Observation information
- date-obs: 2025-11-30
- time-obs: 04:50:44.712100000
- date-end: 2025-11-30
- time-end: 06:49:05.693800000
- obs_id: A14_025T01_9000006530
- exposure: 695.745476663
- 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_55040cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55040cztM0_level2_quad_clean.evt
|
| Size (bytes) | 690,793,920 | 72,593,280 |
| Size | 658.8 MB
| 69.2 MB
|
| Events in quadrant A | 5,327,359 | 530,318 |
| Events in quadrant B | 3,007,427 | 633,854 |
| Events in quadrant C | 2,971,089 | 557,418 |
| Events in quadrant D | 13,801,751 | 60,507 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19947 | 26 |
| B | 0 | 13302 | 5 |
| C | 0 | 13254 | 3 |
| D | 0 | 45138 | 71 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5957 | 656 | 11.012254% |
| B | 5960 | 103 | 1.728188% |
| C | 5960 | 64 | 1.073826% |
| D | 5952 | 5360 | 90.053763% |
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 | 7102 | 5963 | 440 | 440 | 6.20% | 7.38% |  |
| B | 7102 | 5963 | 43 | 43 | 0.61% | 0.72% |  |
| C | 7101 | 5962 | 42 | 42 | 0.59% | 0.70% |  |
| D | 7101 | 5957 | 4394 | 4394 | 61.88% | 73.76% |  |
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 | 15 | 32 | 1521511 | 9960.35 | 615 | 601 | 152.7 |
| A | 3 | 95 | 729788 | 4775.4 | 615 | 601 | 152.7 |
| A | 0 | 8 | 604258 | 3953.31 | 615 | 601 | 152.7 |
| B | 5 | 236 | 133245 | 946.64 | 644 | 619 | 140.1 |
| B | 4 | 81 | 122121 | 867.24 | 644 | 619 | 140.1 |
| B | 5 | 185 | 120570 | 856.17 | 644 | 619 | 140.1 |
| C | 13 | 3 | 176007 | 1001.28 | 633 | 628 | 175.2 |
| C | 6 | 223 | 128022 | 727.32 | 633 | 628 | 175.2 |
| C | 12 | 252 | 79074 | 447.87 | 633 | 628 | 175.2 |
| D | 15 | 94 | 9631263 | 133040.63 | 241 | 229 | 72.4 |
| D | 11 | 129 | 2058318 | 28429.91 | 241 | 229 | 72.4 |
| D | 15 | 93 | 428901 | 5921.56 | 241 | 229 | 72.4 |
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 |  |