Observation information
- date-obs: 2025-05-04
- time-obs: 20:07:05.158900000
- date-end: 2025-05-04
- time-end: 22:13:37.141000000
- obs_id: C09_011T05_9000006466
- exposure: 1953.72135335
- 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_011T05_9000006466_51930cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51930cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,101,127,680 | 66,795,840 |
| Size | 1.0 GB
| 63.7 MB
|
| Events in quadrant A | 9,137,959 | 472,403 |
| Events in quadrant B | 10,198,324 | 396,505 |
| Events in quadrant C | 7,230,496 | 521,828 |
| Events in quadrant D | 13,704,285 | 187,907 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31614 | 2 |
| B | 0 | 34666 | 5 |
| C | 0 | 25936 | 2 |
| D | 0 | 45048 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6354 | 1693 | 26.644633% |
| B | 6353 | 3102 | 48.827326% |
| C | 6353 | 1230 | 19.360932% |
| D | 6353 | 4579 | 72.076184% |
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 | 7534 | 6355 | 1620 | 1620 | 21.50% | 25.49% |  |
| B | 7532 | 6352 | 2403 | 2403 | 31.90% | 37.83% |  |
| C | 7532 | 6353 | 1118 | 1118 | 14.84% | 17.60% |  |
| D | 7532 | 6352 | 4419 | 4419 | 58.67% | 69.57% |  |
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 | 7 | 64 | 1568696 | 10547.07 | 596 | 582 | 148.7 |
| A | 12 | 3 | 1420670 | 9551.45 | 596 | 582 | 148.7 |
| A | 4 | 175 | 1181836 | 7945.07 | 596 | 582 | 148.7 |
| B | 12 | 32 | 5388510 | 48929.36 | 516 | 498 | 110.1 |
| B | 10 | 44 | 1480848 | 13443.28 | 516 | 498 | 110.1 |
| B | 4 | 206 | 521408 | 4730.46 | 516 | 498 | 110.1 |
| C | 15 | 224 | 3170623 | 18388.3 | 614 | 607 | 172.4 |
| C | 15 | 218 | 489249 | 2834.46 | 614 | 607 | 172.4 |
| C | 13 | 3 | 232115 | 1342.91 | 614 | 607 | 172.4 |
| D | 12 | 17 | 6492223 | 57938.63 | 384 | 365 | 112.0 |
| D | 6 | 42 | 4556031 | 40658.48 | 384 | 365 | 112.0 |
| D | 3 | 12 | 396146 | 3532.27 | 384 | 365 | 112.0 |
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 |  |