Observation information
- date-obs: 2025-05-19
- time-obs: 12:36:27.232100000
- date-end: 2025-05-19
- time-end: 14:34:40.224200000
- obs_id: C09_011T07_9000006470
- exposure: 518.785726666
- 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_52148cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52148cztM0_level2_quad_clean.evt
|
| Size (bytes) | 842,304,960 | 67,233,600 |
| Size | 803.3 MB
| 64.1 MB
|
| Events in quadrant A | 4,753,940 | 541,100 |
| Events in quadrant B | 4,151,409 | 612,942 |
| Events in quadrant C | 7,667,646 | 421,917 |
| Events in quadrant D | 14,146,963 | 45,464 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 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 | 18165 | 1 |
| B | 0 | 16398 | 1 |
| C | 0 | 26873 | 1 |
| D | 0 | 46031 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5929 | 626 | 10.558273% |
| B | 5929 | 259 | 4.368359% |
| C | 5929 | 1702 | 28.706359% |
| D | 5929 | 5484 | 92.494518% |
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 | 7094 | 5929 | 505 | 505 | 7.12% | 8.52% |  |
| B | 7094 | 5929 | 149 | 149 | 2.10% | 2.51% |  |
| C | 7094 | 5929 | 1517 | 1517 | 21.38% | 25.59% |  |
| D | 7093 | 5928 | 5281 | 5281 | 74.45% | 89.09% |  |
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 | 95 | 754501 | 4910.03 | 617 | 602 | 153.5 |
| A | 14 | 254 | 563808 | 3668.07 | 617 | 602 | 153.5 |
| A | 15 | 239 | 400001 | 2601.22 | 617 | 602 | 153.5 |
| B | 4 | 170 | 429824 | 3287.68 | 621 | 601 | 130.6 |
| B | 10 | 254 | 221025 | 1688.36 | 621 | 601 | 130.6 |
| B | 5 | 185 | 186297 | 1422.36 | 621 | 601 | 130.6 |
| C | 15 | 224 | 4643079 | 31265.52 | 531 | 526 | 148.5 |
| C | 15 | 248 | 224224 | 1506.51 | 531 | 526 | 148.5 |
| C | 1 | 45 | 116030 | 777.87 | 531 | 526 | 148.5 |
| D | 6 | 42 | 11402517 | 142913.54 | 276 | 263 | 79.8 |
| D | 15 | 94 | 1125780 | 14107.0 | 276 | 263 | 79.8 |
| D | 15 | 43 | 122853 | 1536.52 | 276 | 263 | 79.8 |
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 |  |