Observation information
- date-obs: 2026-07-14
- time-obs: 13:36:25.814400000
- date-end: 2026-07-15
- time-end: 02:14:46.710600000
- obs_id: A14_045T01_9000006590
- exposure: 6833.48722571
- 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_58411cztM0_level2.fits
| modeM0/AS1A14_045T01_9000006590_58411cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,399,092,480 | 172,010,880 |
| Size | 1.3 GB
| 164.0 MB
|
| Events in quadrant A | 10,835,374 | 1,215,528 |
| Events in quadrant B | 20,760,836 | 725,758 |
| Events in quadrant C | 10,049,320 | 1,206,269 |
| Events in quadrant D | 9,127,217 | 1,150,866 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 266 | 0 |
| B | 0 | 266 | 0 |
| C | 0 | 266 | 0 |
| D | 0 | 266 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 41139 | 11 |
| B | 0 | 70804 | 5 |
| C | 0 | 38798 | 4 |
| D | 0 | 36196 | 4 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 13163 | 1081 | 8.212414% |
| B | 13163 | 6873 | 52.214541% |
| C | 13163 | 736 | 5.591431% |
| D | 13163 | 396 | 3.008433% |
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 | 45501 | 13167 | 650 | 650 | 1.43% | 4.94% |  |
| B | 45501 | 13164 | 4620 | 4620 | 10.15% | 35.10% |  |
| C | 45501 | 13166 | 540 | 540 | 1.19% | 4.10% |  |
| D | 45501 | 13166 | 307 | 307 | 0.67% | 2.33% |  |
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 | 2448514 | 6805.5 | 1460 | 1426 | 359.6 |
| A | 3 | 14 | 1363685 | 3788.52 | 1460 | 1426 | 359.6 |
| A | 7 | 64 | 614108 | 1703.9 | 1460 | 1426 | 359.6 |
| B | 6 | 255 | 12476738 | 54725.92 | 1069 | 1031 | 228.0 |
| B | 5 | 172 | 2980512 | 13069.79 | 1069 | 1031 | 228.0 |
| B | 4 | 158 | 364053 | 1592.43 | 1069 | 1031 | 228.0 |
| C | 9 | 38 | 1686464 | 4286.45 | 1433 | 1419 | 393.1 |
| C | 6 | 223 | 868041 | 2204.53 | 1433 | 1419 | 393.1 |
| C | 14 | 96 | 698645 | 1773.62 | 1433 | 1419 | 393.1 |
| D | 8 | 240 | 1067337 | 2601.8 | 1441 | 1379 | 409.7 |
| D | 12 | 110 | 949672 | 2314.6 | 1441 | 1379 | 409.7 |
| D | 2 | 249 | 411373 | 1000.71 | 1441 | 1379 | 409.7 |
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 |  |