Observation information
- date-obs: 2025-07-09
- time-obs: 03:01:52.306800000
- date-end: 2025-07-09
- time-end: 05:12:23.011300000
- obs_id: C09_011T06_9000006484
- exposure: 306.466440558
- 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_011T06_9000006484_52899cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006484_52899cztM0_level2_quad_clean.evt
|
| Size (bytes) | 913,752,000 | 62,988,480 |
| Size | 871.4 MB
| 60.1 MB
|
| Events in quadrant A | 15,024,230 | 181,796 |
| Events in quadrant B | 4,969,542 | 663,708 |
| Events in quadrant C | 6,514,915 | 30,135 |
| Events in quadrant D | 6,769,162 | 542,605 |
Level1 data integrity
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 49311 | 2 |
| B | 0 | 19830 | 4 |
| C | 0 | 24380 | 2 |
| D | 0 | 25166 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7007 | 5283 | 75.396033% |
| B | 7006 | 474 | 6.765629% |
| C | 7006 | 6710 | 95.775050% |
| D | 7006 | 986 | 14.073651% |
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 | 7831 | 7006 | 5161 | 5161 | 65.90% | 73.67% |  |
| B | 7831 | 7006 | 336 | 336 | 4.29% | 4.80% |  |
| C | 7830 | 7005 | 1007 | 1007 | 12.86% | 14.38% |  |
| D | 7831 | 7007 | 992 | 992 | 12.67% | 14.16% |  |
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 | 12434874 | 121111.56 | 400 | 390 | 102.7 |
| A | 7 | 250 | 358832 | 3491.22 | 400 | 390 | 102.7 |
| A | 0 | 8 | 182231 | 1771.13 | 400 | 390 | 102.7 |
| B | 10 | 254 | 584526 | 3892.12 | 706 | 681 | 150.0 |
| B | 5 | 172 | 418720 | 2786.8 | 706 | 681 | 150.0 |
| B | 1 | 255 | 316069 | 2102.49 | 706 | 681 | 150.0 |
| C | 15 | 198 | 5861363 | 316710.2 | 61 | 61 | 18.5 |
| C | 7 | 80 | 179144 | 9676.59 | 61 | 61 | 18.5 |
| C | 2 | 12 | 67414 | 3639.36 | 61 | 61 | 18.5 |
| D | 8 | 176 | 2817943 | 14529.93 | 673 | 644 | 193.9 |
| D | 15 | 94 | 349806 | 1800.77 | 673 | 644 | 193.9 |
| D | 7 | 96 | 277723 | 1429.01 | 673 | 644 | 193.9 |
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 |  |