Observation information
- date-obs: 2025-12-03
- time-obs: 19:26:25.912900000
- date-end: 2025-12-03
- time-end: 21:31:32.892700000
- obs_id: A14_025T01_9000006530
- exposure: 6067.58184403
- 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_55093cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55093cztM0_level2_quad_clean.evt
|
| Size (bytes) | 440,429,760 | 100,416,960 |
| Size | 420.0 MB
| 95.8 MB
|
| Events in quadrant A | 2,936,824 | 680,512 |
| Events in quadrant B | 2,992,610 | 715,425 |
| Events in quadrant C | 4,397,640 | 614,100 |
| Events in quadrant D | 5,466,300 | 573,452 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13613 | 11 |
| B | 0 | 13809 | 10 |
| C | 0 | 17658 | 28 |
| D | 0 | 20826 | 46 |
| 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 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 | 6562 | 24 | 0.365742% |
| B | 6562 | 42 | 0.640049% |
| C | 6558 | 251 | 3.827386% |
| D | 6557 | 539 | 8.220223% |
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 | 7507 | 6568 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7506 | 6567 | 5 | 5 | 0.07% | 0.08% |  |
| C | 7507 | 6568 | 176 | 176 | 2.34% | 2.68% |  |
| D | 7507 | 6568 | 539 | 539 | 7.18% | 8.21% |  |
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 | 4 | 3 | 41520 | 223.13 | 728 | 711 | 182.9 |
| A | 3 | 61 | 27566 | 146.84 | 728 | 711 | 182.9 |
| A | 7 | 160 | 20975 | 110.8 | 728 | 711 | 182.9 |
| B | 5 | 185 | 39612 | 248.68 | 717 | 692 | 156.5 |
| B | 5 | 172 | 35188 | 220.41 | 717 | 692 | 156.5 |
| B | 4 | 21 | 33484 | 209.53 | 717 | 692 | 156.5 |
| C | 3 | 242 | 746486 | 3847.11 | 696 | 689 | 193.9 |
| C | 13 | 3 | 273442 | 1406.97 | 696 | 689 | 193.9 |
| C | 6 | 223 | 186678 | 959.4 | 696 | 689 | 193.9 |
| D | 15 | 94 | 1267539 | 6416.9 | 683 | 652 | 197.4 |
| D | 6 | 239 | 432392 | 2186.8 | 683 | 652 | 197.4 |
| D | 3 | 12 | 341344 | 1725.64 | 683 | 652 | 197.4 |
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 |  |