Observation information
- date-obs: 2025-12-05
- time-obs: 00:41:20.639200000
- date-end: 2025-12-05
- time-end: 02:18:00.620300000
- obs_id: A14_025T01_9000006530
- exposure: 4812.58168662
- 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_55112cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55112cztM0_level2_quad_clean.evt
|
| Size (bytes) | 313,352,640 | 75,591,360 |
| Size | 298.8 MB
| 72.1 MB
|
| Events in quadrant A | 3,177,847 | 492,023 |
| Events in quadrant B | 2,287,431 | 542,552 |
| Events in quadrant C | 2,827,061 | 474,194 |
| Events in quadrant D | 2,913,110 | 426,079 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13218 | 1 |
| B | 0 | 10562 | 1 |
| C | 0 | 12231 | 1 |
| D | 0 | 12499 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 104 | 0 |
| B | 0 | 104 | 0 |
| C | 0 | 104 | 0 |
| D | 0 | 104 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5050 | 141 | 2.792079% |
| B | 5050 | 53 | 1.049505% |
| C | 5050 | 58 | 1.148515% |
| D | 5050 | 220 | 4.356436% |
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 | 5050 | 5050 | 103 | 103 | 2.04% | 2.04% |  |
| B | 5050 | 5050 | 6 | 6 | 0.12% | 0.12% |  |
| C | 5050 | 5050 | 18 | 18 | 0.36% | 0.36% |  |
| D | 5050 | 5050 | 168 | 168 | 3.33% | 3.33% |  |
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 | 5 | 241 | 985284 | 7205.04 | 545 | 529 | 136.7 |
| A | 3 | 62 | 37543 | 270.82 | 545 | 529 | 136.7 |
| A | 0 | 8 | 16749 | 118.67 | 545 | 529 | 136.7 |
| B | 0 | 63 | 67526 | 563.04 | 545 | 526 | 119.0 |
| B | 10 | 247 | 53395 | 444.29 | 545 | 526 | 119.0 |
| B | 12 | 111 | 14318 | 115.9 | 545 | 526 | 119.0 |
| C | 3 | 242 | 452698 | 3082.16 | 531 | 527 | 146.7 |
| C | 6 | 223 | 111698 | 757.78 | 531 | 527 | 146.7 |
| C | 13 | 3 | 70336 | 475.84 | 531 | 527 | 146.7 |
| D | 2 | 252 | 249891 | 1699.56 | 517 | 492 | 146.7 |
| D | 3 | 12 | 169673 | 1152.91 | 517 | 492 | 146.7 |
| D | 12 | 6 | 112300 | 761.93 | 517 | 492 | 146.7 |
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 |  |