Observation information
- date-obs: 2026-03-09
- time-obs: 18:34:22.139100000
- date-end: 2026-03-09
- time-end: 20:38:49.112600000
- obs_id: A14_060T01_9000006556
- exposure: 5220.80830765
- 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_56520cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56520cztM0_level2_quad_clean.evt
|
| Size (bytes) | 644,342,400 | 87,811,200 |
| Size | 614.5 MB
| 83.7 MB
|
| Events in quadrant A | 6,678,233 | 559,237 |
| Events in quadrant B | 3,835,389 | 659,728 |
| Events in quadrant C | 7,180,464 | 495,657 |
| Events in quadrant D | 5,672,837 | 507,113 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24153 | 2 |
| B | 0 | 15673 | 2 |
| C | 0 | 25739 | 2 |
| D | 0 | 21261 | 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 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6261 | 782 | 12.490018% |
| B | 6261 | 209 | 3.338125% |
| C | 6261 | 1222 | 19.517649% |
| D | 6261 | 638 | 10.190065% |
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 | 7456 | 6261 | 690 | 690 | 9.25% | 11.02% |  |
| B | 7456 | 6261 | 101 | 101 | 1.35% | 1.61% |  |
| C | 7456 | 6262 | 1276 | 1276 | 17.11% | 20.38% |  |
| D | 7456 | 6262 | 620 | 620 | 8.32% | 9.90% |  |
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 | 7 | 64 | 2615486 | 15935.81 | 661 | 645 | 164.1 |
| A | 0 | 12 | 877889 | 5346.25 | 661 | 645 | 164.1 |
| A | 4 | 95 | 161914 | 982.83 | 661 | 645 | 164.1 |
| B | 4 | 206 | 667936 | 4550.98 | 684 | 660 | 146.6 |
| B | 7 | 252 | 123929 | 840.72 | 684 | 660 | 146.6 |
| B | 0 | 63 | 89290 | 604.48 | 684 | 660 | 146.6 |
| C | 15 | 230 | 3949252 | 23339.9 | 617 | 615 | 169.2 |
| C | 12 | 252 | 543931 | 3211.47 | 617 | 615 | 169.2 |
| C | 6 | 223 | 157719 | 928.62 | 617 | 615 | 169.2 |
| D | 8 | 129 | 917444 | 5114.07 | 623 | 595 | 179.3 |
| D | 7 | 96 | 730099 | 4069.08 | 623 | 595 | 179.3 |
| D | 2 | 249 | 588826 | 3281.08 | 623 | 595 | 179.3 |
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 |  |