Observation information
- date-obs: 2025-10-06
- time-obs: 16:41:18.836500000
- date-end: 2025-10-06
- time-end: 18:50:57.819500000
- obs_id: C09_004T08_9000006514
- exposure: 1684.83548182
- 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_54230cztM0_level2.fits
| modeM0/AS1C09_004T08_9000006514_54230cztM0_level2_quad_clean.evt
|
| Size (bytes) | 963,495,360 | 89,274,240 |
| Size | 918.9 MB
| 85.1 MB
|
| Events in quadrant A | 8,222,384 | 582,490 |
| Events in quadrant B | 5,188,713 | 781,178 |
| Events in quadrant C | 5,297,052 | 658,830 |
| Events in quadrant D | 16,354,181 | 139,252 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30031 | 0 |
| B | 0 | 20892 | 0 |
| C | 0 | 21280 | 0 |
| D | 0 | 53958 | 4 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7779 | 1772 | 22.779278% |
| B | 7779 | 317 | 4.075074% |
| C | 7780 | 476 | 6.118252% |
| D | 7779 | 6202 | 79.727471% |
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 | 7779 | 7779 | 1365 | 1365 | 17.55% | 17.55% |  |
| B | 7779 | 7779 | 151 | 151 | 1.94% | 1.94% |  |
| C | 7780 | 7780 | 373 | 373 | 4.79% | 4.79% |  |
| D | 7779 | 7779 | 5002 | 5002 | 64.30% | 64.30% |  |
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 | 12 | 17 | 3173155 | 17912.17 | 711 | 693 | 177.1 |
| A | 5 | 243 | 824557 | 4651.65 | 711 | 693 | 177.1 |
| A | 12 | 194 | 401695 | 2264.11 | 711 | 693 | 177.1 |
| B | 4 | 171 | 809747 | 4771.3 | 800 | 774 | 169.5 |
| B | 5 | 236 | 461610 | 2718.0 | 800 | 774 | 169.5 |
| B | 10 | 247 | 224285 | 1318.26 | 800 | 774 | 169.5 |
| C | 15 | 215 | 914528 | 4316.28 | 773 | 764 | 211.7 |
| C | 1 | 241 | 407639 | 1921.92 | 773 | 764 | 211.7 |
| C | 15 | 216 | 286795 | 1351.1 | 773 | 764 | 211.7 |
| D | 8 | 176 | 14652633 | 173761.16 | 290 | 276 | 84.3 |
| D | 2 | 172 | 123714 | 1463.84 | 290 | 276 | 84.3 |
| D | 3 | 12 | 88315 | 1044.05 | 290 | 276 | 84.3 |
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 |  |