Observation information
- date-obs: 2026-03-07
- time-obs: 19:39:22.507200000
- date-end: 2026-03-07
- time-end: 21:51:21.481000000
- obs_id: A14_060T01_9000006556
- exposure: 6140.15952879
- 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_56491cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56491cztM0_level2_quad_clean.evt
|
| Size (bytes) | 417,389,760 | 96,033,600 |
| Size | 398.1 MB
| 91.6 MB
|
| Events in quadrant A | 4,019,000 | 622,531 |
| Events in quadrant B | 3,387,535 | 682,150 |
| Events in quadrant C | 3,827,175 | 593,429 |
| Events in quadrant D | 3,718,088 | 562,090 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16430 | 2 |
| B | 0 | 14451 | 2 |
| C | 0 | 16023 | 2 |
| D | 0 | 15398 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6410 | 154 | 2.402496% |
| B | 6410 | 127 | 1.981279% |
| C | 6410 | 240 | 3.744150% |
| D | 6410 | 84 | 1.310452% |
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 | 7550 | 6411 | 126 | 126 | 1.67% | 1.97% |  |
| B | 7550 | 6411 | 54 | 54 | 0.72% | 0.84% |  |
| C | 7550 | 6410 | 204 | 204 | 2.70% | 3.18% |  |
| D | 7550 | 6411 | 75 | 75 | 0.99% | 1.17% |  |
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 | 845657 | 4861.16 | 699 | 683 | 173.8 |
| A | 7 | 64 | 128098 | 733.02 | 699 | 683 | 173.8 |
| A | 4 | 206 | 83433 | 476.06 | 699 | 683 | 173.8 |
| B | 4 | 206 | 136513 | 917.88 | 700 | 678 | 148.0 |
| B | 4 | 171 | 125022 | 840.23 | 700 | 678 | 148.0 |
| B | 0 | 63 | 101384 | 680.5 | 700 | 678 | 148.0 |
| C | 15 | 230 | 408370 | 2200.86 | 670 | 666 | 185.2 |
| C | 13 | 3 | 288494 | 1553.75 | 670 | 666 | 185.2 |
| C | 6 | 223 | 179998 | 968.07 | 670 | 666 | 185.2 |
| D | 3 | 12 | 268919 | 1390.53 | 673 | 642 | 192.9 |
| D | 2 | 249 | 139139 | 717.86 | 673 | 642 | 192.9 |
| D | 9 | 49 | 115632 | 596.01 | 673 | 642 | 192.9 |
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 |  |