Observation information
- date-obs: 2025-05-09
- time-obs: 10:36:16.245700000
- date-end: 2025-05-09
- time-end: 13:23:23.221600000
- obs_id: C09_011T06_9000006468
- exposure: 5485.12894297
- 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_51998cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51998cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,094,984,640 | 105,289,920 |
Size | 1.0 GB
| 100.4 MB
|
Events in quadrant A | 13,102,002 | 510,345 |
Events in quadrant B | 5,770,788 | 827,749 |
Events in quadrant C | 7,456,646 | 713,038 |
Events in quadrant D | 13,532,001 | 532,315 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 44926 | 2 |
B | 0 | 23003 | 2 |
C | 0 | 28126 | 2 |
D | 0 | 46309 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 178 | 0 |
B | 0 | 178 | 0 |
C | 0 | 178 | 0 |
D | 0 | 178 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 8697 | 3552 | 40.841670% |
B | 8697 | 490 | 5.634127% |
C | 8698 | 872 | 10.025293% |
D | 8698 | 2737 | 31.467004% |
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 | 10027 | 8697 | 3137 | 3137 | 31.29% | 36.07% |  |
B | 10027 | 8698 | 295 | 295 | 2.94% | 3.39% |  |
C | 10028 | 8699 | 705 | 705 | 7.03% | 8.10% |  |
D | 10028 | 8698 | 2675 | 2675 | 26.68% | 30.75% |  |
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 | 7 | 64 | 4269514 | 21339.71 | 782 | 760 | 200.0 |
A | 4 | 95 | 3964688 | 19815.87 | 782 | 760 | 200.0 |
A | 12 | 2 | 389800 | 1944.83 | 782 | 760 | 200.0 |
B | 4 | 206 | 785835 | 4121.42 | 900 | 867 | 190.5 |
B | 10 | 128 | 309264 | 1619.22 | 900 | 867 | 190.5 |
B | 10 | 247 | 266753 | 1396.02 | 900 | 867 | 190.5 |
C | 15 | 224 | 2693635 | 11361.05 | 869 | 861 | 237.0 |
C | 9 | 38 | 260541 | 1095.61 | 869 | 861 | 237.0 |
C | 14 | 254 | 218288 | 917.34 | 869 | 861 | 237.0 |
D | 6 | 42 | 4507654 | 19911.55 | 795 | 759 | 226.3 |
D | 12 | 17 | 1508376 | 6660.68 | 795 | 759 | 226.3 |
D | 6 | 43 | 1039404 | 4588.75 | 795 | 759 | 226.3 |
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 |  |