Observation information
- date-obs: 2026-03-08
- time-obs: 09:44:55.396900000
- date-end: 2026-03-08
- time-end: 15:14:18.354200000
- obs_id: A14_060T01_9000006556
- exposure: 17327.8980839
- 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_56501cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56501cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,382,448,960 | 257,846,400 |
| Size | 1.3 GB
| 245.9 MB
|
| Events in quadrant A | 14,069,602 | 1,655,692 |
| Events in quadrant B | 11,403,116 | 1,784,866 |
| Events in quadrant C | 10,010,825 | 1,628,432 |
| Events in quadrant D | 14,253,112 | 1,456,745 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 54691 | 3 |
| B | 0 | 46726 | 3 |
| C | 0 | 43318 | 3 |
| D | 0 | 55104 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 374 | 0 |
| B | 0 | 374 | 0 |
| C | 0 | 374 | 0 |
| D | 0 | 374 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18588 | 1054 | 5.670325% |
| B | 18588 | 983 | 5.288358% |
| C | 18588 | 528 | 2.840542% |
| D | 18589 | 1380 | 7.423745% |
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 | 19763 | 18590 | 607 | 607 | 3.07% | 3.27% |  |
| B | 19763 | 18591 | 479 | 479 | 2.42% | 2.58% |  |
| C | 19763 | 18591 | 357 | 357 | 1.81% | 1.92% |  |
| D | 19764 | 18591 | 1128 | 1128 | 5.71% | 6.07% |  |
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 | 3 | 14 | 1973605 | 3942.94 | 2018 | 1962 | 500.0 |
| A | 4 | 159 | 1944551 | 3884.83 | 2018 | 1962 | 500.0 |
| A | 7 | 64 | 1442065 | 2879.95 | 2018 | 1962 | 500.0 |
| B | 4 | 206 | 1374802 | 3171.42 | 2004 | 1929 | 432.9 |
| B | 4 | 171 | 696997 | 1605.65 | 2004 | 1929 | 432.9 |
| B | 0 | 213 | 694608 | 1600.13 | 2004 | 1929 | 432.9 |
| C | 12 | 252 | 1133089 | 2100.71 | 1967 | 1952 | 538.5 |
| C | 13 | 3 | 654728 | 1212.31 | 1967 | 1952 | 538.5 |
| C | 15 | 230 | 176327 | 323.84 | 1967 | 1952 | 538.5 |
| D | 2 | 249 | 3398303 | 6266.8 | 1927 | 1842 | 542.0 |
| D | 3 | 12 | 1568377 | 2890.41 | 1927 | 1842 | 542.0 |
| D | 5 | 113 | 448967 | 824.99 | 1927 | 1842 | 542.0 |
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 |  |