURE YEAR  2 TO YEAR 3 SAME LS  ~LS Year 1

PRESSURE YEAR 1 BEFORE REVISION 

 		 UV YR 3

UV YR   2(1011)

 

 

Figure 2 - New insane low ground temperature for MSL Sol 1,709.

 

Figure 3 - New record low of -136 degrees F on MSL Sol 1721.

 

Figure 4 - Topography for Sol 1739.

 

Figure 5 - Sol 1784's pressure is 147.2% of Sol 1783's pressure.

 

Figure 6 - After Sol 1838 ground temperature lows again dropped greatly without corresponding drops in air temperature lows.

 

 CLOUDS OBSERVED FROM CURIOSITY ON SOL 1758 (JULY 17, 27). These images were found at https://mars.nasa.gov/resources/8866/.

Wispy clouds float across the Martian sky in this accelerated sequence of enhanced images taken on July 17, 2017, by the Navcam on NASA's Curiosity Mars rover.

August 9, 2017

Wispy clouds float across the Martian sky in this accelerated sequence of enhanced images from NASA's Curiosity Mars rover.

The rover's Navigation Camera (Navcam) took these eight images over a span of four minutes early in the morning of the mission's 1,758th Martian day, or sol (July 17, 2017), aiming nearly straight overhead. They have been processed by first making a "flat field' adjustment for known differences in sensitivity among pixels and correcting for camera artifacts due to light reflecting within the camera, and then generating an "average" of all the frames and subtracting that average from each frame. This subtraction results in emphasizing any changes due to movement or lighting. The clouds are also visible, though fainter, in a raw image sequence from these same observations. On the same Martian morning, Curiosity also observed clouds near the southern horizon.

The clouds resemble Earth's cirrus clouds, which are ice crystals at high altitudes. These Martian clouds are likely composed of crystals of water ice that condense onto dust grains in the cold Martian atmosphere. Cirrus wisps appear as ice crystals fall and evaporate in patterns known as "fall streaks" or "mare's tails." Such patterns have been seen before at high latitudes on Mars, for instance by the Phoenix Mars Lander in 2008, and seasonally nearer the equator, for instance by the Opportunity rover. However, Curiosity has not previously observed such clouds so clearly visible from the rover's study area about five degrees south of the equator.

The Hubble Space Telescope and spacecraft orbiting Mars have observed a band of clouds to appear near the Martian equator around the time of the Martian year when the planet is farthest from the Sun. With a more elliptical orbit than Earth's, Mars experiences more annual variation than Earth in its distance from the Sun. The most distant point in an orbit around the Sun is called the aphelion. The near-equatorial Martian cloud pattern observed at that time of year is called the "aphelion cloud belt." These new images from Curiosity were taken about two months before aphelion, but the morning clouds observed may be an early stage of the aphelion cloud belt.

More information about Curiosity is online at http://www.nasa.gov/msl and http://mars.nasa.gov/msl/.

Credit

NASA/JPL-Caltech/York University