Observation information
- date-obs: 2023-07-26
- time-obs: 10:23:28.871800000
- date-end: 2023-07-26
- time-end: 12:41:11.871600000
- obs_id: A12_102T01_9000005794
- exposure: 5301.14894962
- sourceid: 1ES 1927+654
- observer: savithri
- ra_pnt: 291.8314
- dec_pnt: 65.56506
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A12_102T01_9000005794_42313cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005794_42313cztM0_level2_quad_clean.evt
|
Size (bytes) | 322,735,680 | 96,177,600 |
Size | 307.8 MB
| 91.7 MB
|
Events in quadrant A | 3,197,115 | 656,569 |
Events in quadrant B | 2,540,002 | 667,940 |
Events in quadrant C | 2,619,784 | 628,093 |
Events in quadrant D | 3,165,621 | 578,895 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28 | 0 |
B | 0 | 28 | 0 |
C | 0 | 29 | 0 |
D | 0 | 29 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 110 | 0 |
B | 0 | 110 | 0 |
C | 0 | 110 | 0 |
D | 0 | 110 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12775 | 2 |
B | 0 | 11208 | 2 |
C | 0 | 11066 | 2 |
D | 0 | 13022 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5443 | 36 | 0.661400% |
B | 5443 | 7 | 0.128606% |
C | 5443 | 6 | 0.110233% |
D | 5443 | 88 | 1.616755% |
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 | 7356 | 5444 | 19 | 19 | 0.26% | 0.35% |  |
B | 7356 | 5444 | 1 | 1 | 0.01% | 0.02% |  |
C | 7356 | 5444 | 2 | 2 | 0.03% | 0.04% |  |
D | 7356 | 5444 | 72 | 72 | 0.98% | 1.32% |  |
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 | 10 | 83 | 589389 | 4634.05 | 625 | 612 | 127.1 |
A | 13 | 248 | 99291 | 776.66 | 625 | 612 | 127.1 |
A | 7 | 3 | 67997 | 530.36 | 625 | 612 | 127.1 |
B | 0 | 245 | 34726 | 293.6 | 615 | 599 | 116.2 |
B | 3 | 112 | 27453 | 231.03 | 615 | 599 | 116.2 |
B | 15 | 35 | 24137 | 202.5 | 615 | 599 | 116.2 |
C | 15 | 214 | 228960 | 1639.18 | 605 | 606 | 139.3 |
C | 15 | 159 | 13902 | 95.44 | 605 | 606 | 139.3 |
C | 12 | 249 | 13683 | 93.87 | 605 | 606 | 139.3 |
D | 1 | 52 | 296331 | 2040.59 | 606 | 591 | 144.9 |
D | 13 | 249 | 117807 | 808.78 | 606 | 591 | 144.9 |
D | 2 | 249 | 84477 | 578.81 | 606 | 591 | 144.9 |
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 |  |