Table 2: Chandra observations of the M 31 core. An asterisk denotes observations that were made within 30 days of an XMM-Newton observation; the relative times of these observations are given in the fourth column.

Obs.

Date (obs. ID) MJD Mode Exposure Separation

c1
13/10/99 (303) 51464 ACIS-I 12 ks  
c2 30/11/99 (267) 51512 HRC-I 1.3 ks  
c3 11/12/99 (305) 51523 ACIS-I 4.2 ks  
c4 23/12/99 (268) 51535 HRC-I 5.2 ks  
c5 27/12/99 (306) 51539 ACIS-I 4.2 ks  
c6 19/01/00 (269) 51562 HRC-I 1.2 ks  
c7 29/01/00 (307) 51572 ACIS-I 4.2 ks  
c8 13/02/00 (270) 51587 HRC-I 1.5 ks  
c9 16/02/00 (308) 51590 ACIS-I 4.1 ks  
c10 08/03/00 (271) 51611 HRC-I 2.5 ks  
c11* 26/05/00 (272) 51690 HRC-I 1.2 ks -30 days
c12* 01/06/00 (309) 51696 ACIS-S 5.2 ks -24 days
c13* 21/06/00 (273) 51716 HRC-I 1.2 ks -4 days
c14* 02/07/00 (310) 51727 ACIS-S 5.1 ks +7 days
c15 29/07/00 (311) 51754 ACIS-I 5.0 ks  
c16 18/08/00 (275) 51774 HRC-I 1.2 ks  
c17 27/08/00 (312) 51783 ACIS-I 4.7 ks  
c18 11/09/00 (276) 51798 HRC-I 1.2 ks  
c19 12/10/00 (277) 51829 HRC-I 1.2 ks  
c20 17/11/00 (278) 51865 HRC-I 1.2 ks  
c21* 31/11/00 (1912) 51879 HRC-I 47 ks -27 days
c22* 13/12/00 (1581) 51891 ACIS-I 4.5 ks -15 days
c23* 13/01/01 (1854) 51922 ACIS-S 4.8 ks +16 days
c24 01/02/01 (1569) 51941 HRC-I 1.2 ks  
c25 18/02/01 (1582) 51958 ACIS-I 4.4 ks  
c26* 10/06/01 (1570) 52070 HRC-I 1.2 ks -19 days
c27* 10/06/01 (1583) 52070 ACIS-I 5.0 ks -19 days
c28 31/08/01 (1577) 52152 ACIS-I 5.0 ks  
c29 09/11/01 (1585) 52222 ACIS-I 5.0 ks  
c30 19/11/01 (2904) 52232 HRC-I 1.2 ks  
c31* 08/01/02 (2897) 52282 ACIS-I 5.0 ks +1.5 days
c32* 16/01/02 (2905) 52290 HRC-I 1.1 ks +10 days
c33 02/06/02 (2906) 52427 HRC-I 1.2 ks  
c34 02/06/02 (2898) 52427 ACIS-I 5.0 ks  
c35 11/08/02 (4360) 52497 ACIS-I 5.0 ks  


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