Observation information
- date-obs: 2023-04-22
- time-obs: 02:13:32.631500000
- date-end: 2023-04-22
- time-end: 02:42:19.536300000
- obs_id: A12_102T01_9000005576
- exposure: 998.367778242
- 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_40899cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005576_40899cztM0_level2_quad_clean.evt
|
Size (bytes) | 55,336,320 | 16,669,440 |
Size | 52.8 MB
| 15.9 MB
|
Events in quadrant A | 553,395 | 107,931 |
Events in quadrant B | 506,156 | 109,455 |
Events in quadrant C | 454,538 | 108,137 |
Events in quadrant D | 450,363 | 100,013 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22 | 0 |
B | 0 | 22 | 0 |
C | 0 | 22 | 0 |
D | 0 | 22 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2324 | 2 |
B | 0 | 2337 | 1 |
C | 0 | 2113 | 1 |
D | 0 | 2204 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 7 | 0 |
B | 0 | 7 | 0 |
C | 0 | 7 | 0 |
D | 0 | 7 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 1033 | 4 | 0.387222% |
B | 1033 | 27 | 2.613746% |
C | 1033 | 4 | 0.387222% |
D | 1033 | 10 | 0.968054% |
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 | 1033 | 1033 | 2 | 2 | 0.19% | 0.19% |  |
B | 1033 | 1033 | 18 | 18 | 1.74% | 1.74% |  |
C | 1033 | 1033 | 2 | 2 | 0.19% | 0.19% |  |
D | 1033 | 1033 | 7 | 7 | 0.68% | 0.68% |  |
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 | 153377 | 6694.9 | 101 | 99 | 22.9 |
A | 13 | 6 | 3803 | 161.78 | 101 | 99 | 22.9 |
A | 12 | 189 | 2792 | 117.63 | 101 | 99 | 22.9 |
B | 5 | 255 | 97649 | 4509.77 | 101 | 98 | 21.6 |
B | 0 | 190 | 5247 | 238.04 | 101 | 98 | 21.6 |
B | 12 | 111 | 2450 | 108.73 | 101 | 98 | 21.6 |
C | 15 | 214 | 47436 | 1883.96 | 99 | 100 | 25.1 |
C | 0 | 10 | 15888 | 628.36 | 99 | 100 | 25.1 |
C | 5 | 10 | 1869 | 70.41 | 99 | 100 | 25.1 |
D | 12 | 6 | 57755 | 2215.21 | 97 | 94 | 26.0 |
D | 13 | 249 | 6911 | 261.89 | 97 | 94 | 26.0 |
D | 2 | 234 | 4996 | 188.32 | 97 | 94 | 26.0 |
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 |  |