Observation information
- date-obs: 2025-10-09
- time-obs: 00:18:08.355000000
- date-end: 2025-10-09
- time-end: 02:23:44.323300000
- obs_id: C09_004T08_9000006514
- exposure: 3469.72239828
- 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_54264cztM0_level2.fits
| modeM0/AS1C09_004T08_9000006514_54264cztM0_level2_quad_clean.evt
|
| Size (bytes) | 760,576,320 | 81,250,560 |
| Size | 725.3 MB
| 77.5 MB
|
| Events in quadrant A | 4,818,986 | 565,126 |
| Events in quadrant B | 5,468,059 | 628,830 |
| Events in quadrant C | 7,010,675 | 497,462 |
| Events in quadrant D | 10,335,171 | 300,106 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19314 | 1 |
| B | 0 | 20924 | 2 |
| C | 0 | 25542 | 1 |
| D | 0 | 35336 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6717 | 664 | 9.885365% |
| B | 6716 | 554 | 8.248958% |
| C | 6716 | 1220 | 18.165575% |
| D | 6716 | 3343 | 49.776653% |
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 | 7537 | 6717 | 567 | 567 | 7.52% | 8.44% |  |
| B | 7536 | 6717 | 336 | 336 | 4.46% | 5.00% |  |
| C | 7536 | 6717 | 1169 | 1169 | 15.51% | 17.40% |  |
| D | 7535 | 6716 | 2840 | 2840 | 37.69% | 42.29% |  |
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 | 1800694 | 11025.26 | 660 | 645 | 163.3 |
| A | 0 | 8 | 198756 | 1213.43 | 660 | 645 | 163.3 |
| A | 15 | 174 | 97017 | 590.28 | 660 | 645 | 163.3 |
| B | 5 | 185 | 1567110 | 10843.9 | 677 | 653 | 144.5 |
| B | 0 | 213 | 339692 | 2347.02 | 677 | 653 | 144.5 |
| B | 5 | 236 | 294795 | 2036.22 | 677 | 653 | 144.5 |
| C | 1 | 29 | 3011700 | 17611.61 | 618 | 610 | 171.0 |
| C | 1 | 241 | 603547 | 3526.53 | 618 | 610 | 171.0 |
| C | 15 | 215 | 419156 | 2448.04 | 618 | 610 | 171.0 |
| D | 8 | 176 | 8212962 | 64417.13 | 443 | 422 | 127.5 |
| D | 10 | 181 | 163415 | 1278.48 | 443 | 422 | 127.5 |
| D | 3 | 144 | 87537 | 683.31 | 443 | 422 | 127.5 |
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 |  |