Observation information
- date-obs: 2026-07-16
- time-obs: 05:32:02.495400000
- date-end: 2026-07-16
- time-end: 07:38:47.480200000
- obs_id: A14_045T01_9000006590
- exposure: 7280.67631119
- sourceid: NGC 4383
- observer: ujjwalkrishnan
- ra_pnt: 186.3563
- dec_pnt: 16.47013
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_045T01_9000006590_58429cztM0_level2.fits
| modeM0/AS1A14_045T01_9000006590_58429cztM0_level2_quad_clean.evt
|
| Size (bytes) | 426,974,400 | 110,989,440 |
| Size | 407.2 MB
| 105.8 MB
|
| Events in quadrant A | 3,552,663 | 723,070 |
| Events in quadrant B | 3,762,000 | 766,688 |
| Events in quadrant C | 3,958,212 | 691,063 |
| Events in quadrant D | 3,940,114 | 650,684 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16061 | 0 |
| B | 0 | 16466 | 0 |
| C | 0 | 17279 | 0 |
| D | 0 | 17067 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7605 | 172 | 2.261670% |
| B | 7606 | 273 | 3.589272% |
| C | 7606 | 190 | 2.498028% |
| D | 7606 | 121 | 1.590849% |
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 | 7605 | 7605 | 3 | 3 | 0.04% | 0.04% |  |
| B | 7606 | 7606 | 32 | 32 | 0.42% | 0.42% |  |
| C | 7606 | 7606 | 106 | 106 | 1.39% | 1.39% |  |
| D | 7606 | 7606 | 55 | 55 | 0.72% | 0.72% |  |
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 | 12 | 114 | 77739 | 360.81 | 863 | 838 | 213.1 |
| A | 2 | 143 | 58684 | 271.4 | 863 | 838 | 213.1 |
| A | 12 | 80 | 23422 | 105.96 | 863 | 838 | 213.1 |
| B | 4 | 171 | 85516 | 463.12 | 847 | 815 | 182.9 |
| B | 10 | 246 | 84678 | 458.54 | 847 | 815 | 182.9 |
| B | 5 | 172 | 61701 | 332.91 | 847 | 815 | 182.9 |
| C | 5 | 10 | 397254 | 1745.36 | 831 | 824 | 227.1 |
| C | 12 | 252 | 88738 | 387.06 | 831 | 824 | 227.1 |
| C | 14 | 254 | 61919 | 268.98 | 831 | 824 | 227.1 |
| D | 8 | 240 | 153866 | 651.76 | 831 | 793 | 234.9 |
| D | 12 | 248 | 134014 | 567.23 | 831 | 793 | 234.9 |
| D | 3 | 12 | 92314 | 389.68 | 831 | 793 | 234.9 |
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 |  |