Observation information
- date-obs: 2026-04-20
- time-obs: 18:08:06.990000000
- date-end: 2026-04-20
- time-end: 20:10:13.962300000
- obs_id: A14_083T10_9000006566
- exposure: 5309.39239258
- 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_57144cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57144cztM0_level2_quad_clean.evt
|
| Size (bytes) | 500,088,960 | 89,386,560 |
| Size | 476.9 MB
| 85.2 MB
|
| Events in quadrant A | 2,739,756 | 620,422 |
| Events in quadrant B | 5,138,609 | 562,291 |
| Events in quadrant C | 4,315,169 | 562,014 |
| Events in quadrant D | 5,832,720 | 526,055 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12855 | 1 |
| B | 0 | 19705 | 1 |
| C | 0 | 17215 | 1 |
| D | 0 | 21726 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6247 | 23 | 0.368177% |
| B | 6248 | 984 | 15.749040% |
| C | 6248 | 428 | 6.850192% |
| D | 6248 | 440 | 7.042254% |
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 | 7327 | 6248 | 4 | 4 | 0.05% | 0.06% |  |
| B | 7328 | 6249 | 801 | 801 | 10.93% | 12.82% |  |
| C | 7328 | 6249 | 398 | 398 | 5.43% | 6.37% |  |
| D | 7328 | 6249 | 432 | 432 | 5.90% | 6.91% |  |
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 | 53856 | 315.68 | 678 | 661 | 168.5 |
| A | 5 | 113 | 39525 | 230.64 | 678 | 661 | 168.5 |
| A | 13 | 254 | 10972 | 61.19 | 678 | 661 | 168.5 |
| B | 10 | 16 | 2482683 | 18797.2 | 612 | 589 | 132.0 |
| B | 10 | 32 | 53158 | 398.11 | 612 | 589 | 132.0 |
| B | 5 | 185 | 50244 | 376.04 | 612 | 589 | 132.0 |
| C | 15 | 198 | 1531649 | 8763.03 | 637 | 632 | 174.7 |
| C | 14 | 254 | 135216 | 770.31 | 637 | 632 | 174.7 |
| C | 9 | 38 | 61158 | 346.43 | 637 | 632 | 174.7 |
| D | 12 | 33 | 1574712 | 8691.89 | 630 | 599 | 181.1 |
| D | 15 | 142 | 1229719 | 6786.92 | 630 | 599 | 181.1 |
| D | 7 | 96 | 273006 | 1504.17 | 630 | 599 | 181.1 |
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 |  |