Observation information
- date-obs: 2025-05-23
- time-obs: 22:14:52.369500000
- date-end: 2025-05-24
- time-end: 03:54:05.321300000
- obs_id: C09_011T08_9000006472
- exposure: 6604.98992419
- 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_011T08_9000006472_52215cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006472_52215cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,679,998,400 | 190,425,600 |
| Size | 2.5 GB
| 181.6 MB
|
| Events in quadrant A | 13,949,993 | 1,500,975 |
| Events in quadrant B | 22,479,190 | 1,375,505 |
| Events in quadrant C | 22,982,116 | 1,108,309 |
| Events in quadrant D | 38,414,258 | 540,510 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 56133 | 1934 |
| B | 0 | 85408 | 6137 |
| C | 0 | 83677 | 2798 |
| D | 0 | 133051 | 6614 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 385 | 17 |
| B | 0 | 381 | 13 |
| C | 0 | 385 | 15 |
| D | 0 | 384 | 17 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18041 | 1566 | 8.680228% |
| B | 17884 | 4078 | 22.802505% |
| C | 18003 | 5436 | 30.194968% |
| D | 17889 | 12065 | 67.443680% |
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 | 20354 | 18123 | 1241 | 1241 | 6.10% | 6.85% |  |
| B | 20354 | 17963 | 3194 | 3194 | 15.69% | 17.78% |  |
| C | 20354 | 18094 | 4413 | 4413 | 21.68% | 24.39% |  |
| D | 20353 | 17935 | 11634 | 11634 | 57.16% | 64.87% |  |
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 | 14 | 254 | 2656676 | 5799.96 | 1828 | 1781 | 457.7 |
| A | 4 | 249 | 1638183 | 3574.93 | 1828 | 1781 | 457.7 |
| A | 12 | 3 | 1190474 | 2596.85 | 1828 | 1781 | 457.7 |
| B | 10 | 254 | 8026683 | 22162.88 | 1721 | 1660 | 362.1 |
| B | 12 | 32 | 2793790 | 7711.09 | 1721 | 1660 | 362.1 |
| B | 5 | 32 | 2075485 | 5727.33 | 1721 | 1660 | 362.1 |
| C | 15 | 224 | 10688652 | 25882.43 | 1488 | 1474 | 412.9 |
| C | 13 | 3 | 2506069 | 6065.68 | 1488 | 1474 | 412.9 |
| C | 15 | 177 | 978871 | 2367.08 | 1488 | 1474 | 412.9 |
| D | 6 | 42 | 15233803 | 46053.09 | 1165 | 1113 | 330.8 |
| D | 12 | 17 | 8416560 | 25442.48 | 1165 | 1113 | 330.8 |
| D | 15 | 93 | 3414312 | 10319.15 | 1165 | 1113 | 330.8 |
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 |  |