Observation information
- date-obs: 2025-05-08
- time-obs: 22:53:44.341100000
- date-end: 2025-05-09
- time-end: 01:14:14.321400000
- obs_id: C09_011T06_9000006468
- exposure: 4511.14094776
- 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_51991cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51991cztM0_level2_quad_clean.evt
|
Size (bytes) | 528,096,960 | 70,220,160 |
Size | 503.6 MB
| 67.0 MB
|
Events in quadrant A | 5,643,900 | 417,578 |
Events in quadrant B | 3,285,051 | 502,888 |
Events in quadrant C | 4,988,458 | 436,108 |
Events in quadrant D | 5,225,959 | 403,815 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20493 | 93 |
B | 0 | 13673 | 43 |
C | 0 | 18555 | 65 |
D | 0 | 19309 | 64 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16 | 2 |
B | 0 | 15 | 1 |
C | 0 | 14 | 0 |
D | 0 | 15 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 107 | 3 |
B | 0 | 106 | 2 |
C | 0 | 106 | 2 |
D | 0 | 106 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5222 | 852 | 16.315588% |
B | 5225 | 281 | 5.377990% |
C | 5223 | 695 | 13.306529% |
D | 5223 | 570 | 10.913268% |
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 | 7993 | 5227 | 724 | 724 | 9.06% | 13.85% |  |
B | 7993 | 5229 | 133 | 133 | 1.66% | 2.54% |  |
C | 7993 | 5226 | 587 | 587 | 7.34% | 11.23% |  |
D | 7993 | 5229 | 487 | 487 | 6.09% | 9.31% |  |
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 | 1926240 | 15641.6 | 484 | 470 | 123.1 |
A | 12 | 2 | 596994 | 4845.12 | 484 | 470 | 123.1 |
A | 4 | 95 | 187354 | 1517.92 | 484 | 470 | 123.1 |
B | 4 | 206 | 271437 | 2469.83 | 516 | 498 | 109.7 |
B | 0 | 172 | 140312 | 1274.52 | 516 | 498 | 109.7 |
B | 0 | 213 | 121697 | 1104.83 | 516 | 498 | 109.7 |
C | 15 | 224 | 2066600 | 14981.42 | 493 | 488 | 137.9 |
C | 13 | 3 | 448521 | 3248.7 | 493 | 488 | 137.9 |
C | 9 | 38 | 144232 | 1042.29 | 493 | 488 | 137.9 |
D | 8 | 176 | 1366930 | 9819.94 | 480 | 459 | 139.2 |
D | 6 | 42 | 843666 | 6059.58 | 480 | 459 | 139.2 |
D | 12 | 17 | 437985 | 3144.21 | 480 | 459 | 139.2 |
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 |  |