Observation information
- date-obs: 2025-06-22
- time-obs: 07:08:29.321300000
- date-end: 2025-06-22
- time-end: 17:33:14.236400000
- obs_id: C09_011T07_9000006480
- exposure: 5616.79431045
- 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_52655cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52655cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,559,563,200 | 128,295,360 |
| Size | 1.5 GB
| 122.4 MB
|
| Events in quadrant A | 6,371,429 | 1,066,941 |
| Events in quadrant B | 17,067,636 | 739,861 |
| Events in quadrant C | 18,634,651 | 505,614 |
| Events in quadrant D | 14,773,457 | 778,283 |
Level1 data integrity
| 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 | 234 | 0 |
| B | 0 | 234 | 0 |
| C | 0 | 234 | 0 |
| D | 0 | 234 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26766 | 3 |
| B | 0 | 58640 | 3 |
| C | 0 | 63393 | 12 |
| D | 0 | 51882 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11449 | 369 | 3.222989% |
| B | 11450 | 4804 | 41.956332% |
| C | 11448 | 5923 | 51.738295% |
| D | 11450 | 2779 | 24.270742% |
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 | 37485 | 11452 | 106 | 106 | 0.28% | 0.93% |  |
| B | 37486 | 11452 | 3960 | 3960 | 10.56% | 34.58% |  |
| C | 37484 | 11450 | 5588 | 5588 | 14.91% | 48.80% |  |
| D | 37485 | 11451 | 2538 | 2538 | 6.77% | 22.16% |  |
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 | 323358 | 1087.8 | 1197 | 1168 | 296.2 |
| A | 14 | 239 | 278580 | 936.62 | 1197 | 1168 | 296.2 |
| A | 3 | 114 | 260810 | 876.62 | 1197 | 1168 | 296.2 |
| B | 10 | 128 | 7504164 | 35126.62 | 1006 | 972 | 213.6 |
| B | 12 | 32 | 3391548 | 15873.18 | 1006 | 972 | 213.6 |
| B | 10 | 247 | 609816 | 2850.34 | 1006 | 972 | 213.6 |
| C | 15 | 233 | 9972333 | 46273.32 | 782 | 773 | 215.5 |
| C | 15 | 158 | 2347869 | 10891.77 | 782 | 773 | 215.5 |
| C | 2 | 239 | 629135 | 2915.93 | 782 | 773 | 215.5 |
| D | 8 | 176 | 1953384 | 6435.72 | 1056 | 1006 | 303.4 |
| D | 1 | 7 | 1871115 | 6164.53 | 1056 | 1006 | 303.4 |
| D | 15 | 125 | 1848779 | 6090.91 | 1056 | 1006 | 303.4 |
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 |  |