Observation information
- date-obs: 2026-03-05
- time-obs: 14:49:48.931100000
- date-end: 2026-03-05
- time-end: 17:51:22.895500000
- obs_id: A14_060T01_9000006556
- exposure: 7556.4984107
- sourceid: NGC1437A
- observer: Mpati
- ra_pnt: 55.79948
- dec_pnt: -36.29873
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_060T01_9000006556_56458cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56458cztM0_level2_quad_clean.evt
|
| Size (bytes) | 909,273,600 | 124,836,480 |
| Size | 867.2 MB
| 119.1 MB
|
| Events in quadrant A | 9,961,777 | 707,873 |
| Events in quadrant B | 9,238,327 | 836,590 |
| Events in quadrant C | 6,363,359 | 812,557 |
| Events in quadrant D | 7,366,362 | 769,218 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 36019 | 2 |
| B | 0 | 34143 | 2 |
| C | 0 | 25682 | 2 |
| D | 0 | 28444 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 192 | 0 |
| B | 0 | 192 | 0 |
| C | 0 | 192 | 0 |
| D | 0 | 192 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 9419 | 1961 | 20.819620% |
| B | 9420 | 1372 | 14.564756% |
| C | 9420 | 486 | 5.159236% |
| D | 9419 | 406 | 4.310436% |
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 | 10894 | 9421 | 1886 | 1886 | 17.31% | 20.02% |  |
| B | 10895 | 9422 | 844 | 844 | 7.75% | 8.96% |  |
| C | 10895 | 9422 | 469 | 469 | 4.30% | 4.98% |  |
| D | 10894 | 9421 | 435 | 435 | 3.99% | 4.62% |  |
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 | 12 | 3 | 4717095 | 20505.17 | 927 | 906 | 230.0 |
| A | 12 | 194 | 636277 | 2762.48 | 927 | 906 | 230.0 |
| A | 0 | 8 | 381854 | 1656.3 | 927 | 906 | 230.0 |
| B | 5 | 172 | 4368544 | 21149.99 | 958 | 923 | 206.5 |
| B | 4 | 206 | 426448 | 2060.58 | 958 | 923 | 206.5 |
| B | 0 | 63 | 299401 | 1445.37 | 958 | 923 | 206.5 |
| C | 12 | 254 | 1624868 | 6107.02 | 971 | 961 | 265.9 |
| C | 12 | 252 | 292097 | 1094.87 | 971 | 961 | 265.9 |
| C | 13 | 3 | 262024 | 981.78 | 971 | 961 | 265.9 |
| D | 9 | 49 | 1320526 | 4836.36 | 966 | 922 | 272.9 |
| D | 12 | 4 | 1164123 | 4263.14 | 966 | 922 | 272.9 |
| D | 8 | 129 | 189269 | 690.29 | 966 | 922 | 272.9 |
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 |  |