Observation information
- date-obs: 2025-12-03
- time-obs: 03:51:05.547100000
- date-end: 2025-12-03
- time-end: 05:56:32.034800000
- obs_id: A14_025T01_9000006530
- exposure: 6292.91589421
- sourceid: NGC 3227
- observer: arijit
- ra_pnt: 155.8774
- dec_pnt: 19.86505
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_025T01_9000006530_55084cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55084cztM0_level2_quad_clean.evt
|
| Size (bytes) | 346,435,200 | 97,485,120 |
| Size | 330.4 MB
| 93.0 MB
|
| Events in quadrant A | 2,880,606 | 638,341 |
| Events in quadrant B | 3,058,091 | 686,244 |
| Events in quadrant C | 2,902,541 | 610,874 |
| Events in quadrant D | 3,477,970 | 564,140 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13471 | 1 |
| B | 0 | 13928 | 1 |
| C | 0 | 13621 | 1 |
| D | 0 | 15207 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6477 | 52 | 0.802841% |
| B | 6477 | 111 | 1.713756% |
| C | 6478 | 45 | 0.694659% |
| D | 6478 | 104 | 1.605434% |
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 | 7527 | 6477 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7527 | 6477 | 18 | 18 | 0.24% | 0.28% |  |
| C | 7528 | 6478 | 10 | 10 | 0.13% | 0.15% |  |
| D | 7528 | 6479 | 50 | 50 | 0.66% | 0.77% |  |
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 | 0 | 8 | 53889 | 300.09 | 718 | 702 | 177.2 |
| A | 4 | 3 | 20360 | 110.91 | 718 | 702 | 177.2 |
| A | 13 | 254 | 20315 | 110.66 | 718 | 702 | 177.2 |
| B | 5 | 185 | 183662 | 1199.31 | 705 | 678 | 152.6 |
| B | 10 | 247 | 29692 | 190.16 | 705 | 678 | 152.6 |
| B | 9 | 251 | 21113 | 133.93 | 705 | 678 | 152.6 |
| C | 12 | 252 | 45345 | 233.15 | 695 | 689 | 191.5 |
| C | 6 | 223 | 37815 | 193.83 | 695 | 689 | 191.5 |
| C | 13 | 3 | 34288 | 175.42 | 695 | 689 | 191.5 |
| D | 11 | 129 | 221974 | 1141.71 | 686 | 657 | 193.8 |
| D | 9 | 1 | 175916 | 904.11 | 686 | 657 | 193.8 |
| D | 15 | 94 | 144279 | 740.9 | 686 | 657 | 193.8 |
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 |  |