Observation information
- date-obs: 2023-04-22
- time-obs: 19:36:52.503400000
- date-end: 2023-04-22
- time-end: 21:42:19.503000000
- obs_id: A12_102T01_9000005576
- exposure: 4332.06342548
- 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_9000005576_40911cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005576_40911cztM0_level2_quad_clean.evt
|
Size (bytes) | 293,126,400 | 79,796,160 |
Size | 279.5 MB
| 76.1 MB
|
Events in quadrant A | 2,469,791 | 538,092 |
Events in quadrant B | 2,765,539 | 529,875 |
Events in quadrant C | 2,330,809 | 537,997 |
Events in quadrant D | 2,924,374 | 486,321 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 94 | 0 |
B | 0 | 94 | 0 |
C | 0 | 94 | 0 |
D | 0 | 94 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10280 | 2 |
B | 0 | 11520 | 2 |
C | 0 | 9878 | 2 |
D | 0 | 11910 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29 | 0 |
B | 0 | 29 | 0 |
C | 0 | 29 | 0 |
D | 0 | 30 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4613 | 12 | 0.260134% |
B | 4613 | 247 | 5.354433% |
C | 4613 | 63 | 1.365706% |
D | 4613 | 158 | 3.425103% |
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 | 6764 | 4614 | 5 | 5 | 0.07% | 0.11% |  |
B | 6764 | 4614 | 196 | 196 | 2.90% | 4.25% |  |
C | 6764 | 4614 | 50 | 50 | 0.74% | 1.08% |  |
D | 6764 | 4614 | 126 | 126 | 1.86% | 2.73% |  |
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 | 466076 | 4611.35 | 498 | 490 | 101.0 |
A | 12 | 189 | 25294 | 245.67 | 498 | 490 | 101.0 |
A | 7 | 3 | 15738 | 151.02 | 498 | 490 | 101.0 |
B | 5 | 32 | 662905 | 6984.02 | 492 | 478 | 94.8 |
B | 5 | 255 | 111483 | 1170.33 | 492 | 478 | 94.8 |
B | 0 | 190 | 28455 | 294.96 | 492 | 478 | 94.8 |
C | 15 | 214 | 196158 | 1700.07 | 498 | 502 | 115.1 |
C | 0 | 10 | 162182 | 1404.85 | 498 | 502 | 115.1 |
C | 14 | 254 | 24472 | 208.28 | 498 | 502 | 115.1 |
D | 12 | 233 | 311173 | 2656.89 | 486 | 474 | 116.9 |
D | 13 | 249 | 234603 | 2002.11 | 486 | 474 | 116.9 |
D | 12 | 79 | 150937 | 1286.66 | 486 | 474 | 116.9 |
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 |  |