Observation information
- date-obs: 2026-04-14
- time-obs: 05:57:34.451700000
- date-end: 2026-04-21
- time-end: 08:12:53.864200000
- obs_id: A14_083T10_9000006566
- exposure: 42405.9244542
- sourceid: NGC1249
- observer: Rakshit
- ra_pnt: 47.50507
- dec_pnt: -53.33584
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T10_9000006566cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566cztM0_level2_quad_clean.evt
|
| Size (bytes) | 4,485,176,640 | 1,670,699,520 |
| Size | 4.2 GB
| 1.6 GB
|
| Events in quadrant A | 27,682,062 | 3,855,588 |
| Events in quadrant B | 25,292,206 | 3,858,444 |
| Events in quadrant C | 24,126,930 | 3,130,671 |
| Events in quadrant D | 21,902,854 | 2,965,906 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 633 | 0 |
| B | 0 | 634 | 0 |
| C | 0 | 634 | 0 |
| D | 0 | 634 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1167017 | 0 |
| B | 0 | 1285500 | 0 |
| C | 0 | 1684336 | 0 |
| D | 0 | 1902717 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10798 | 0 |
| B | 0 | 10898 | 0 |
| C | 0 | 10900 | 0 |
| D | 0 | 10902 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 536735 | 9558 | 1.780767% |
| B | 536727 | 25989 | 4.842126% |
| C | 536682 | 84021 | 15.655640% |
| D | 536637 | 61094 | 11.384604% |
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 | 612888 | 536396 | 0 | 0 | 0.00% | 0.00% |  |
| B | 612896 | 535247 | 0 | 0 | 0.00% | 0.00% |  |
| C | 612865 | 527207 | 0 | 0 | 0.00% | 0.00% |  |
| D | 608694 | 535774 | 0 | 0 | 0.00% | 0.00% |  |
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 | 14 | 188 | 31409 | 10.15 | 7253 | 6693 | 2434.9 |
| A | 9 | 255 | 27871 | 8.7 | 7253 | 6693 | 2434.9 |
| A | 14 | 204 | 25888 | 7.88 | 7253 | 6693 | 2434.9 |
| B | 2 | 9 | 29427 | 14.86 | 6686 | 6319 | 1555.5 |
| B | 2 | 8 | 26158 | 12.75 | 6686 | 6319 | 1555.5 |
| B | 3 | 25 | 21244 | 9.6 | 6686 | 6319 | 1555.5 |
| C | 15 | 175 | 19672 | 6.24 | 6439 | 5848 | 2214.1 |
| C | 7 | 221 | 19653 | 6.23 | 6439 | 5848 | 2214.1 |
| C | 2 | 31 | 19249 | 6.05 | 6439 | 5848 | 2214.1 |
| D | 6 | 218 | 27280 | 10.2 | 6260 | 5568 | 2128.8 |
| D | 15 | 11 | 21133 | 7.31 | 6260 | 5568 | 2128.8 |
| D | 8 | 12 | 20913 | 7.21 | 6260 | 5568 | 2128.8 |
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 |  |