Observation information
- date-obs: 2026-04-17
- time-obs: 22:10:53.628300000
- date-end: 2026-04-18
- time-end: 00:31:52.606300000
- obs_id: A14_083T10_9000006566
- exposure: 5910.83941871
- 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_57102cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57102cztM0_level2_quad_clean.evt
|
| Size (bytes) | 444,507,840 | 96,932,160 |
| Size | 423.9 MB
| 92.4 MB
|
| Events in quadrant A | 3,096,780 | 650,994 |
| Events in quadrant B | 3,634,832 | 681,395 |
| Events in quadrant C | 3,061,875 | 617,301 |
| Events in quadrant D | 6,163,829 | 539,388 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13640 | 2 |
| B | 0 | 15307 | 2 |
| C | 0 | 13724 | 2 |
| D | 0 | 22751 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6393 | 64 | 1.001095% |
| B | 6393 | 272 | 4.254654% |
| C | 6393 | 58 | 0.907242% |
| D | 6393 | 560 | 8.759581% |
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 | 7573 | 6394 | 12 | 12 | 0.16% | 0.19% |  |
| B | 7573 | 6394 | 128 | 128 | 1.69% | 2.00% |  |
| C | 7573 | 6394 | 23 | 23 | 0.30% | 0.36% |  |
| D | 7573 | 6394 | 585 | 585 | 7.72% | 9.15% |  |
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 | 3 | 14 | 131018 | 746.9 | 715 | 696 | 174.5 |
| A | 10 | 251 | 78111 | 443.68 | 715 | 696 | 174.5 |
| A | 5 | 113 | 45279 | 255.51 | 715 | 696 | 174.5 |
| B | 10 | 16 | 631378 | 4313.01 | 691 | 665 | 146.2 |
| B | 0 | 213 | 63448 | 429.33 | 691 | 665 | 146.2 |
| B | 0 | 63 | 48061 | 324.11 | 691 | 665 | 146.2 |
| C | 6 | 223 | 141874 | 754.97 | 694 | 689 | 187.0 |
| C | 12 | 252 | 66457 | 351.69 | 694 | 689 | 187.0 |
| C | 14 | 254 | 37156 | 195.0 | 694 | 689 | 187.0 |
| D | 12 | 33 | 1444996 | 7578.76 | 670 | 637 | 190.6 |
| D | 15 | 142 | 1326008 | 6954.42 | 670 | 637 | 190.6 |
| D | 7 | 96 | 217009 | 1135.34 | 670 | 637 | 190.6 |
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 |  |