Observation information
- date-obs: 2025-10-04
- time-obs: 09:16:11.305900000
- date-end: 2025-10-04
- time-end: 11:18:58.289100000
- obs_id: C09_004T08_9000006514
- exposure: 5447.40749323
- 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_54196cztM0_level2.fits
| modeM0/AS1C09_004T08_9000006514_54196cztM0_level2_quad_clean.evt
|
| Size (bytes) | 495,480,960 | 90,665,280 |
| Size | 472.5 MB
| 86.5 MB
|
| Events in quadrant A | 3,792,073 | 618,228 |
| Events in quadrant B | 3,717,494 | 677,030 |
| Events in quadrant C | 4,607,241 | 517,141 |
| Events in quadrant D | 5,738,588 | 496,341 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15339 | 1 |
| B | 0 | 15154 | 1 |
| C | 0 | 18251 | 1 |
| D | 0 | 21368 | 6 |
| 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 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6252 | 196 | 3.134997% |
| B | 6252 | 104 | 1.663468% |
| C | 6253 | 781 | 12.490005% |
| D | 6252 | 799 | 12.779910% |
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 | 7367 | 6252 | 125 | 125 | 1.70% | 2.00% |  |
| B | 7367 | 6252 | 37 | 37 | 0.50% | 0.59% |  |
| C | 7368 | 6253 | 733 | 733 | 9.95% | 11.72% |  |
| D | 7366 | 6252 | 751 | 751 | 10.20% | 12.01% |  |
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 | 15 | 174 | 430541 | 2618.01 | 672 | 658 | 164.2 |
| A | 11 | 3 | 330666 | 2009.77 | 672 | 658 | 164.2 |
| A | 0 | 8 | 102139 | 618.02 | 672 | 658 | 164.2 |
| B | 15 | 20 | 543285 | 3858.14 | 664 | 643 | 140.6 |
| B | 4 | 171 | 201135 | 1425.48 | 664 | 643 | 140.6 |
| B | 5 | 185 | 108289 | 765.35 | 664 | 643 | 140.6 |
| C | 15 | 215 | 1240616 | 7389.54 | 612 | 606 | 167.8 |
| C | 15 | 216 | 481239 | 2864.22 | 612 | 606 | 167.8 |
| C | 14 | 254 | 135570 | 804.29 | 612 | 606 | 167.8 |
| D | 8 | 176 | 2971224 | 16991.54 | 617 | 588 | 174.8 |
| D | 3 | 12 | 119040 | 677.53 | 617 | 588 | 174.8 |
| D | 3 | 144 | 47865 | 270.42 | 617 | 588 | 174.8 |
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 |  |