Observation information
- date-obs: 2025-06-23
- time-obs: 05:30:23.138000000
- date-end: 2025-06-23
- time-end: 11:42:34.088100000
- obs_id: C09_011T07_9000006480
- exposure: 2668.86654145
- 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_9000006480_52666cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52666cztM0_level2_quad_clean.evt
|
| Size (bytes) | 3,545,726,400 | 203,757,120 |
| Size | 3.3 GB
| 194.3 MB
|
| Events in quadrant A | 21,182,399 | 1,724,856 |
| Events in quadrant B | 19,034,360 | 1,862,930 |
| Events in quadrant C | 51,707,379 | 236,311 |
| Events in quadrant D | 37,679,536 | 864,637 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 434 | 0 |
| B | 0 | 434 | 0 |
| C | 0 | 434 | 0 |
| D | 0 | 434 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 78047 | 2 |
| B | 0 | 71380 | 2 |
| C | 0 | 168359 | 4 |
| D | 0 | 126819 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 21471 | 2335 | 10.875134% |
| B | 21471 | 1993 | 9.282288% |
| C | 21470 | 19215 | 89.496973% |
| D | 21471 | 11512 | 53.616506% |
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 | 22331 | 21471 | 1763 | 1763 | 7.89% | 8.21% |  |
| B | 22331 | 21471 | 1389 | 1389 | 6.22% | 6.47% |  |
| C | 22330 | 21470 | 18530 | 18530 | 82.98% | 86.31% |  |
| D | 22331 | 21471 | 10737 | 10737 | 48.08% | 50.01% |  |
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 | 6182937 | 11432.88 | 2141 | 2088 | 540.6 |
| A | 8 | 249 | 4295645 | 7941.91 | 2141 | 2088 | 540.6 |
| A | 15 | 239 | 554747 | 1022.27 | 2141 | 2088 | 540.6 |
| B | 10 | 128 | 4463520 | 9905.41 | 2127 | 2057 | 450.4 |
| B | 12 | 32 | 1529714 | 3391.73 | 2127 | 2057 | 450.4 |
| B | 4 | 171 | 960256 | 2127.41 | 2127 | 2057 | 450.4 |
| C | 15 | 233 | 23360847 | 103144.29 | 823 | 817 | 226.5 |
| C | 15 | 248 | 15616787 | 68951.03 | 823 | 817 | 226.5 |
| C | 15 | 224 | 5503428 | 24296.32 | 823 | 817 | 226.5 |
| D | 12 | 3 | 22727896 | 54561.69 | 1433 | 1365 | 416.5 |
| D | 1 | 7 | 3072475 | 7373.1 | 1433 | 1365 | 416.5 |
| D | 8 | 176 | 2427773 | 5825.3 | 1433 | 1365 | 416.5 |
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 |  |