Observation information
- date-obs: 2025-12-03
- time-obs: 21:08:57.896900000
- date-end: 2025-12-03
- time-end: 23:15:09.873900000
- obs_id: A14_025T01_9000006530
- exposure: 5830.06130254
- 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_55095cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55095cztM0_level2_quad_clean.evt
|
| Size (bytes) | 474,367,680 | 99,164,160 |
| Size | 452.4 MB
| 94.6 MB
|
| Events in quadrant A | 2,930,828 | 669,292 |
| Events in quadrant B | 3,105,874 | 716,623 |
| Events in quadrant C | 4,865,051 | 618,696 |
| Events in quadrant D | 6,152,162 | 544,064 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13589 | 6 |
| B | 0 | 14034 | 2 |
| C | 0 | 18985 | 6 |
| D | 0 | 22967 | 9 |
| 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 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6510 | 30 | 0.460829% |
| B | 6512 | 56 | 0.859951% |
| C | 6511 | 217 | 3.332821% |
| D | 6511 | 780 | 11.979727% |
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 | 7572 | 6513 | 12 | 12 | 0.16% | 0.18% |  |
| B | 7572 | 6513 | 5 | 5 | 0.07% | 0.08% |  |
| C | 7572 | 6513 | 142 | 142 | 1.88% | 2.18% |  |
| D | 7572 | 6513 | 795 | 795 | 10.50% | 12.21% |  |
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 | 60428 | 332.16 | 720 | 704 | 179.8 |
| A | 8 | 62 | 33303 | 181.3 | 720 | 704 | 179.8 |
| A | 3 | 61 | 25535 | 138.1 | 720 | 704 | 179.8 |
| B | 4 | 21 | 222904 | 1416.65 | 715 | 690 | 156.9 |
| B | 10 | 247 | 23700 | 146.69 | 715 | 690 | 156.9 |
| B | 12 | 111 | 18776 | 115.3 | 715 | 690 | 156.9 |
| C | 3 | 242 | 1400390 | 7309.16 | 692 | 687 | 191.5 |
| C | 6 | 223 | 290353 | 1512.62 | 692 | 687 | 191.5 |
| C | 13 | 3 | 279816 | 1457.59 | 692 | 687 | 191.5 |
| D | 15 | 94 | 2235790 | 11684.58 | 664 | 634 | 191.3 |
| D | 6 | 239 | 570008 | 2976.48 | 664 | 634 | 191.3 |
| D | 9 | 1 | 140280 | 730.02 | 664 | 634 | 191.3 |
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 |  |