Observation information
- date-obs: 2025-06-15
- time-obs: 01:03:36.693100000
- date-end: 2025-06-15
- time-end: 03:24:12.676600000
- obs_id: C09_011T06_9000006478
- exposure: 4559.17313606
- 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_9000006478_52542cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52542cztM0_level2_quad_clean.evt
|
| Size (bytes) | 682,329,600 | 90,069,120 |
| Size | 650.7 MB
| 85.9 MB
|
| Events in quadrant A | 3,590,044 | 633,097 |
| Events in quadrant B | 4,750,099 | 654,896 |
| Events in quadrant C | 5,224,186 | 580,991 |
| Events in quadrant D | 11,170,452 | 387,211 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15769 | 2 |
| B | 0 | 18886 | 2 |
| C | 0 | 20440 | 3 |
| D | 0 | 37876 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6748 | 146 | 2.163604% |
| B | 6748 | 453 | 6.713100% |
| C | 6747 | 546 | 8.092486% |
| D | 6747 | 2532 | 37.527790% |
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 | 7898 | 6749 | 97 | 97 | 1.23% | 1.44% |  |
| B | 7898 | 6749 | 237 | 237 | 3.00% | 3.51% |  |
| C | 7897 | 6748 | 410 | 410 | 5.19% | 6.08% |  |
| D | 7896 | 6747 | 2402 | 2402 | 30.42% | 35.60% |  |
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 | 3 | 46 | 204891 | 1174.76 | 691 | 674 | 173.8 |
| A | 12 | 80 | 178599 | 1023.51 | 691 | 674 | 173.8 |
| A | 6 | 233 | 96147 | 549.21 | 691 | 674 | 173.8 |
| B | 10 | 44 | 583475 | 4070.72 | 676 | 654 | 143.2 |
| B | 0 | 213 | 470641 | 3282.63 | 676 | 654 | 143.2 |
| B | 4 | 81 | 195073 | 1357.92 | 676 | 654 | 143.2 |
| C | 13 | 3 | 1003358 | 5533.81 | 650 | 644 | 181.2 |
| C | 15 | 248 | 995399 | 5489.89 | 650 | 644 | 181.2 |
| C | 12 | 254 | 296559 | 1633.11 | 650 | 644 | 181.2 |
| D | 6 | 42 | 4616932 | 28890.29 | 557 | 534 | 159.8 |
| D | 12 | 17 | 1873998 | 11724.49 | 557 | 534 | 159.8 |
| D | 8 | 176 | 1051576 | 6577.62 | 557 | 534 | 159.8 |
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 |  |