Observation information
- date-obs: 2025-05-17
- time-obs: 02:08:05.717500000
- date-end: 2025-05-17
- time-end: 03:34:45.705500000
- obs_id: C09_011T07_9000006470
- exposure: 179.394280612
- 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_52111cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52111cztM0_level2_quad_clean.evt
|
| Size (bytes) | 721,846,080 | 56,543,040 |
| Size | 688.4 MB
| 53.9 MB
|
| Events in quadrant A | 2,804,515 | 488,292 |
| Events in quadrant B | 4,287,527 | 489,698 |
| Events in quadrant C | 6,641,339 | 358,315 |
| Events in quadrant D | 12,589,090 | 16,213 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 104 | 2 |
| B | 0 | 103 | 1 |
| C | 0 | 103 | 1 |
| D | 0 | 104 | 2 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11915 | 130 |
| B | 0 | 16374 | 168 |
| C | 0 | 23443 | 118 |
| D | 0 | 41514 | 663 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5128 | 68 | 1.326053% |
| B | 5127 | 493 | 9.615760% |
| C | 5135 | 1530 | 29.795521% |
| D | 5111 | 4977 | 97.378204% |
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 | 5143 | 5137 | 49 | 49 | 0.95% | 0.95% |  |
| B | 5138 | 5134 | 258 | 258 | 5.02% | 5.03% |  |
| C | 5147 | 5141 | 1095 | 1095 | 21.27% | 21.30% |  |
| D | 5131 | 5114 | 4443 | 4443 | 86.59% | 86.88% |  |
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 | 130 | 197028 | 1417.85 | 556 | 540 | 138.6 |
| A | 4 | 3 | 161568 | 1161.97 | 556 | 540 | 138.6 |
| A | 5 | 240 | 56911 | 406.77 | 556 | 540 | 138.6 |
| B | 8 | 3 | 589309 | 5084.26 | 539 | 519 | 115.8 |
| B | 12 | 32 | 409805 | 3534.22 | 539 | 519 | 115.8 |
| B | 10 | 44 | 302991 | 2611.87 | 539 | 519 | 115.8 |
| C | 15 | 224 | 3585430 | 27146.3 | 475 | 472 | 132.1 |
| C | 2 | 239 | 217791 | 1645.6 | 475 | 472 | 132.1 |
| C | 13 | 3 | 154771 | 1168.39 | 475 | 472 | 132.1 |
| D | 6 | 42 | 9571308 | 160293.99 | 204 | 194 | 59.7 |
| D | 15 | 94 | 847702 | 14193.8 | 204 | 194 | 59.7 |
| D | 7 | 60 | 414778 | 6943.32 | 204 | 194 | 59.7 |
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 |  |