AstronomyCast

Astronomy Cast

Astronomy Cast takes a fact based journey through the cosmos as it offers listeners weekly discussions on astronomical topics ranging from planets to cosmology.

Astrometric Summary

The table below shows the time spent observing minor planets for each month of the year. A night is counted as used when at least one triplet of images was acquired. In fact, no observations were taken in the months where rows are empty. Due to bad weather or other reasons. My house renovation was responsible for the big breaks in 2012/13 and 2014/2015.

Besides that I was trying to use every possible opportunity. I wasn't always successful at that. On some occasions, the full moon was used as an excuse. Or the sky was clearing up not until midnight and I was to lazy to leave the warm comfort of my bed. But these numbers show that it is possible to get 70+ nights a year for astronomical 'entertainment' even in our unfavorable central european location.

And it is evident that climate change is leading to warmer, sunnier and drier sommer months, especially in the years 2018,2019 and 2020.

A small software was used to read the fitsheader from every single image an write it to a database. SQL makes it possible to pull all kind of useful information from this archive. And because I still use my old SBIG ST8-XME in 2x2 binning mode a single FITS file is only 768 KB small. That makes the whole image archive only 200 GB in size for all 250.000 images taken from 2003 until now.

Year
Month
Session
Duration
[sec]
Total exp.
time
[sec]
Total No. of
images taken
[sec]
Nights
used 
Avg exp.
time
[s]
Eff.
[%]
Positions
sent to MPC
2004-03 29033 18300 610 2 30.0 63.03 44
2004-04 48431 35130 1211 4 29.0 72,54 18
2003-09 29
2003-10 6
2003-12 34
2004-01 16
2004-02 11
2004-03 29033 18300 610 2 30,0 63,03 44
2004-04 48431 35130 1211 4 29,0 72,54 18
2004-05 30092 27000 220 7 122,7 89,72 2
2004-06
2004-07
2004-08
2004-09 46712 34500 1155 7 29,9 73,86 14
2004-10
2004-11
2004-12 19897 15560 72 2 216,1 78,20 27
2005-01 25397 19380 323 1 60,0 76,31 14
2005-02
2005-03
2005-04 44470 38467 620 7 62,0 86,50 27
2005-05 38435 25440 424 5 60,0 66,19 21
2005-06 22525 12140 202 4 60,1 53,90 14
2005-07 24168 15500 279 4 55,6 64,13 8
2005-08 11047 3810 231 3 16,5 34,49 8
2005-09
2005-10 79105 48224 1212 9 39,8 60,96 87
2005-11 29478 15730 354 2 44,4 53,36 19
2005-12 9907 4611 258 1 17,9 46,54 16
2006-01 59021 36122 1224 7 29,5 61,20 57
2006-02
2006-03
2006-04 16680 9840 306 3 32,2 58,99 10
2006-05 4588 1940 184 3 10,5 42,28 0
2006-06
2006-07 600 600 10 1 60,0 100,00 0
2006-08 18
2006-09 55
2006-10 71909 41457 1332 8 31,1 57,65 45
2006-11 19974 9180 291 2 31,5 45,96 15
2006-12 39554 21130 669 5 31,6 53,42 33
2007-01
2007-02 7164 3900 130 1 30,0 54,44 6
2007-03 23315 15200 660 4 23,0 65,19 25
2007-04 131057 82840 3195 15 25,9 63,21 186
2007-05 58001 37201 1722 7 21,6 64,14 57
2007-06 36275 16125 805 5 20,0 44,45 44
2007-07 54979 28530 1539 6 18,5 51,89 62
2007-08 49130 28540 1240 7 23,0 58,09 48
2007-09 62220 36685 1468 6 25,0 58,96 61
2007-10 58835 36937 2048 8 18,0 62,78 81
2007-11 61
2007-12 31
2008-01 29899 23820 811 4 29,4 79,67 28
2008-02 93589 61405 2775 8 22,1 65,61 100
2008-03 16896 12110 606 3 20,0 71,67 20
2008-04
2008-05 46147 51660 2343 9 22,0 111,95 45
2008-06 25631 17510 817 4 21,4 68,32 35
2008-07 41858 28680 1467 8 19,6 68,52 51
2008-08 38521 30330 1053 3 28,8 78,74 35
2008-09 18769 15300 510 3 30,0 81,52 16
2008-10 37836 28080 936 4 30,0 74,22 67
2008-11 30958 21575 855 4 25,2 69,69 18
2008-12 86978 52522 2004 6 26,2 60,39 99
2009-01 60099 43145 2048 7 21,1 71,79 80
2009-02 44364 30660 962 3 31,9 69,11 79
2009-03 72382 46720 2451 8 19,1 64,55 106
2009-04 60838 46490 1609 11 28,9 76,42 83
2009-05 20093 13065 538 3 24,3 65,02 15
2009-06 14695 8170 312 2 26,2 55,60 19
2009-07 13520 11520 384 4 30,0 85,21 19
2009-08 76441 54435 2017 6 27,0 71,21 142
2009-09 29569 23400 840 1 27,9 79,14 146
2009-10 63163 53020 1914 6 27,7 83,94 105
2009-11 26378 22120 792 3 27,9 83,86 30
2009-12 47440 39420 1314 5 30,0 83,09 9
2010-01
2010-02
2010-03 65149 49590 1761 6 28,2 76,12 77
2010-04 81596 60770 2191 7 27,7 74,48 99
2010-05 974 795 53 1 15,0 81,62 0
2010-06 20449 15300 600 4 25,5 74,82 12
2010-07 52474 40580 1386 8 29,3 77,33 51
2010-08 49280 37305 1362 4 27,4 75,70 53
2010-09 104308 71593 2749 7 26,0 68,64 96
2010-10 170443 135415 5352 10 25,3 79,45 177
2010-11 11144 16170 539 1 30,0 145,10 15
2010-12
2011-01 16485 14925 605 2 24,7 90,54 28
2011-02
2011-03 202490 159050 5753 12 27,6 78,55 203
2011-04 135358 103695 3577 7 29,0 76,61 130
2011-05 148248 122370 4230 9 28,9 82,54 138
2011-06 15447 11430 665 2 17,2 73,99 16
2011-07 47045 35730 1493 4 23,9 75,95 52
2011-08 43563 35880 824 3 43,5 82,36 34
2011-09 78551 68790 2778 5 24,8 87,57 121
2011-10 68966 33086 751 4 44,1 47,97 97
2011-11 22692 15300 510 2 30,0 67,42 87
2011-12 6913 4980 166 1 30,0 72,04 3
2012-01 14191 11700 390 1 30,0 82,45 15
2012-02 10842 9000 300 1 30,0 83,01 9
2012-03 150300 116789 4579 8 25,5 77,70 171
2012-04 47092 37710 1297 3 29,1 80,08 26
2012-05 59063 48600 1560 4 31,2 82,29 45
2012-06 29506 23670 870 2 27,2 80,22 33
2012-07 73660 59880 1996 6 30,0 81,29 72
2012-08 19306 15300 510 1 30,0 79,25 30
2012-09
2013-11
big break
2013-12 39703 4310 251 3 17,2 10,86 3
2014-01 37244 34200 912 3 37,5 91,83 24
2014-02 9450 5400 270 1 20,0 57,14 6
2014-03 112777 81760 2923 6 28,0 72,50 107
2014-04
2015-08
big break
2015-09 45141 33040 1180 6 28,0 73,19 30
2015-10 77565 52260 1640 7 31,9 67,38 51
2015-11 41216 24910 1085 3 23,0 60,44 22
2015-12 46642 37800 1260 3 30,0 81,04 63
2016-01
2016-02 22916 14100 630 2 22,4 61,53 3
2016-03 110738 85440 2848 6 30,0 77,16 126
2016-04 100580 77220 2724 5 28,3 76,77 78
2016-05 96764 75280 2618 7 28,8 77,80 108
2016-06
2016-07 19952 16200 540 1 30,0 81,19 12
2016-08 113016 88706 3099 7 28,6 78,49 117
2016-09 135876 89126 3681 9 24,2 65,59 154
2016-10
2016-11 17918 15300 510 1 30,0 85,39 15
2016-12 17720 12900 630 1 20,5 72,80 18
2017-01
2017-02
2017-03
2017-04 27172 22500 750 2 30,0 82,81 18
2017-05 39370 33840 1051 4 32,2 85,95 34
2017-06 72093 50230 2075 7 24,2 69,67 63
2017-07
2017-08 66188 50250 1920 3 26,2 75,92 53
2017-09 95535 85140 2983 6 28,5 89,12 121
2017-10 90256 63550 2999 6 21,2 70,41 141
2017-11 33651 24870 889 1 28,0 73,91 46
2017-12
2018-01 16324 9900 390 1 25,4 60,65 13
2018-02 81384 60440 2511 4 24,1 74,27 78
2018-03
2018-04 180213 133280 4726 8 28,2 73,96 197
2018-05 116915 80875 3170 9 25,5 69,17 121
2018-06 80030 58560 2510 6 23,3 73,17 75
2018-07 143274 101960 3999 11 25,5 71,16 130
2018-08 244791 185595 6797 13 27,3 75,82 246
2018-09 191831 154847 5606 12 27,6 80,72 248
2018-10 113871 75705 3551 9 21,3 66,48 152
2018-11 30444 20850 965 3 21,6 68,49 29
2018-12
2019-01 10820 6510 327 1 19,9 60,17 9
2019-02 66407 51000 2010 4 25,4 76,80 59
2019-03 74743 43940 1668 3 26,3 58,79 59
2019-04 51891 35232 2195 3 16,1 67,90 56
2019-05 137986 113320 4728 8 24,0 82,12 131
2019-06 152677 122920 5251 12 23,4 80,51 149
2019-07 140928 97350 3741 9 26,0 69,08 143
2019-08 233815 176740 6029 11 29,3 75,59 213
2019-09 135754 94100 3871 9 24,3 69,32 132
2019-10 68843 35560 1458 4 24,4 51,65 29
2019-11 18249 13800 570 2 24,2 75,62 26
2019-12 37623 24380 1077 2 22,6 64,80 41
2020-01 32614 20652 1367 2 15,1 63,32 30
2020-02 14602 9180 490 1 18,7 62,87 16
2020-03 100008 74640 2803 6 26,6 74,63 102
2020-04 299457 219644 8370 14 26,2 73,35 255
2020-05 208693 152200 6000 12 25,4 72,93 176
2020-06 79318 60670 2157 7 28,1 76,49 65
2020-07 151522 112960 4379 9 25,8 74,55 155
2020-08 110597 80970 3339 6 24,2 73,21 51
2020-09 304617 225415 10028 13 22,5 74,00 304
2020-10 90042 68000 2113 4 32,2 75,52 51
Total
session
duration
in hrs.

2523.16
Total
exposure
time
in hrs.

1836.14
Total
number
of images
taken

249863
Total
number
of nights
used

704
Total
number
of positions
to MPC

9501