Observation information
- date-obs: 2025-11-30
- time-obs: 21:54:41.568400000
- date-end: 2025-12-01
- time-end: 00:12:55.536600000
- obs_id: A14_025T01_9000006530
- exposure: 5287.37584019
- sourceid: NGC 3227
- observer: arijit
- ra_pnt: 155.8774
- dec_pnt: 19.86505
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_025T01_9000006530_55051cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55051cztM0_level2_quad_clean.evt
|
| Size (bytes) | 580,150,080 | 95,621,760 |
| Size | 553.3 MB
| 91.2 MB
|
| Events in quadrant A | 3,256,690 | 660,883 |
| Events in quadrant B | 4,670,337 | 664,601 |
| Events in quadrant C | 3,342,594 | 634,253 |
| Events in quadrant D | 9,671,694 | 456,213 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14900 | 6 |
| B | 0 | 18675 | 4 |
| C | 0 | 14889 | 7 |
| D | 0 | 33535 | 14 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6877 | 81 | 1.177839% |
| B | 6878 | 543 | 7.894737% |
| C | 6877 | 40 | 0.581649% |
| D | 6877 | 1888 | 27.453832% |
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 | 7904 | 6880 | 60 | 60 | 0.76% | 0.87% |  |
| B | 7904 | 6880 | 372 | 372 | 4.71% | 5.41% |  |
| C | 7904 | 6880 | 33 | 33 | 0.42% | 0.48% |  |
| D | 7904 | 6879 | 1650 | 1650 | 20.88% | 23.99% |  |
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 | 0 | 8 | 213297 | 1171.87 | 741 | 724 | 181.4 |
| A | 0 | 250 | 74298 | 405.6 | 741 | 724 | 181.4 |
| A | 7 | 160 | 54835 | 298.3 | 741 | 724 | 181.4 |
| B | 4 | 81 | 1704804 | 11062.4 | 710 | 684 | 154.0 |
| B | 5 | 185 | 109036 | 703.37 | 710 | 684 | 154.0 |
| B | 12 | 111 | 18733 | 117.17 | 710 | 684 | 154.0 |
| C | 13 | 3 | 148812 | 748.4 | 723 | 717 | 197.9 |
| C | 1 | 16 | 127989 | 643.17 | 723 | 717 | 197.9 |
| C | 6 | 223 | 79935 | 400.33 | 723 | 717 | 197.9 |
| D | 11 | 129 | 5947774 | 32742.4 | 631 | 600 | 181.6 |
| D | 11 | 176 | 552390 | 3037.9 | 631 | 600 | 181.6 |
| D | 10 | 181 | 150711 | 826.44 | 631 | 600 | 181.6 |
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 |  |