Observation information
- date-obs: 2026-03-23
- time-obs: 22:09:41.144500000
- date-end: 2026-03-24
- time-end: 00:35:44.123400000
- obs_id: A14_083T05_9000006560
- exposure: 8169.08536339
- 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_56730cztM0_level2.fits
| modeM0/AS1A14_083T05_9000006560_56730cztM0_level2_quad_clean.evt
|
| Size (bytes) | 551,430,720 | 124,286,400 |
| Size | 525.9 MB
| 118.5 MB
|
| Events in quadrant A | 5,994,108 | 795,823 |
| Events in quadrant B | 4,072,469 | 890,160 |
| Events in quadrant C | 5,098,146 | 739,494 |
| Events in quadrant D | 4,566,474 | 729,733 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 174 | 0 |
| B | 0 | 174 | 0 |
| C | 0 | 174 | 0 |
| D | 0 | 174 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24112 | 0 |
| B | 0 | 18809 | 0 |
| C | 0 | 21662 | 0 |
| D | 0 | 20101 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8763 | 467 | 5.329225% |
| B | 8763 | 59 | 0.673285% |
| C | 8764 | 523 | 5.967595% |
| D | 8764 | 122 | 1.392058% |
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 | 8763 | 8763 | 388 | 388 | 4.43% | 4.43% |  |
| B | 8763 | 8763 | 18 | 18 | 0.21% | 0.21% |  |
| C | 8764 | 8764 | 201 | 201 | 2.29% | 2.29% |  |
| D | 8764 | 8764 | 104 | 104 | 1.19% | 1.19% |  |
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 | 1382039 | 5931.53 | 939 | 913 | 232.8 |
| A | 3 | 14 | 673121 | 2886.94 | 939 | 913 | 232.8 |
| A | 10 | 251 | 253170 | 1083.37 | 939 | 913 | 232.8 |
| B | 4 | 206 | 102945 | 490.1 | 953 | 916 | 208.2 |
| B | 10 | 247 | 63331 | 299.82 | 953 | 916 | 208.2 |
| B | 7 | 252 | 37492 | 175.7 | 953 | 916 | 208.2 |
| C | 13 | 3 | 939765 | 3869.52 | 890 | 883 | 242.6 |
| C | 15 | 208 | 300800 | 1236.08 | 890 | 883 | 242.6 |
| C | 15 | 230 | 78154 | 318.47 | 890 | 883 | 242.6 |
| D | 2 | 249 | 420179 | 1641.5 | 915 | 876 | 255.4 |
| D | 2 | 207 | 148873 | 579.38 | 915 | 876 | 255.4 |
| D | 2 | 252 | 147792 | 575.15 | 915 | 876 | 255.4 |
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 |  |