Observation information
- date-obs: 2025-10-08
- time-obs: 10:28:51.471500000
- date-end: 2025-10-08
- time-end: 12:28:46.454100000
- obs_id: C09_004T08_9000006514
- exposure: 2156.38974518
- 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_54256cztM0_level2.fits
| modeM0/AS1C09_004T08_9000006514_54256cztM0_level2_quad_clean.evt
|
| Size (bytes) | 722,715,840 | 77,258,880 |
| Size | 689.2 MB
| 73.7 MB
|
| Events in quadrant A | 5,422,630 | 533,343 |
| Events in quadrant B | 3,335,415 | 658,052 |
| Events in quadrant C | 4,835,448 | 530,022 |
| Events in quadrant D | 12,678,195 | 185,170 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20493 | 1 |
| B | 0 | 14135 | 1 |
| C | 0 | 18812 | 1 |
| D | 0 | 41955 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 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 | 6195 | 955 | 15.415658% |
| B | 6196 | 91 | 1.468689% |
| C | 6196 | 504 | 8.134280% |
| D | 6196 | 4154 | 67.043254% |
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 | 7195 | 6195 | 740 | 740 | 10.28% | 11.95% |  |
| B | 7196 | 6197 | 9 | 9 | 0.13% | 0.15% |  |
| C | 7196 | 6197 | 394 | 394 | 5.48% | 6.36% |  |
| D | 7195 | 6195 | 3848 | 3848 | 53.48% | 62.11% |  |
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 | 1407576 | 9262.28 | 610 | 594 | 151.9 |
| A | 12 | 17 | 1141301 | 7509.37 | 610 | 594 | 151.9 |
| A | 15 | 174 | 175631 | 1152.28 | 610 | 594 | 151.9 |
| B | 7 | 0 | 360127 | 2590.67 | 652 | 629 | 138.8 |
| B | 0 | 213 | 111559 | 799.4 | 652 | 629 | 138.8 |
| B | 8 | 234 | 68362 | 488.11 | 652 | 629 | 138.8 |
| C | 1 | 29 | 1541509 | 9051.87 | 613 | 605 | 170.2 |
| C | 15 | 198 | 302399 | 1772.86 | 613 | 605 | 170.2 |
| C | 12 | 249 | 144510 | 845.35 | 613 | 605 | 170.2 |
| D | 8 | 176 | 10780078 | 110189.53 | 333 | 318 | 97.8 |
| D | 12 | 2 | 196069 | 2000.95 | 333 | 318 | 97.8 |
| D | 12 | 3 | 82408 | 839.12 | 333 | 318 | 97.8 |
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 |  |