Observation information
- date-obs: 2025-07-03
- time-obs: 23:46:12.247700000
- date-end: 2025-07-08
- time-end: 22:15:24.072000000
- obs_id: C09_011T08_9000006482
- exposure: 22054.3986809
- 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_9000006482cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006482cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,196,434,880 | 890,389,440 |
| Size | 2.0 GB
| 849.1 MB
|
| Events in quadrant A | 11,030,998 | 1,641,640 |
| Events in quadrant B | 11,682,884 | 1,726,766 |
| Events in quadrant C | 13,125,884 | 2,017,942 |
| Events in quadrant D | 10,621,948 | 1,631,765 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1450020 | 0 |
| B | 0 | 1283435 | 0 |
| C | 0 | 871263 | 0 |
| D | 0 | 1187577 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 311 | 0 |
| B | 0 | 311 | 0 |
| C | 0 | 311 | 0 |
| D | 0 | 311 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5898 | 0 |
| B | 0 | 5900 | 0 |
| C | 0 | 5900 | 0 |
| D | 0 | 5900 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 290888 | 107505 | 36.957523% |
| B | 290895 | 79177 | 27.218412% |
| C | 290894 | 27407 | 9.421645% |
| D | 290892 | 60200 | 20.694966% |
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 | 426551 | 287754 | 0 | 0 | 0.00% | 0.00% |  |
| B | 426550 | 290540 | 0 | 0 | 0.00% | 0.00% |  |
| C | 426552 | 290047 | 0 | 0 | 0.00% | 0.00% |  |
| D | 426552 | 286658 | 0 | 0 | 0.00% | 0.00% |  |
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 | 14 | 188 | 12658 | 10.4 | 2912 | 2708 | 956.7 |
| A | 9 | 255 | 11407 | 9.09 | 2912 | 2708 | 956.7 |
| A | 14 | 204 | 10498 | 8.14 | 2912 | 2708 | 956.7 |
| B | 2 | 9 | 13736 | 14.88 | 3114 | 2958 | 724.4 |
| B | 2 | 8 | 12698 | 13.45 | 3114 | 2958 | 724.4 |
| B | 9 | 173 | 9595 | 9.16 | 3114 | 2958 | 724.4 |
| C | 2 | 31 | 10733 | 6.31 | 3517 | 3218 | 1191.2 |
| C | 3 | 202 | 10522 | 6.13 | 3517 | 3218 | 1191.2 |
| C | 15 | 175 | 10462 | 6.08 | 3517 | 3218 | 1191.2 |
| D | 6 | 218 | 14039 | 10.97 | 3051 | 2711 | 1032.4 |
| D | 15 | 11 | 10939 | 7.97 | 3051 | 2711 | 1032.4 |
| D | 3 | 30 | 10178 | 7.23 | 3051 | 2711 | 1032.4 |
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 |  |