Observation information
- date-obs: 2026-03-08
- time-obs: 20:01:02.316600000
- date-end: 2026-03-08
- time-end: 22:06:47.293100000
- obs_id: A14_060T01_9000006556
- exposure: 5948.10855865
- 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_56506cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56506cztM0_level2_quad_clean.evt
|
| Size (bytes) | 473,290,560 | 94,383,360 |
| Size | 451.4 MB
| 90.0 MB
|
| Events in quadrant A | 5,259,395 | 601,774 |
| Events in quadrant B | 4,073,571 | 673,696 |
| Events in quadrant C | 3,333,106 | 597,485 |
| Events in quadrant D | 4,364,201 | 544,886 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20002 | 2 |
| B | 0 | 16296 | 4 |
| C | 0 | 14418 | 2 |
| D | 0 | 17341 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6305 | 346 | 5.487708% |
| B | 6304 | 225 | 3.569162% |
| C | 6304 | 118 | 1.871827% |
| D | 6304 | 255 | 4.045051% |
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 | 7480 | 6306 | 303 | 303 | 4.05% | 4.80% |  |
| B | 7479 | 6305 | 113 | 113 | 1.51% | 1.79% |  |
| C | 7479 | 6305 | 101 | 101 | 1.35% | 1.60% |  |
| D | 7479 | 6304 | 242 | 242 | 3.24% | 3.84% |  |
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 | 1135211 | 6646.68 | 688 | 670 | 170.7 |
| A | 0 | 12 | 761063 | 4454.74 | 688 | 670 | 170.7 |
| A | 4 | 95 | 478344 | 2798.44 | 688 | 670 | 170.7 |
| B | 4 | 206 | 920240 | 6199.79 | 692 | 668 | 148.3 |
| B | 0 | 213 | 118130 | 791.93 | 692 | 668 | 148.3 |
| B | 4 | 171 | 61142 | 407.72 | 692 | 668 | 148.3 |
| C | 14 | 254 | 314167 | 1676.25 | 674 | 666 | 187.0 |
| C | 13 | 3 | 194462 | 1036.2 | 674 | 666 | 187.0 |
| C | 12 | 252 | 96855 | 514.31 | 674 | 666 | 187.0 |
| D | 2 | 249 | 907753 | 4811.35 | 659 | 629 | 188.5 |
| D | 12 | 16 | 488727 | 2588.85 | 659 | 629 | 188.5 |
| D | 3 | 12 | 116322 | 613.63 | 659 | 629 | 188.5 |
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 |  |