Observation information
- date-obs: 2025-05-10
- time-obs: 01:17:13.123800000
- date-end: 2025-05-10
- time-end: 03:13:50.107900000
- obs_id: C09_011T06_9000006468
- exposure: 5335.92061812
- 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_9000006468_52007cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52007cztM0_level2_quad_clean.evt
|
Size (bytes) | 889,358,400 | 88,148,160 |
Size | 848.2 MB
| 84.1 MB
|
Events in quadrant A | 6,374,595 | 584,044 |
Events in quadrant B | 9,462,861 | 531,112 |
Events in quadrant C | 8,016,338 | 533,545 |
Events in quadrant D | 8,527,432 | 532,118 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23905 | 0 |
B | 0 | 33026 | 0 |
C | 0 | 28617 | 0 |
D | 0 | 30305 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 140 | 0 |
B | 0 | 140 | 0 |
C | 0 | 140 | 0 |
D | 0 | 140 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6997 | 840 | 12.005145% |
B | 6998 | 2149 | 30.708774% |
C | 6998 | 1408 | 20.120034% |
D | 6998 | 956 | 13.661046% |
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 | 6997 | 6997 | 736 | 736 | 10.52% | 10.52% |  |
B | 6998 | 6998 | 1202 | 1202 | 17.18% | 17.18% |  |
C | 6998 | 6998 | 1402 | 1402 | 20.03% | 20.03% |  |
D | 6998 | 6998 | 1072 | 1072 | 15.32% | 15.32% |  |
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 | 1528289 | 8867.68 | 695 | 679 | 172.3 |
A | 8 | 246 | 444721 | 2577.64 | 695 | 679 | 172.3 |
A | 7 | 64 | 391588 | 2269.2 | 695 | 679 | 172.3 |
B | 7 | 0 | 5825649 | 41363.18 | 659 | 635 | 140.8 |
B | 4 | 206 | 367749 | 2606.86 | 659 | 635 | 140.8 |
B | 10 | 247 | 107571 | 759.35 | 659 | 635 | 140.8 |
C | 15 | 224 | 3486074 | 19046.75 | 655 | 647 | 183.0 |
C | 4 | 5 | 827873 | 4520.53 | 655 | 647 | 183.0 |
C | 15 | 178 | 374084 | 2040.71 | 655 | 647 | 183.0 |
D | 12 | 6 | 1843638 | 9847.54 | 663 | 635 | 187.2 |
D | 2 | 172 | 1589700 | 8490.7 | 663 | 635 | 187.2 |
D | 12 | 17 | 544779 | 2907.47 | 663 | 635 | 187.2 |
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 |  |