Observation information
- date-obs: 2026-03-03
- time-obs: 16:57:57.310300000
- date-end: 2026-03-03
- time-end: 19:02:31.281000000
- obs_id: A14_083T05_9000006554
- exposure: 5259.69478607
- sourceid: NGC1556
- observer: Rakshit
- ra_pnt: 64.43679
- dec_pnt: -50.16444
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T05_9000006554_56429cztM0_level2.fits
| modeM0/AS1A14_083T05_9000006554_56429cztM0_level2_quad_clean.evt
|
| Size (bytes) | 661,705,920 | 86,103,360 |
| Size | 631.1 MB
| 82.1 MB
|
| Events in quadrant A | 5,296,947 | 579,435 |
| Events in quadrant B | 6,710,016 | 535,225 |
| Events in quadrant C | 5,547,804 | 532,577 |
| Events in quadrant D | 6,423,016 | 495,527 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20541 | 2 |
| B | 0 | 24480 | 1 |
| C | 0 | 21232 | 1 |
| D | 0 | 23780 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6658 | 609 | 9.146891% |
| B | 6658 | 1524 | 22.889757% |
| C | 6659 | 755 | 11.338039% |
| D | 6659 | 870 | 13.065025% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7473 | 6659 | 518 | 518 | 6.93% | 7.78% |  |
| B | 7473 | 6659 | 1072 | 1072 | 14.34% | 16.10% |  |
| C | 7474 | 6660 | 606 | 606 | 8.11% | 9.10% |  |
| D | 7474 | 6660 | 950 | 950 | 12.71% | 14.26% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 3 | 62 | 1336161 | 7941.21 | 677 | 660 | 168.2 |
| A | 12 | 3 | 353996 | 2101.02 | 677 | 660 | 168.2 |
| A | 8 | 249 | 309849 | 1838.51 | 677 | 660 | 168.2 |
| B | 4 | 206 | 3524092 | 25882.93 | 632 | 610 | 136.1 |
| B | 5 | 185 | 317729 | 2329.5 | 632 | 610 | 136.1 |
| B | 4 | 171 | 76819 | 559.82 | 632 | 610 | 136.1 |
| C | 12 | 254 | 1710604 | 9757.96 | 632 | 627 | 175.2 |
| C | 15 | 230 | 395622 | 2254.03 | 632 | 627 | 175.2 |
| C | 15 | 147 | 229675 | 1307.06 | 632 | 627 | 175.2 |
| D | 8 | 160 | 1763485 | 9620.62 | 643 | 615 | 183.2 |
| D | 2 | 249 | 406592 | 2215.56 | 643 | 615 | 183.2 |
| D | 8 | 129 | 369497 | 2013.12 | 643 | 615 | 183.2 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |