Observation information
- date-obs: 2026-03-07
- time-obs: 13:13:40.585200000
- date-end: 2026-03-07
- time-end: 16:40:30.531400000
- obs_id: A14_060T01_9000006556
- exposure: 9983.97129953
- 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_56487cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56487cztM0_level2_quad_clean.evt
|
| Size (bytes) | 790,243,200 | 152,789,760 |
| Size | 753.6 MB
| 145.7 MB
|
| Events in quadrant A | 8,386,417 | 967,218 |
| Events in quadrant B | 5,307,756 | 1,096,108 |
| Events in quadrant C | 7,089,111 | 906,663 |
| Events in quadrant D | 7,617,508 | 895,460 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32598 | 2 |
| B | 0 | 23589 | 3 |
| C | 0 | 29351 | 2 |
| D | 0 | 30116 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 224 | 0 |
| B | 0 | 224 | 0 |
| C | 0 | 224 | 0 |
| D | 0 | 224 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 10985 | 687 | 6.253983% |
| B | 10984 | 98 | 0.892207% |
| C | 10985 | 926 | 8.429677% |
| D | 10985 | 442 | 4.023669% |
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 | 12410 | 10987 | 584 | 584 | 4.71% | 5.32% |  |
| B | 12409 | 10986 | 15 | 15 | 0.12% | 0.14% |  |
| C | 12409 | 10986 | 820 | 820 | 6.61% | 7.46% |  |
| D | 12410 | 10987 | 384 | 384 | 3.09% | 3.50% |  |
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 | 1744881 | 6098.54 | 1142 | 1113 | 285.9 |
| A | 0 | 8 | 639545 | 2232.81 | 1142 | 1113 | 285.9 |
| A | 4 | 159 | 364134 | 1269.61 | 1142 | 1113 | 285.9 |
| B | 0 | 63 | 217596 | 868.09 | 1161 | 1118 | 249.4 |
| B | 4 | 171 | 81416 | 322.0 | 1161 | 1118 | 249.4 |
| B | 10 | 247 | 77155 | 304.91 | 1161 | 1118 | 249.4 |
| C | 15 | 230 | 2140967 | 7280.39 | 1078 | 1071 | 293.9 |
| C | 6 | 223 | 253530 | 858.92 | 1078 | 1071 | 293.9 |
| C | 12 | 252 | 177884 | 601.56 | 1078 | 1071 | 293.9 |
| D | 12 | 4 | 792992 | 2512.57 | 1109 | 1061 | 315.2 |
| D | 11 | 176 | 734309 | 2326.38 | 1109 | 1061 | 315.2 |
| D | 3 | 12 | 454080 | 1437.3 | 1109 | 1061 | 315.2 |
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 |  |