Observation information
- date-obs: 2025-06-22
- time-obs: 06:54:53.323100000
- date-end: 2025-06-22
- time-end: 11:55:15.283900000
- obs_id: C09_011T07_9000006480
- exposure: 14670.1276375
- 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_011T07_9000006480_52651cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52651cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,448,314,560 | 222,246,720 |
| Size | 1.3 GB
| 212.0 MB
|
| Events in quadrant A | 10,177,624 | 1,488,378 |
| Events in quadrant B | 12,852,872 | 1,498,648 |
| Events in quadrant C | 11,812,028 | 1,404,042 |
| Events in quadrant D | 17,465,142 | 1,171,793 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 346 | 0 |
| B | 0 | 346 | 0 |
| C | 0 | 346 | 0 |
| D | 0 | 346 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 41741 | 3 |
| B | 0 | 49921 | 3 |
| C | 0 | 47167 | 3 |
| D | 0 | 63684 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 16883 | 743 | 4.400877% |
| B | 16884 | 1776 | 10.518834% |
| C | 16884 | 928 | 5.496328% |
| D | 16884 | 2508 | 14.854300% |
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 | 17452 | 16885 | 325 | 325 | 1.86% | 1.92% |  |
| B | 17453 | 16884 | 1127 | 1127 | 6.46% | 6.67% |  |
| C | 17453 | 16886 | 678 | 678 | 3.88% | 4.02% |  |
| D | 17453 | 16884 | 2164 | 2164 | 12.40% | 12.82% |  |
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 | 8 | 47 | 452387 | 1043.86 | 1734 | 1690 | 431.8 |
| A | 14 | 239 | 436421 | 1006.88 | 1734 | 1690 | 431.8 |
| A | 3 | 114 | 334268 | 770.28 | 1734 | 1690 | 431.8 |
| B | 12 | 32 | 2634194 | 7598.93 | 1656 | 1601 | 346.4 |
| B | 10 | 254 | 737024 | 2122.78 | 1656 | 1601 | 346.4 |
| B | 10 | 247 | 644280 | 1855.08 | 1656 | 1601 | 346.4 |
| C | 15 | 144 | 1264170 | 2751.71 | 1666 | 1649 | 458.8 |
| C | 13 | 3 | 976748 | 2125.26 | 1666 | 1649 | 458.8 |
| C | 15 | 248 | 926156 | 2015.0 | 1666 | 1649 | 458.8 |
| D | 1 | 7 | 2618405 | 5699.56 | 1603 | 1531 | 459.1 |
| D | 6 | 42 | 2082432 | 4532.21 | 1603 | 1531 | 459.1 |
| D | 8 | 176 | 1899298 | 4133.34 | 1603 | 1531 | 459.1 |
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 |  |