Observation information
- date-obs: 2026-04-21
- time-obs: 16:43:11.774700000
- date-end: 2026-04-21
- time-end: 18:43:20.754700000
- obs_id: A14_070T08_9000006568
- exposure: 2822.83103418
- sourceid: NGC2173
- observer: saroonsasi19
- ra_pnt: 89.49167
- dec_pnt: -72.97833
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_070T08_9000006568_57158cztM0_level2.fits
| modeM0/AS1A14_070T08_9000006568_57158cztM0_level2_quad_clean.evt
|
| Size (bytes) | 604,535,040 | 81,279,360 |
| Size | 576.5 MB
| 77.5 MB
|
| Events in quadrant A | 2,655,468 | 605,593 |
| Events in quadrant B | 4,417,426 | 612,708 |
| Events in quadrant C | 10,544,870 | 278,601 |
| Events in quadrant D | 4,278,764 | 531,999 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12619 | 1 |
| B | 0 | 17418 | 1 |
| C | 0 | 35654 | 1 |
| D | 0 | 17059 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6190 | 12 | 0.193861% |
| B | 6190 | 374 | 6.042003% |
| C | 6189 | 3473 | 56.115689% |
| D | 6189 | 175 | 2.827597% |
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 | 7210 | 6191 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7210 | 6191 | 264 | 264 | 3.66% | 4.26% |  |
| C | 7209 | 6190 | 2865 | 2865 | 39.74% | 46.28% |  |
| D | 7209 | 6190 | 175 | 175 | 2.43% | 2.83% |  |
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 | 10 | 248 | 57495 | 351.24 | 654 | 638 | 161.9 |
| A | 3 | 14 | 33027 | 200.09 | 654 | 638 | 161.9 |
| A | 10 | 251 | 14618 | 86.36 | 654 | 638 | 161.9 |
| B | 10 | 16 | 700072 | 5141.97 | 633 | 610 | 136.0 |
| B | 5 | 185 | 503499 | 3696.9 | 633 | 610 | 136.0 |
| B | 8 | 128 | 219243 | 1607.24 | 633 | 610 | 136.0 |
| C | 15 | 198 | 8440234 | 69090.96 | 441 | 436 | 122.2 |
| C | 13 | 3 | 273678 | 2236.85 | 441 | 436 | 122.2 |
| C | 9 | 38 | 26323 | 211.92 | 441 | 436 | 122.2 |
| D | 12 | 33 | 947883 | 5355.27 | 620 | 592 | 176.9 |
| D | 2 | 249 | 188808 | 1064.03 | 620 | 592 | 176.9 |
| D | 7 | 96 | 153638 | 865.21 | 620 | 592 | 176.9 |
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 |  |