Observation information
- date-obs: 2026-07-12
- time-obs: 06:07:55.239500000
- date-end: 2026-07-18
- time-end: 05:37:30.107700000
- obs_id: A14_045T01_9000006590
- exposure: 25244.057863
- 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_9000006590cztM0_level2.fits
| modeM0/AS1A14_045T01_9000006590cztM0_level2_quad_clean.evt
|
| Size (bytes) | 3,630,061,440 | 1,231,303,680 |
| Size | 3.4 GB
| 1.1 GB
|
| Events in quadrant A | 21,988,130 | 2,173,626 |
| Events in quadrant B | 19,200,004 | 2,162,627 |
| Events in quadrant C | 21,090,752 | 1,955,929 |
| Events in quadrant D | 18,490,028 | 1,849,581 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8634 | 0 |
| B | 0 | 8634 | 0 |
| C | 0 | 8634 | 0 |
| D | 0 | 8634 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1035292 | 0 |
| B | 0 | 1385444 | 0 |
| C | 0 | 1102802 | 0 |
| D | 0 | 1154422 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 528 | 0 |
| B | 0 | 528 | 0 |
| C | 0 | 529 | 0 |
| D | 0 | 530 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 425156 | 15221 | 3.580098% |
| B | 425153 | 65603 | 15.430445% |
| C | 425157 | 21000 | 4.939352% |
| D | 425159 | 16742 | 3.937821% |
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 | 516575 | 425068 | 0 | 0 | 0.00% | 0.00% |  |
| B | 516575 | 423004 | 0 | 0 | 0.00% | 0.00% |  |
| C | 516576 | 424926 | 0 | 0 | 0.00% | 0.00% |  |
| D | 516576 | 424940 | 0 | 0 | 0.00% | 0.00% |  |
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 | 14 | 188 | 25339 | 10.39 | 5791 | 5326 | 1925.7 |
| A | 14 | 204 | 21019 | 8.15 | 5791 | 5326 | 1925.7 |
| A | 14 | 95 | 18440 | 6.81 | 5791 | 5326 | 1925.7 |
| B | 2 | 9 | 22265 | 14.86 | 5077 | 4791 | 1175.8 |
| B | 2 | 8 | 19665 | 12.65 | 5077 | 4791 | 1175.8 |
| B | 3 | 25 | 15987 | 9.52 | 5077 | 4791 | 1175.8 |
| C | 7 | 221 | 17259 | 6.28 | 5628 | 5086 | 1937.5 |
| C | 2 | 31 | 16794 | 6.04 | 5628 | 5086 | 1937.5 |
| C | 15 | 127 | 16538 | 5.91 | 5628 | 5086 | 1937.5 |
| D | 6 | 218 | 22226 | 9.92 | 5273 | 4680 | 1769.3 |
| D | 15 | 11 | 17777 | 7.4 | 5273 | 4680 | 1769.3 |
| D | 8 | 12 | 17216 | 7.08 | 5273 | 4680 | 1769.3 |
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 |  |