Observation information
- date-obs: 2026-07-12
- time-obs: 19:48:53.141300000
- date-end: 2026-07-12
- time-end: 22:10:12.121800000
- obs_id: A14_045T01_9000006590
- exposure: 5761.79663473
- 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_58379cztM0_level2.fits
| modeM0/AS1A14_045T01_9000006590_58379cztM0_level2_quad_clean.evt
|
| Size (bytes) | 471,078,720 | 95,212,800 |
| Size | 449.3 MB
| 90.8 MB
|
| Events in quadrant A | 3,827,436 | 632,061 |
| Events in quadrant B | 6,386,226 | 608,802 |
| Events in quadrant C | 3,373,460 | 604,949 |
| Events in quadrant D | 3,338,748 | 578,344 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16111 | 2 |
| B | 0 | 23479 | 2 |
| C | 0 | 14850 | 2 |
| D | 0 | 14402 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6584 | 214 | 3.250304% |
| B | 6584 | 950 | 14.428919% |
| C | 6584 | 162 | 2.460510% |
| D | 6584 | 31 | 0.470838% |
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 | 7674 | 6584 | 176 | 176 | 2.29% | 2.67% |  |
| B | 7674 | 6584 | 737 | 737 | 9.60% | 11.19% |  |
| C | 7674 | 6585 | 134 | 134 | 1.75% | 2.03% |  |
| D | 7674 | 6585 | 24 | 24 | 0.31% | 0.36% |  |
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 | 7 | 64 | 499015 | 2791.12 | 716 | 699 | 178.5 |
| A | 4 | 249 | 109986 | 612.13 | 716 | 699 | 178.5 |
| A | 12 | 80 | 106015 | 589.89 | 716 | 699 | 178.5 |
| B | 5 | 172 | 1525031 | 10536.08 | 668 | 642 | 144.7 |
| B | 6 | 255 | 967874 | 6685.19 | 668 | 642 | 144.7 |
| B | 8 | 128 | 578960 | 3997.14 | 668 | 642 | 144.7 |
| C | 4 | 5 | 430745 | 2256.42 | 695 | 689 | 190.6 |
| C | 6 | 223 | 79694 | 414.52 | 695 | 689 | 190.6 |
| C | 14 | 245 | 34268 | 176.18 | 695 | 689 | 190.6 |
| D | 11 | 129 | 292849 | 1476.18 | 694 | 664 | 197.9 |
| D | 2 | 249 | 85514 | 428.68 | 694 | 664 | 197.9 |
| D | 2 | 153 | 54048 | 269.71 | 694 | 664 | 197.9 |
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 |  |