Observation information
- date-obs: 2025-06-20
- time-obs: 21:35:15.594000000
- date-end: 2025-06-20
- time-end: 23:51:20.574900000
- obs_id: C09_011T06_9000006478
- exposure: 2998.79678857
- 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_52629cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52629cztM0_level2_quad_clean.evt
|
| Size (bytes) | 944,435,520 | 72,662,400 |
| Size | 900.7 MB
| 69.3 MB
|
| Events in quadrant A | 3,771,590 | 611,246 |
| Events in quadrant B | 11,835,222 | 326,369 |
| Events in quadrant C | 12,972,721 | 285,082 |
| Events in quadrant D | 5,885,611 | 529,705 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15708 | 2 |
| B | 0 | 39514 | 2 |
| C | 0 | 42884 | 5 |
| D | 0 | 21914 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6410 | 68 | 1.060842% |
| B | 6410 | 3706 | 57.815913% |
| C | 6409 | 3721 | 58.058980% |
| D | 6409 | 390 | 6.085193% |
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 | 7535 | 6411 | 53 | 53 | 0.70% | 0.83% |  |
| B | 7535 | 6411 | 2933 | 2933 | 38.93% | 45.75% |  |
| C | 7534 | 6410 | 3354 | 3354 | 44.52% | 52.32% |  |
| D | 7534 | 6410 | 391 | 391 | 5.19% | 6.10% |  |
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 | 14 | 563237 | 3414.48 | 656 | 641 | 164.8 |
| A | 8 | 246 | 96450 | 581.48 | 656 | 641 | 164.8 |
| A | 8 | 9 | 95616 | 576.42 | 656 | 641 | 164.8 |
| B | 10 | 128 | 4801767 | 43950.95 | 520 | 503 | 109.2 |
| B | 10 | 254 | 4000491 | 36616.04 | 520 | 503 | 109.2 |
| B | 5 | 185 | 384109 | 3511.54 | 520 | 503 | 109.2 |
| C | 15 | 248 | 9783526 | 76540.37 | 462 | 457 | 127.8 |
| C | 13 | 3 | 992606 | 7762.33 | 462 | 457 | 127.8 |
| C | 1 | 44 | 59425 | 461.35 | 462 | 457 | 127.8 |
| D | 2 | 62 | 1219527 | 6755.17 | 625 | 596 | 180.4 |
| D | 1 | 7 | 382390 | 2115.86 | 625 | 596 | 180.4 |
| D | 6 | 42 | 284690 | 1574.41 | 625 | 596 | 180.4 |
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 |  |