Observation information
- date-obs: 2026-04-19
- time-obs: 22:37:11.176600000
- date-end: 2026-04-20
- time-end: 01:04:42.153300000
- obs_id: A14_083T10_9000006566
- exposure: 4452.84199309
- 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_57132cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57132cztM0_level2_quad_clean.evt
|
| Size (bytes) | 585,017,280 | 88,277,760 |
| Size | 557.9 MB
| 84.2 MB
|
| Events in quadrant A | 3,062,928 | 652,986 |
| Events in quadrant B | 3,774,820 | 678,488 |
| Events in quadrant C | 6,291,429 | 435,668 |
| Events in quadrant D | 8,022,911 | 454,240 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 24 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13840 | 2 |
| B | 0 | 15647 | 3 |
| C | 0 | 23181 | 2 |
| D | 0 | 28385 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6472 | 58 | 0.896168% |
| B | 6471 | 313 | 4.836965% |
| C | 6471 | 1991 | 30.768042% |
| D | 6471 | 1589 | 24.555710% |
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 | 8852 | 6473 | 17 | 17 | 0.19% | 0.26% |  |
| B | 8851 | 6472 | 219 | 219 | 2.47% | 3.38% |  |
| C | 8850 | 6470 | 1351 | 1351 | 15.27% | 20.88% |  |
| D | 8851 | 6472 | 1614 | 1614 | 18.24% | 24.94% |  |
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 | 158828 | 893.86 | 725 | 706 | 176.9 |
| A | 10 | 251 | 49766 | 277.34 | 725 | 706 | 176.9 |
| A | 5 | 113 | 18639 | 101.38 | 725 | 706 | 176.9 |
| B | 10 | 16 | 695115 | 4695.89 | 698 | 673 | 147.9 |
| B | 0 | 213 | 114193 | 767.63 | 698 | 673 | 147.9 |
| B | 5 | 185 | 68870 | 461.16 | 698 | 673 | 147.9 |
| C | 15 | 198 | 4108280 | 29479.81 | 508 | 503 | 139.3 |
| C | 12 | 252 | 105994 | 757.07 | 508 | 503 | 139.3 |
| C | 14 | 67 | 49305 | 350.23 | 508 | 503 | 139.3 |
| D | 15 | 142 | 3250634 | 18113.95 | 630 | 600 | 179.4 |
| D | 12 | 33 | 1747262 | 9734.96 | 630 | 600 | 179.4 |
| D | 2 | 249 | 223269 | 1241.04 | 630 | 600 | 179.4 |
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 |  |