Table 1
Chronological observation number, observation starting date, total observation time, cleaned exposure time, Chandra observation identification, satellite pointing in galactic coordinates (Sgr A⋆ is at (l,b) = (359.944°, − 0.046°)).
| N | Date | Time | Exposure | Obs. ID | Pointing |
| (ks) | (ks) | (l,b) | |||
|
|
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| 1 | 1999 Sep. 21 | 46.5 | 45.0 | 242 | Sgr A⋆ |
|
|
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| 2 | 2000 Jul. 07 | 49.4 | 46.8 | 945 | (0.141, –0.097) |
| 3 | 2000 Oct. 26 | 50.0 | 11.4 | 1561 | Sgr A⋆ |
|
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| 4 | 2001 Jul. 18 | 11.8 | 11.5 | 2273 | (0.195, –0.195) |
| 5 | 2001 Jul. 18 | 11.8 | 11.3 | 2276 | (0.195, 0.000) |
| 6 | 2001 Jul. 18 | 10.8 | 10.5 | 2282 | (0.000, –0.195) |
| 7 | 2001 Jul. 18 | 10.8 | 10.5 | 2284 | (360.000, 0.000) |
|
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| 12 | 2002 May 22 | 38.5 | 29.7 | 2943 | Sgr A⋆ |
| 8 | 2002 Feb. 19 | 12.5 | 12.4 | 2951 | Sgr A⋆ |
| 9 | 2002 Mar. 23 | 12.0 | 11.4 | 2952 | Sgr A⋆ |
| 10 | 2002 Apr. 19 | 11.9 | 10.2 | 2953 | Sgr A⋆ |
| 11 | 2002 May 07 | 12.6 | 12.0 | 2954 | Sgr A⋆ |
| 14 | 2002 May 25 | 168.9 | 160.7 | 3392 | Sgr A⋆ |
| 15 | 2002 May 28 | 160.1 | 156.6 | 3393 | Sgr A⋆ |
| 13 | 2002 May 24 | 38.5 | 33.9 | 3663 | Sgr A⋆ |
| 16 | 2002 Jun. 03 | 91.1 | 89.3 | 3665 | Sgr A⋆ |
|
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| 17 | 2003 Jun. 19 | 25.1 | 24.7 | 3549 | Sgr A⋆ |
|
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| 18 | 2004 Jun. 09 | 99.8 | 97.0 | 4500 | (0.122, 0.019) |
| 19 | 2004 Jul. 05 | 50.1 | 49.3 | 4683 | Sgr A⋆ |
| 20 | 2004 Jul. 06 | 50.1 | 49.0 | 4684 | Sgr A⋆ |
| 21 | 2004 Aug. 28 | 5.2 | 4.9 | 5360 | Sgr A⋆ |
|
|
|||||
| 23 | 2005 Jul. 24 | 49.4 | 48.3 | 5950 | Sgr A⋆ |
| 24 | 2005 Jul. 27 | 46.4 | 44.6 | 5951 | Sgr A⋆ |
| 25 | 2005 Jul. 29 | 46.3 | 44.3 | 5952 | Sgr A⋆ |
| 26 | 2005 Jul. 30 | 46.0 | 35.9 | 5953 | Sgr A⋆ |
| 27 | 2005 Aug. 01 | 18.3 | 16.7 | 5954 | Sgr A⋆ |
| 22 | 2005 Feb. 27 | 4.9 | 4.6 | 6113 | Sgr A⋆ |
|
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| 32 | 2006 Jul. 17 | 30.2 | 29.3 | 6363 | Sgr A⋆ |
| 28 | 2006 Apr. 11 | 4.6 | 2.5 | 6639 | Sgr A⋆ |
| 29 | 2006 May 03 | 5.2 | 4.8 | 6640 | Sgr A⋆ |
| 30 | 2006 Jun. 01 | 5.1 | 4.9 | 6641 | Sgr A⋆ |
| 31 | 2006 Jul. 04 | 5.2 | 5.0 | 6642 | Sgr A⋆ |
| 33 | 2006 Jul. 30 | 5.1 | 4.9 | 6643 | Sgr A⋆ |
| 34 | 2006 Aug. 22 | 5.1 | 4.6 | 6644 | Sgr A⋆ |
| 35 | 2006 Sep. 25 | 5.2 | 4.2 | 6645 | Sgr A⋆ |
| 36 | 2006 Oct. 29 | 5.2 | 4.3 | 6646 | Sgr A⋆ |
|
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| 37 | 2007 Feb. 14 | 38.7 | 38.0 | 7048 | (0.184, –0.199) |
| 38 | 2007 Feb. 11 | 5.2 | 4.8 | 7554 | Sgr A⋆ |
| 39 | 2007 Mar. 25 | 5.2 | 4.9 | 7555 | Sgr A⋆ |
| 40 | 2007 May 17 | 5.0 | 4.8 | 7556 | Sgr A⋆ |
| 41 | 2007 Jul. 20 | 5.1 | 4.7 | 7557 | Sgr A⋆ |
| 42 | 2007 Sep. 02 | 5.0 | 4.7 | 7558 | Sgr A⋆ |
| 43 | 2007 Oct. 26 | 5.1 | 4.9 | 7559 | Sgr A⋆ |
|
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| 44 | 2008 May 05 | 28.0 | 27.5 | 9169 | Sgr A⋆ |
| 45 | 2008 May 06 | 27.2 | 26.4 | 9170 | Sgr A⋆ |
| 46 | 2008 May 10 | 28.0 | 27.5 | 9171 | Sgr A⋆ |
| 47 | 2008 May 11 | 27.8 | 27.3 | 9172 | Sgr A⋆ |
| 49 | 2008 Jul. 26 | 28.1 | 27.4 | 9173 | Sgr A⋆ |
| 48 | 2008 Jul. 25 | 29.2 | 28.0 | 9174 | Sgr A⋆ |
|
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| 50 | 2009 May 18 | 114.0 | 110.6 | 10 556 | Sgr A⋆ |
|
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| 51 | 2010 May 13 | 80.0 | 78.5 | 11 843 | Sgr A⋆ |
|
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| 53 | 2011 Jul. 21 | 59.3 | 56.1 | 12 949 | (0.013, –0.088) |
| 54 | 2011 Jul. 29 | 67.1 | 64.8 | 13 438 | (0.013, –0.088) |
| 52 | 2011 Jul. 19 | 31.9 | 30.6 | 13 508 | (0.013, –0.088) |
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