Observation information
- date-obs: 2025-07-07
- time-obs: 14:48:32.316800000
- date-end: 2025-07-07
- time-end: 16:45:27.302200000
- obs_id: C09_011T08_9000006482
- exposure: 3197.22391731
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C09_011T08_9000006482_52877cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006482_52877cztM0_level2_quad_clean.evt
|
| Size (bytes) | 854,424,000 | 72,843,840 |
| Size | 814.8 MB
| 69.5 MB
|
| Events in quadrant A | 9,780,862 | 320,345 |
| Events in quadrant B | 8,143,146 | 466,095 |
| Events in quadrant C | 6,581,365 | 481,227 |
| Events in quadrant D | 6,647,772 | 507,495 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33267 | 1 |
| B | 0 | 28466 | 1 |
| C | 0 | 23860 | 1 |
| D | 0 | 23977 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6150 | 3050 | 49.593496% |
| B | 6150 | 1875 | 30.487805% |
| C | 6151 | 1076 | 17.493091% |
| D | 6150 | 604 | 9.821138% |
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 | 7015 | 6150 | 2758 | 2758 | 39.32% | 44.85% |  |
| B | 7015 | 6150 | 1527 | 1527 | 21.77% | 24.83% |  |
| C | 7016 | 6151 | 838 | 838 | 11.94% | 13.62% |  |
| D | 7015 | 6150 | 545 | 545 | 7.77% | 8.86% |  |
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 | 9 | 191 | 7380574 | 63105.32 | 469 | 457 | 116.9 |
| A | 12 | 80 | 116681 | 993.8 | 469 | 457 | 116.9 |
| A | 15 | 174 | 92389 | 786.08 | 469 | 457 | 116.9 |
| B | 8 | 3 | 5363822 | 45278.96 | 564 | 545 | 118.4 |
| B | 4 | 81 | 143285 | 1205.07 | 564 | 545 | 118.4 |
| B | 5 | 200 | 75370 | 631.7 | 564 | 545 | 118.4 |
| C | 2 | 12 | 2251971 | 13831.94 | 586 | 578 | 162.8 |
| C | 7 | 80 | 755173 | 4636.02 | 586 | 578 | 162.8 |
| C | 15 | 224 | 480838 | 2950.58 | 586 | 578 | 162.8 |
| D | 8 | 176 | 2234677 | 12602.31 | 618 | 589 | 177.3 |
| D | 8 | 48 | 383492 | 2159.93 | 618 | 589 | 177.3 |
| D | 3 | 12 | 381214 | 2147.08 | 618 | 589 | 177.3 |
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 |  |