NICER observation list: Target ID 358001
- Proposal Number = 3580
- Target ID = 358001
- Target Name = 4U_1812-12
- Proposal Title = SEARCHING FOR ABSORPTION EDGES IN THE SPECTRUM OF A BRIGHT EDDINGTON-LIMITED X-RAY BURST
- PI = JEAN IN 'T ZAND
- Proposal Category = OTHER
- Cycle number = 3
- Observation Type = NOR
Abstract
Our plan is to detect for the first time with a high-sensitive instrument a thermonuclear X-ray burst from the nearby ultracompact X-ray binary 4U 1812-12, from which it is known that all bursts are Eddington-limited and have a high level of convection to dredge up heavy ashes, and search for absorption edges in the burst spectrum. As a bonus, we can search for burst oscillations for the first time in this persistent burster.
| Obsid |
RA |
DEC |
l |
b |
Start |
End |
Exposure |
Number of modules |
Status of Processing |
Date of Processing |
Public date |
| 3580010101 |
273.775 |
-12.096 |
18.03276 |
2.39875 |
58962.9696 |
58962.9843 |
1139.00000 |
52 |
VALIDATED |
58967.6 |
59096 |
| 3580010102 |
273.774 |
-12.095 |
18.03287 |
2.39925 |
58963.0339 |
58963.7586 |
14929.00000 |
52 |
VALIDATED |
58992.5 |
59097 |
| 3580010103 |
273.775 |
-12.096 |
18.03272 |
2.39828 |
58964.0520 |
58964.9838 |
25410.00000 |
52 |
VALIDATED |
58969.6 |
59098 |
| 3580010104 |
273.775 |
-12.096 |
18.03284 |
2.39879 |
58965.0870 |
58965.8870 |
20556.00000 |
52 |
VALIDATED |
58969.7 |
59099 |
| 3580010105 |
273.775 |
-12.096 |
18.03275 |
2.39841 |
58965.9925 |
58966.2736 |
7457.00000 |
52 |
VALIDATED |
58970.7 |
59100 |
| 3580010201 |
273.775 |
-12.096 |
18.03299 |
2.39843 |
59039.0654 |
59039.9986 |
7044.00000 |
52 |
VALIDATED |
59044.6 |
59173 |
| 3580010202 |
273.774 |
-12.095 |
18.03333 |
2.39950 |
59040.0339 |
59040.9669 |
20989.00000 |
52 |
VALIDATED |
59045.6 |
59174 |
| 3580010203 |
273.775 |
-12.095 |
18.03332 |
2.39850 |
59041.0145 |
59041.9894 |
21149.00000 |
52 |
VALIDATED |
59046.6 |
59175 |
| 3580010204 |
273.775 |
-12.096 |
18.03262 |
2.39834 |
59042.2389 |
59042.9676 |
15264.00000 |
52 |
VALIDATED |
59047.6 |
59176 |
| 3580010205 |
273.775 |
-12.094 |
18.03429 |
2.39913 |
59043.0044 |
59043.4688 |
9933.00000 |
52 |
VALIDATED |
59047.7 |
59177 |
| 3580010301 |
273.776 |
-12.096 |
18.03283 |
2.39756 |
59048.9571 |
59048.9653 |
466.00000 |
52 |
VALIDATED |
59053.6 |
59182 |
| 3580010302 |
273.780 |
-12.095 |
18.03590 |
2.39444 |
59058.1877 |
59058.2650 |
1803.00000 |
52 |
VALIDATED |
59062.7 |
59192 |
| 3580010303 |
273.776 |
-12.096 |
18.03301 |
2.39766 |
59068.8949 |
59068.9051 |
636.00000 |
51 |
VALIDATED |
59075.7 |
59202 |
| 3580010304 |
273.776 |
-12.097 |
18.03246 |
2.39781 |
59071.2194 |
59071.2910 |
876.00000 |
51 |
VALIDATED |
59075.8 |
59205 |
| 3580010305 |
273.775 |
-12.097 |
18.03203 |
2.39780 |
59079.1660 |
59079.3016 |
1386.00000 |
51 |
VALIDATED |
59083.7 |
59213 |
| 3580010306 |
273.776 |
-12.097 |
18.03186 |
2.39748 |
59080.6551 |
59080.6601 |
320.00000 |
51 |
VALIDATED |
59084.6 |
59214 |
| 3580010307 |
273.776 |
-12.096 |
18.03265 |
2.39758 |
59082.0081 |
59082.9792 |
5018.07033 |
51 |
VALIDATED |
59087.6 |
59216 |
| 3580010308 |
273.776 |
-12.097 |
18.03210 |
2.39750 |
59083.0989 |
59083.7581 |
4176.00000 |
51 |
VALIDATED |
59087.7 |
59217 |
| 3580010309 |
273.777 |
-12.098 |
18.03188 |
2.39549 |
59084.8447 |
59084.8503 |
0.00000 |
51 |
VALIDATED |
59088.7 |
59218 |
| 3580010310 |
273.776 |
-12.098 |
18.03133 |
2.39686 |
59086.0669 |
59086.7379 |
2381.00000 |
51 |
VALIDATED |
59090.7 |
59220 |
| 3580010311 |
273.777 |
-12.099 |
18.03132 |
2.39541 |
59087.4257 |
59087.5600 |
539.00000 |
51 |
VALIDATED |
59091.7 |
59221 |
| 3580010312 |
273.776 |
-12.097 |
18.03176 |
2.39710 |
59090.2675 |
59090.2806 |
934.00000 |
51 |
VALIDATED |
59094.6 |
59224 |
| 3580010313 |
273.776 |
-12.097 |
18.03236 |
2.39753 |
59091.7528 |
59091.7722 |
1013.00000 |
51 |
VALIDATED |
59095.7 |
59225 |
| 3580010314 |
273.777 |
-12.099 |
18.03061 |
2.39503 |
59093.2369 |
59093.2476 |
384.00000 |
51 |
VALIDATED |
59098.0 |
59227 |
| 3580010315 |
273.777 |
-12.097 |
18.03282 |
2.39600 |
59096.5984 |
59096.9294 |
2738.00000 |
52 |
VALIDATED |
59100.7 |
59230 |
| 3580010316 |
273.777 |
-12.098 |
18.03212 |
2.39607 |
59097.1748 |
59097.1783 |
1.00000 |
51 |
VALIDATED |
59101.6 |
59231 |
| 3580010317 |
273.777 |
-12.097 |
18.03311 |
2.39638 |
59098.6593 |
59098.8666 |
2207.00000 |
51 |
VALIDATED |
59102.6 |
59232 |
| 3580010318 |
273.777 |
-12.097 |
18.03295 |
2.39630 |
59100.3456 |
59100.4176 |
893.00000 |
51 |
VALIDATED |
59104.7 |
59234 |
| 3580010319 |
273.778 |
-12.100 |
18.03075 |
2.39455 |
59101.3053 |
59101.9638 |
429.00000 |
51 |
VALIDATED |
59106.6 |
59235 |
| 3580010320 |
273.777 |
-12.090 |
18.03915 |
2.39975 |
59111.4502 |
59111.4549 |
297.00000 |
51 |
VALIDATED |
59115.7 |
59245 |
| 3580010321 |
273.774 |
-12.091 |
18.03626 |
2.40175 |
59112.1581 |
59112.1613 |
209.00000 |
51 |
VALIDATED |
59116.7 |
59246 |
| 3580010322 |
273.775 |
-12.096 |
18.03290 |
2.39816 |
59116.8660 |
59116.8752 |
687.00000 |
51 |
VALIDATED |
59120.7 |
59250 |
| 3580010323 |
273.776 |
-12.096 |
18.03287 |
2.39781 |
59117.0595 |
59117.9727 |
1392.00000 |
51 |
VALIDATED |
59122.6 |
59251 |
| 3580010324 |
273.775 |
-12.096 |
18.03284 |
2.39812 |
59118.1581 |
59118.4245 |
1781.00000 |
51 |
VALIDATED |
59122.7 |
59252 |
| 3580010325 |
273.778 |
-12.092 |
18.03726 |
2.39773 |
59120.6769 |
59120.8181 |
1376.00000 |
51 |
VALIDATED |
59125.7 |
59254 |
| 3580010326 |
273.785 |
-12.094 |
18.03924 |
2.39047 |
59121.7752 |
59121.7838 |
0.00000 |
51 |
VALIDATED |
59125.8 |
59255 |
| 3580010327 |
273.776 |
-12.096 |
18.03322 |
2.39799 |
59126.5143 |
59126.5183 |
291.00000 |
51 |
VALIDATED |
59130.8 |
59260 |
| 3580010328 |
273.776 |
-12.098 |
18.03155 |
2.39709 |
59150.6495 |
59150.7826 |
0.00000 |
48 |
VALIDATED |
59156.0 |
59284 |
| 3580010329 |
273.775 |
-12.098 |
18.03085 |
2.39749 |
59155.9275 |
59155.9352 |
0.00000 |
0 |
VALIDATED |
59159.8 |
59289 |
| 3580010330 |
273.775 |
-12.097 |
18.03200 |
2.39767 |
59156.3179 |
59156.3438 |
0.00000 |
48 |
VALIDATED |
59160.7 |
59290 |
| 3580010331 |
273.777 |
-12.101 |
18.02931 |
2.39411 |
59157.1565 |
59157.1625 |
0.00000 |
46 |
VALIDATED |
59161.7 |
59291 |
| 3580010332 |
273.778 |
-12.098 |
18.03225 |
2.39536 |
59158.3241 |
59158.9895 |
0.00000 |
46 |
VALIDATED |
59164.7 |
59292 |
| 3580010333 |
273.782 |
-12.099 |
18.03322 |
2.39088 |
59159.5454 |
59159.8918 |
0.00000 |
46 |
VALIDATED |
59164.7 |
59293 |
| 3580010334 |
273.776 |
-12.097 |
18.03253 |
2.39762 |
59160.5798 |
59160.5863 |
0.00000 |
46 |
VALIDATED |
59164.8 |
59294 |
| 3580010335 |
273.776 |
-12.100 |
18.02975 |
2.39601 |
59162.2553 |
59162.3269 |
0.00000 |
0 |
VALIDATED |
59166.7 |
59296 |
| 3580010336 |
273.776 |
-12.097 |
18.03210 |
2.39750 |
59163.2266 |
59163.2537 |
292.00000 |
46 |
VALIDATED |
59167.7 |
59297 |