Observation information
- date-obs: 2025-10-08
- time-obs: 08:42:48.486900000
- date-end: 2025-10-08
- time-end: 10:44:19.469100000
- obs_id: C09_004T08_9000006514
- exposure: 4095.09947753
- 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_54255cztM0_level2.fits
| modeM0/AS1C09_004T08_9000006514_54255cztM0_level2_quad_clean.evt
|
| Size (bytes) | 616,098,240 | 84,208,320 |
| Size | 587.6 MB
| 80.3 MB
|
| Events in quadrant A | 4,971,702 | 565,104 |
| Events in quadrant B | 3,102,478 | 670,221 |
| Events in quadrant C | 5,499,493 | 517,303 |
| Events in quadrant D | 8,753,317 | 366,075 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18996 | 2 |
| B | 0 | 13455 | 2 |
| C | 0 | 20700 | 2 |
| D | 0 | 30233 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6171 | 742 | 12.023983% |
| B | 6172 | 94 | 1.523007% |
| C | 6172 | 744 | 12.054439% |
| D | 6172 | 2156 | 34.931951% |
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 | 7291 | 6173 | 578 | 578 | 7.93% | 9.36% |  |
| B | 7292 | 6174 | 16 | 16 | 0.22% | 0.26% |  |
| C | 7292 | 6173 | 622 | 622 | 8.53% | 10.08% |  |
| D | 7291 | 6173 | 1965 | 1965 | 26.95% | 31.83% |  |
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 | 7 | 29 | 1391848 | 8856.45 | 634 | 620 | 157.1 |
| A | 12 | 17 | 705850 | 4489.44 | 634 | 620 | 157.1 |
| A | 12 | 194 | 92896 | 587.42 | 634 | 620 | 157.1 |
| B | 7 | 0 | 144835 | 1032.59 | 656 | 635 | 139.6 |
| B | 0 | 213 | 126649 | 902.36 | 656 | 635 | 139.6 |
| B | 8 | 234 | 47703 | 337.05 | 656 | 635 | 139.6 |
| C | 1 | 29 | 2565116 | 15475.33 | 601 | 596 | 165.7 |
| C | 15 | 198 | 153920 | 925.22 | 601 | 596 | 165.7 |
| C | 12 | 2 | 112732 | 676.67 | 601 | 596 | 165.7 |
| D | 8 | 176 | 5930031 | 40854.11 | 504 | 481 | 145.1 |
| D | 12 | 2 | 200304 | 1376.76 | 504 | 481 | 145.1 |
| D | 10 | 181 | 127859 | 877.62 | 504 | 481 | 145.1 |
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 |  |