Observation information
- date-obs: 2026-04-16
- time-obs: 06:32:15.992500000
- date-end: 2026-04-16
- time-end: 08:43:32.972700000
- obs_id: A14_083T10_9000006566
- exposure: 6949.29791629
- 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_9000006566_57077cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57077cztM0_level2_quad_clean.evt
|
| Size (bytes) | 583,905,600 | 107,403,840 |
| Size | 556.9 MB
| 102.4 MB
|
| Events in quadrant A | 3,577,439 | 719,938 |
| Events in quadrant B | 5,221,727 | 727,787 |
| Events in quadrant C | 6,340,160 | 661,868 |
| Events in quadrant D | 5,873,220 | 603,885 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16357 | 1 |
| B | 0 | 20994 | 2 |
| C | 0 | 24157 | 1 |
| D | 0 | 22732 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 158 | 0 |
| B | 0 | 158 | 0 |
| C | 0 | 158 | 0 |
| D | 0 | 158 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7747 | 299 | 3.859559% |
| B | 7746 | 789 | 10.185902% |
| C | 7746 | 746 | 9.630777% |
| D | 7747 | 845 | 10.907448% |
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 | 7877 | 7749 | 12 | 12 | 0.15% | 0.15% |  |
| B | 7876 | 7748 | 347 | 347 | 4.41% | 4.48% |  |
| C | 7876 | 7748 | 417 | 417 | 5.29% | 5.38% |  |
| D | 7877 | 7749 | 441 | 441 | 5.60% | 5.69% |  |
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 | 251 | 93130 | 435.97 | 865 | 839 | 211.7 |
| A | 3 | 14 | 44523 | 206.36 | 865 | 839 | 211.7 |
| A | 4 | 78 | 25315 | 115.62 | 865 | 839 | 211.7 |
| B | 10 | 16 | 1396029 | 8076.55 | 805 | 773 | 172.8 |
| B | 4 | 171 | 379972 | 2195.02 | 805 | 773 | 172.8 |
| B | 0 | 63 | 116098 | 667.57 | 805 | 773 | 172.8 |
| C | 12 | 254 | 1170526 | 5264.12 | 820 | 809 | 222.2 |
| C | 1 | 16 | 1046275 | 4704.95 | 820 | 809 | 222.2 |
| C | 14 | 245 | 304268 | 1365.67 | 820 | 809 | 222.2 |
| D | 12 | 33 | 1346703 | 5959.6 | 808 | 769 | 225.8 |
| D | 15 | 142 | 747893 | 3308.15 | 808 | 769 | 225.8 |
| D | 8 | 240 | 326168 | 1440.82 | 808 | 769 | 225.8 |
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 |  |