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Table 1:

All observations of RX J0720.4-3125 listed in chronological order.

Obs. Id. 		Instrument/setup Counts Counts MJD Start date Effective
    (120-400 eV) (400-1000 eV)     exposure
        [days]   [ks]
rp300338n00 PSPC 5374 49 258 1993 Sep. 27 3.22
rh300508n00 HRI 1259 50 199 1996 Apr. 25 3.13
rh180100n00 HRI 1197 50 211 1996 May 7 3.57
rh300508n01 HRI 493 50 354 1996 Sep. 27 1.41
rh400884n00 HRI 13381 50 391 1996 Nov. 3 33.57
h400944n00 HRI 3054 50 924 1998 Apr. 20 3.57
3681 HRC-S/LETG 2722 51 575 2000 Feb. 1 5.40
7451 HRC-S/LETG 9392 51 576 2000 Feb. 2 26.26
3691 HRC-S/LETG 2660 51 579 2000 Feb. 4 6.12
0078 S3 EPIC-pn/FF thin 241 783 115 287 51 677 2000 May 13 58.60
S1 EPIC-MOS1/FF thin 69 623 43 977 51 677 2000 May 13 61.98
S2 EPIC-MOS2/SW thin 68 010 40 818 51 677 2000 May 13 61.99
0175 S3 EPIC-pn/FF med 103 491 55 743 51 870 2000 Nov. 21 25.65
S7 EPIC-MOS1/LW med 15 765 11 662 51 870 2000 Nov. 21 18.00
27742 ACIS-CC 13 455 15 648 52 248 2001 Dec. 4 15.01
27732 ACIS-CC 9452 11 646 52 248 2001 Dec. 5 10.61
27712 ACIS-CC 876 1553 52 250 2001 Dec. 6 1.86
27722 ACIS-CC 3537 4487 52 250 2001 Dec. 6 4.05
0533 S3 EPIC-pn/FF thin 137 951 72 150 52 585 2002 Nov. 6 28.38
S1 EPIC-MOS1/FF thin 27 987 21 892 52 585 2002 Nov. 6 29.99
S2 EPIC-MOS2/FF thin 29 169 22 192 52 585 2002 Nov. 6 29.99
0534 S3 EPIC-pn/FF thin 145 057 76 095 52 587 2002 Nov. 8 30.18
S1 EPIC-MOS1/FF thin 28 168 22 112 52 587 2002 Nov. 8 31.80
S2 EPIC-MOS2/FF thin 28 954 22 768 52 587 2002 Nov. 8 31.79
0622 U2 EPIC-pn/SW thick 123 199 94 655 52 762 2003 May 2 72.79
S5 EPIC-MOS1/FF med 21 204 18 741 52 762 2003 May 2 29.98
S3 EPIC-MOS1/FF thin 28 433 23 754 52 762 2003 May 2 33.59
S6 EPIC-MOS2/FF med 21 988 19 650 52 762 2003 May 2 29.99
S4 EPIC-MOS2/FF thin 30 901 24 413 52 762 2003 May 2 33.59
0711 S8 EPIC-pn/SW med 83 151 60 557 52 940 2003 Oct 27 24.90
S3 EPIC-MOS1/FF thin 10 841 11 937 52 940 2003 Oct. 27 13.90
S5 EPIC-MOS1/LW thin 10 547 11 769 52 940 2003 Oct. 27 15.71
S4 EPIC-MOS2/FF thin 11 649 12 392 52 940 2003 Oct. 27 13.91
S6 EPIC-MOS2/LW thin 11 943 12 382 52 940 2003 Oct. 27 15.71
46663 ACIS-CC 5606 13 094 53 010 2004 Jan. 6 10.12
46673 ACIS-CC 2678 5835 53 011 2004 Jan. 7 4.79
46683 ACIS-CC 2121 4918 53 016 2004 Jan. 11 5.16
46693 ACIS-CC 1890 4277 53 023 2004 Jan. 19 5.22
53054 HRC-S/LETG 13 275 53 062 2004 Feb. 27 35.70
0815 S1 EPIC-pn/FF thin 130 683 93 280 53 147 2004 May 22 41.30
S2 EPIC-MOS1/FF thin 35 853 41 178 53 147 2004 May 22 45.21
S3 EPIC-MOS2/FF thin 35 915 42 318 53 147 2004 May 22 45.22
46705 ACIS-CC 5723 12 329 53 221 2004 Aug. 3 10.13
46715 ACIS-CC 2778 6318 53 223 2004 Aug. 5 5.15
46725 ACIS-CC 2483 5789 53 227 2004 Aug. 9 5.12
46735 ACIS-CC 2527 6034 53 244 2004 Aug. 23 5.13
55816 HRC-S/LETG 30 998 53 393 2005 Jan. 23 68.20
0986 S3 EPIC-pn/FF thin 181 754 131 146 53 488 2005 Apr. 28 51.43
S1 EPIC-MOS1/SW thin 32 400 36 475 53 488 2005 Apr. 28 53.05
S2 EPIC-MOS2/SW thin 34 456 38 266 53 488 2005 Apr. 28 53.06
55827 HRC-S/LETG 35 777 53 523 2005 Jun. 1 70.17
63648 HRC-S/LETG 22 210 53 610 2005 Aug. 27 38.87
1060 S3 EPIC-pn/FF thin 175 481 120 913 53 636 2005 Sep. 23 51.14
S1 EPIC-MOS1/SW thin 33 710 37 070 53 636 2005 Sep. 23 52.76
S2 EPIC-MOS2/SW thin 33 977 37 706 53 636 2005 Sep. 23 52.77
63699 HRC-S/LETG 7696 53 652 2005 Oct. 8 26.26
71779 HRC-S/LETG 2532 53 653 2005 Oct. 9 8.04
1086 S3 EPIC-pn/FF thin 167 725 117 828 53 687 2005 Nov. 12 37.84
S1 EPIC-MOS1/SW thin 25 265 27 091 53 687 2005 Nov. 12 39.46
S2 EPIC-MOS2/SW thin 25 045 27 580 53 687 2005 Nov. 12 39.47
724310 HRC-S/LETG 5931 53 718 2005 Dec. 14 17.18
724410 HRC-S/LETG 4927 53 718 2005 Dec. 15 16.29
724510 HRC-S/LETG 5249 53 718 2005 Dec. 16 17.19
558410 HRC-S/LETG 5321 53 718 2005 Dec. 17 14.19
7251 HRC-S/LETG 4787 53 775 2006 Sep. 9 10.65
1181 S1 EPIC-pn/FF thin 89 015 59 524 53 877 2006 May 22 20.04
S2 EPIC-MOS1/SW thin 13 652 14 219 53 877 2006 May 22 21.66
S3 EPIC-MOS2/SW thin 15 045 15 048 53 877 2006 May 22 21.66
1265 S1 EPIC-pn/FF thin 89 852 60 883 54 044 2006 Nov. 5 20.04
S2 EPIC-MOS1/FF thin 12 414 12 296 54 044 2006 Nov. 5 21.61
S3 EPIC-MOS2/FF thin 15 291 14 653 54 044 2006 Nov. 5 21.62
1356 S1 EPIC-pn/FF thin 89 411 57 483 54 226 2007 May 5 20.04
S2 EPIC-MOS1/FF thin 16 690 16 685 54 226 2007 May 5 21.61
S3 EPIC-MOS2/FF thin 17 147 16 818 54 226 2007 May 5 21.62
1454 S1 EPIC-pn/FF thin 102 917 64 833 54 421 2007 Nov. 17 23.06
S2 EPIC-MOS1/FF thin 18 674 18 197 54 421 2007 Nov. 17 24.62
S3 EPIC-MOS2/FF thin 19 029 18 416 54 421 2007 Nov. 17 24.62
1086111 HRC-S/LETG 4240 54 851 2009 Jan 20 11.91
1070011 HRC-S/LETG 14 053 54 876 2009 Feb. 14 21.82
1700 S3 EPIC-pn/FF thin 37 085 30 806 54 913 2009 Mar. 21 10.84
U2 EPIC-MOS1/FF thin 11 481 11 876 54 912 2009 Mar. 21 17.69
U2 EPIC-MOS2/FF thin 11 936 11 556 54 912 2009 Mar. 21 17.69
1070112 HRC-S/LETG 15647 55 086 2009 Sep. 11 33.17
1792 S3 EPIC-pn/FF thin 65 407 48 105 55 096 2009 Sep. 22 17.90
S1 EPIC-MOS1/SW thin 12 524 11 919 55 096 2009 Sep. 22 19.22
S2 EPIC-MOS2/SW thin 12 724 11 993 55 096 2009 Sep. 22 19.24

Notes. Observation 7251, in italic, is not used in this work (see Sect. 3). The identifier marks the merged data sets: observations with the same tag are merged into one data set. Counts for ROSAT and Chandra HRC were not divided into soft (120-400 eV) and hard (400-1000 eV) band (see Sect. 3), hence we list the total number of counts. The count numbers for the HRC observations are comparable to those listed in KvK05, but are a factor 100 less than those listed in vK07 (probably due to missprint in vK07) although the data handling in all three works (KvK05, vK07 and this work) is comparable. The count numbers of all other observations are in good agreement. For details on ROSAT and XMM-Newton observations we refer to Cropper et al. (2004) and (Hohle et al. 2009 and Sects. 2, 3 this work), respectively.


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