Observation information
- date-obs: 2025-05-17
- time-obs: 05:35:06.689400000
- date-end: 2025-05-17
- time-end: 08:45:23.661300000
- obs_id: C09_011T07_9000006470
- exposure: 1930.76180321
- 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_9000006470_52114cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52114cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,418,037,120 | 137,338,560 |
| Size | 1.3 GB
| 131.0 MB
|
| Events in quadrant A | 5,974,932 | 1,227,279 |
| Events in quadrant B | 9,408,640 | 1,071,413 |
| Events in quadrant C | 12,252,988 | 960,660 |
| Events in quadrant D | 24,059,890 | 185,433 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 210 | 0 |
| B | 0 | 210 | 0 |
| C | 0 | 210 | 0 |
| D | 0 | 210 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24472 | 2 |
| B | 0 | 35019 | 2 |
| C | 0 | 43706 | 2 |
| D | 0 | 78580 | 9 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 10297 | 256 | 2.486161% |
| B | 10298 | 1440 | 13.983298% |
| C | 10298 | 2220 | 21.557584% |
| D | 10297 | 8613 | 83.645722% |
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 | 11417 | 10299 | 75 | 75 | 0.66% | 0.73% |  |
| B | 11418 | 10300 | 936 | 936 | 8.20% | 9.09% |  |
| C | 11418 | 10300 | 1681 | 1681 | 14.72% | 16.32% |  |
| D | 11418 | 10299 | 7741 | 7741 | 67.80% | 75.16% |  |
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 | 4 | 3 | 448861 | 1418.59 | 1204 | 1179 | 315.6 |
| A | 8 | 43 | 142085 | 446.5 | 1204 | 1179 | 315.6 |
| A | 5 | 240 | 101644 | 318.35 | 1204 | 1179 | 315.6 |
| B | 10 | 44 | 2171354 | 9269.62 | 1083 | 1049 | 234.1 |
| B | 8 | 3 | 793417 | 3384.29 | 1083 | 1049 | 234.1 |
| B | 0 | 170 | 735926 | 3138.74 | 1083 | 1049 | 234.1 |
| C | 15 | 224 | 6159401 | 20056.75 | 1059 | 1048 | 307.0 |
| C | 2 | 239 | 1113919 | 3624.44 | 1059 | 1048 | 307.0 |
| C | 13 | 3 | 283080 | 918.53 | 1059 | 1048 | 307.0 |
| D | 6 | 42 | 12157760 | 68427.51 | 569 | 541 | 177.7 |
| D | 15 | 94 | 6359523 | 35791.84 | 569 | 541 | 177.7 |
| D | 12 | 17 | 1022658 | 5753.04 | 569 | 541 | 177.7 |
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 |  |