Observation information
- date-obs: 2026-03-07
- time-obs: 23:04:22.479300000
- date-end: 2026-03-08
- time-end: 01:23:04.446000000
- obs_id: A14_060T01_9000006556
- exposure: 6366.89492315
- 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_56493cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56493cztM0_level2_quad_clean.evt
|
| Size (bytes) | 431,660,160 | 99,584,640 |
| Size | 411.7 MB
| 95.0 MB
|
| Events in quadrant A | 4,480,837 | 636,924 |
| Events in quadrant B | 3,301,308 | 717,132 |
| Events in quadrant C | 3,282,200 | 627,840 |
| Events in quadrant D | 4,395,671 | 567,851 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17944 | 2 |
| B | 0 | 14431 | 2 |
| C | 0 | 14662 | 2 |
| D | 0 | 17736 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6673 | 257 | 3.851341% |
| B | 6673 | 76 | 1.138918% |
| C | 6673 | 110 | 1.648434% |
| D | 6673 | 293 | 4.390829% |
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 | 7823 | 6674 | 216 | 216 | 2.76% | 3.24% |  |
| B | 7823 | 6674 | 23 | 23 | 0.29% | 0.34% |  |
| C | 7823 | 6673 | 58 | 58 | 0.74% | 0.87% |  |
| D | 7823 | 6674 | 257 | 257 | 3.29% | 3.85% |  |
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 | 4 | 95 | 979084 | 5446.89 | 730 | 711 | 179.6 |
| A | 3 | 14 | 206037 | 1143.11 | 730 | 711 | 179.6 |
| A | 0 | 8 | 123518 | 683.7 | 730 | 711 | 179.6 |
| B | 4 | 206 | 109020 | 685.19 | 739 | 712 | 158.1 |
| B | 4 | 190 | 34218 | 211.97 | 739 | 712 | 158.1 |
| B | 0 | 213 | 28309 | 174.59 | 739 | 712 | 158.1 |
| C | 13 | 3 | 216756 | 1089.49 | 722 | 715 | 198.3 |
| C | 6 | 223 | 124058 | 622.02 | 722 | 715 | 198.3 |
| C | 15 | 230 | 35438 | 175.11 | 722 | 715 | 198.3 |
| D | 11 | 176 | 701055 | 3505.71 | 703 | 672 | 199.8 |
| D | 2 | 249 | 334292 | 1669.91 | 703 | 672 | 199.8 |
| D | 3 | 12 | 211114 | 1053.35 | 703 | 672 | 199.8 |
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 |  |