Observation information
- date-obs: 2025-10-05
- time-obs: 02:33:23.165200000
- date-end: 2025-10-05
- time-end: 04:42:57.145800000
- obs_id: C09_004T08_9000006514
- exposure: 6775.79149389
- sourceid: Blank Sky-8
- observer: tilak
- ra_pnt: 237.3919
- dec_pnt: 70.34809
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C09_004T08_9000006514_54206cztM0_level2.fits
| modeM0/AS1C09_004T08_9000006514_54206cztM0_level2_quad_clean.evt
|
| Size (bytes) | 390,870,720 | 100,008,000 |
| Size | 372.8 MB
| 95.4 MB
|
| Events in quadrant A | 3,099,761 | 650,992 |
| Events in quadrant B | 3,275,497 | 700,239 |
| Events in quadrant C | 3,202,993 | 617,514 |
| Events in quadrant D | 4,347,490 | 573,957 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14553 | 1 |
| B | 0 | 14810 | 1 |
| C | 0 | 14972 | 1 |
| D | 0 | 17733 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6974 | 43 | 0.616576% |
| B | 6974 | 97 | 1.390880% |
| C | 6974 | 73 | 1.046745% |
| D | 6975 | 172 | 2.465950% |
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 | 7774 | 6974 | 8 | 8 | 0.10% | 0.11% |  |
| B | 7774 | 6975 | 31 | 31 | 0.40% | 0.44% |  |
| C | 7774 | 6975 | 54 | 54 | 0.69% | 0.77% |  |
| D | 7775 | 6976 | 163 | 163 | 2.10% | 2.34% |  |
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 | 130 | 51547 | 281.85 | 734 | 715 | 180.4 |
| A | 4 | 3 | 42537 | 231.89 | 734 | 715 | 180.4 |
| A | 15 | 174 | 39708 | 216.2 | 734 | 715 | 180.4 |
| B | 0 | 213 | 77955 | 496.94 | 727 | 700 | 155.5 |
| B | 5 | 185 | 64409 | 409.81 | 727 | 700 | 155.5 |
| B | 5 | 172 | 58535 | 372.02 | 727 | 700 | 155.5 |
| C | 15 | 215 | 94267 | 479.39 | 708 | 701 | 195.2 |
| C | 12 | 252 | 85929 | 436.67 | 708 | 701 | 195.2 |
| C | 9 | 38 | 72877 | 369.8 | 708 | 701 | 195.2 |
| D | 8 | 176 | 1131304 | 5696.12 | 699 | 666 | 198.5 |
| D | 3 | 144 | 129067 | 646.88 | 699 | 666 | 198.5 |
| D | 3 | 12 | 108881 | 545.18 | 699 | 666 | 198.5 |
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 |  |