Observation information
- date-obs: 2025-05-09
- time-obs: 16:26:12.196700000
- date-end: 2025-05-09
- time-end: 18:29:44.179100000
- obs_id: C09_011T06_9000006468
- exposure: 4291.99375492
- 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_52002cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52002cztM0_level2_quad_clean.evt
|
Size (bytes) | 809,841,600 | 80,847,360 |
Size | 772.3 MB
| 77.1 MB
|
Events in quadrant A | 8,816,401 | 447,441 |
Events in quadrant B | 4,085,125 | 654,984 |
Events in quadrant C | 6,425,916 | 526,397 |
Events in quadrant D | 10,166,901 | 382,191 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30577 | 1 |
B | 0 | 16444 | 1 |
C | 0 | 23462 | 1 |
D | 0 | 34563 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6258 | 1986 | 31.735379% |
B | 6258 | 206 | 3.291787% |
C | 6257 | 904 | 14.447818% |
D | 6257 | 2232 | 35.672047% |
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 | 7413 | 6258 | 1729 | 1729 | 23.32% | 27.63% |  |
B | 7413 | 6258 | 115 | 115 | 1.55% | 1.84% |  |
C | 7412 | 6257 | 833 | 833 | 11.24% | 13.31% |  |
D | 7412 | 6257 | 2113 | 2113 | 28.51% | 33.77% |  |
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 | 2573824 | 17900.88 | 573 | 559 | 143.8 |
A | 2 | 48 | 1799909 | 12517.15 | 573 | 559 | 143.8 |
A | 3 | 14 | 556670 | 3868.57 | 573 | 559 | 143.8 |
B | 4 | 206 | 264710 | 1905.62 | 664 | 642 | 138.6 |
B | 12 | 32 | 146959 | 1055.88 | 664 | 642 | 138.6 |
B | 10 | 247 | 132871 | 954.22 | 664 | 642 | 138.6 |
C | 15 | 224 | 2211736 | 12859.86 | 621 | 619 | 171.9 |
C | 9 | 38 | 743751 | 4322.06 | 621 | 619 | 171.9 |
C | 4 | 5 | 354598 | 2058.74 | 621 | 619 | 171.9 |
D | 6 | 42 | 2702428 | 17212.28 | 548 | 523 | 157.0 |
D | 12 | 17 | 1532513 | 9759.42 | 548 | 523 | 157.0 |
D | 8 | 176 | 1231129 | 7839.48 | 548 | 523 | 157.0 |
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 |  |