Observation information
- date-obs: 2026-03-26
- time-obs: 13:06:41.573200000
- date-end: 2026-03-26
- time-end: 15:01:59.555800000
- obs_id: A14_083T05_9000006560
- exposure: 5532.42452347
- 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_9000006560_56769cztM0_level2.fits
| modeM0/AS1A14_083T05_9000006560_56769cztM0_level2_quad_clean.evt
|
| Size (bytes) | 399,582,720 | 85,942,080 |
| Size | 381.1 MB
| 82.0 MB
|
| Events in quadrant A | 4,264,528 | 551,760 |
| Events in quadrant B | 4,046,429 | 597,897 |
| Events in quadrant C | 3,026,140 | 532,785 |
| Events in quadrant D | 2,998,543 | 510,536 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16666 | 1 |
| B | 0 | 16093 | 1 |
| C | 0 | 13518 | 1 |
| D | 0 | 13167 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5857 | 317 | 5.412327% |
| B | 5856 | 250 | 4.269126% |
| C | 5856 | 144 | 2.459016% |
| D | 5857 | 68 | 1.161004% |
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 | 6918 | 5858 | 218 | 218 | 3.15% | 3.72% |  |
| B | 6917 | 5857 | 102 | 102 | 1.47% | 1.74% |  |
| C | 6917 | 5857 | 112 | 112 | 1.62% | 1.91% |  |
| D | 6918 | 5858 | 16 | 16 | 0.23% | 0.27% |  |
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 | 691399 | 4452.19 | 622 | 605 | 155.2 |
| A | 3 | 14 | 587456 | 3782.27 | 622 | 605 | 155.2 |
| A | 10 | 251 | 282045 | 1813.89 | 622 | 605 | 155.2 |
| B | 5 | 185 | 890751 | 6732.86 | 619 | 596 | 132.2 |
| B | 4 | 206 | 401544 | 3032.65 | 619 | 596 | 132.2 |
| B | 10 | 247 | 104851 | 788.55 | 619 | 596 | 132.2 |
| C | 15 | 230 | 295450 | 1779.02 | 602 | 595 | 165.7 |
| C | 14 | 96 | 93759 | 562.11 | 602 | 595 | 165.7 |
| C | 13 | 3 | 70994 | 424.75 | 602 | 595 | 165.7 |
| D | 2 | 249 | 155150 | 894.8 | 608 | 583 | 172.7 |
| D | 2 | 120 | 104322 | 600.55 | 608 | 583 | 172.7 |
| D | 11 | 129 | 94578 | 544.14 | 608 | 583 | 172.7 |
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 |  |