Observation information
- date-obs: 2026-03-10
- time-obs: 20:34:21.930200000
- date-end: 2026-03-10
- time-end: 22:41:22.904800000
- obs_id: A14_060T01_9000006556
- exposure: 5933.1711151
- 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_56536cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56536cztM0_level2_quad_clean.evt
|
| Size (bytes) | 436,985,280 | 95,189,760 |
| Size | 416.7 MB
| 90.8 MB
|
| Events in quadrant A | 3,769,250 | 627,061 |
| Events in quadrant B | 3,442,127 | 687,805 |
| Events in quadrant C | 3,672,128 | 590,957 |
| Events in quadrant D | 4,799,441 | 533,679 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15508 | 2 |
| B | 0 | 14481 | 2 |
| C | 0 | 15413 | 2 |
| D | 0 | 18734 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| 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 | 6339 | 139 | 2.192775% |
| B | 6339 | 83 | 1.309355% |
| C | 6339 | 232 | 3.659883% |
| D | 6339 | 457 | 7.209339% |
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 | 7594 | 6340 | 95 | 95 | 1.25% | 1.50% |  |
| B | 7594 | 6340 | 36 | 36 | 0.47% | 0.57% |  |
| C | 7594 | 6340 | 218 | 218 | 2.87% | 3.44% |  |
| D | 7594 | 6340 | 407 | 407 | 5.36% | 6.42% |  |
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 | 249 | 511859 | 2962.51 | 697 | 679 | 172.5 |
| A | 4 | 95 | 145979 | 842.07 | 697 | 679 | 172.5 |
| A | 13 | 153 | 140054 | 807.74 | 697 | 679 | 172.5 |
| B | 5 | 172 | 152357 | 1012.9 | 701 | 678 | 149.7 |
| B | 4 | 171 | 140811 | 935.8 | 701 | 678 | 149.7 |
| B | 10 | 247 | 133393 | 886.26 | 701 | 678 | 149.7 |
| C | 12 | 252 | 755441 | 4057.38 | 674 | 668 | 186.0 |
| C | 6 | 223 | 234219 | 1255.48 | 674 | 668 | 186.0 |
| C | 14 | 254 | 11718 | 59.4 | 674 | 668 | 186.0 |
| D | 2 | 249 | 1652324 | 8826.14 | 653 | 625 | 187.1 |
| D | 8 | 160 | 146295 | 778.41 | 653 | 625 | 187.1 |
| D | 8 | 240 | 114087 | 606.3 | 653 | 625 | 187.1 |
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 |  |