Observation information
- date-obs: 2025-06-18
- time-obs: 09:08:27.693300000
- date-end: 2025-06-18
- time-end: 14:41:34.028600000
- obs_id: C09_011T06_9000006478
- exposure: 9371.50906062
- 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_52593cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52593cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,638,676,160 | 204,603,840 |
| Size | 2.5 GB
| 195.1 MB
|
| Events in quadrant A | 9,871,085 | 1,686,112 |
| Events in quadrant B | 23,637,109 | 1,415,641 |
| Events in quadrant C | 27,021,144 | 1,047,374 |
| Events in quadrant D | 35,701,620 | 749,441 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 42612 | 4 |
| B | 0 | 83266 | 4 |
| C | 0 | 93371 | 4 |
| D | 0 | 119026 | 4 |
| 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 SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 382 | 0 |
| B | 0 | 382 | 0 |
| C | 0 | 382 | 0 |
| D | 0 | 382 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18782 | 547 | 2.912363% |
| B | 18782 | 4510 | 24.012352% |
| C | 18783 | 7212 | 38.396422% |
| D | 18783 | 10361 | 55.161582% |
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 | 19987 | 18783 | 253 | 253 | 1.27% | 1.35% |  |
| B | 19987 | 18782 | 3413 | 3413 | 17.08% | 18.17% |  |
| C | 19987 | 18784 | 6577 | 6577 | 32.91% | 35.01% |  |
| D | 19988 | 18784 | 10303 | 10303 | 51.55% | 54.85% |  |
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 | 249 | 428987 | 875.17 | 1971 | 1925 | 488.0 |
| A | 5 | 243 | 314512 | 640.58 | 1971 | 1925 | 488.0 |
| A | 15 | 174 | 244355 | 496.81 | 1971 | 1925 | 488.0 |
| B | 10 | 254 | 7899855 | 21186.69 | 1775 | 1710 | 372.8 |
| B | 10 | 44 | 4788555 | 12840.66 | 1775 | 1710 | 372.8 |
| B | 10 | 128 | 803930 | 2151.95 | 1775 | 1710 | 372.8 |
| C | 15 | 248 | 19524698 | 48044.62 | 1472 | 1459 | 406.4 |
| C | 13 | 3 | 799869 | 1964.8 | 1472 | 1459 | 406.4 |
| C | 12 | 249 | 166173 | 405.34 | 1472 | 1459 | 406.4 |
| D | 15 | 125 | 15508826 | 37364.42 | 1407 | 1340 | 415.0 |
| D | 2 | 62 | 3745972 | 9022.48 | 1407 | 1340 | 415.0 |
| D | 8 | 176 | 3186326 | 7674.04 | 1407 | 1340 | 415.0 |
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 |  |