Observation information
- date-obs: 2023-07-28
- time-obs: 21:21:55.796700000
- date-end: 2023-07-28
- time-end: 23:47:59.791000000
- obs_id: A12_102T01_9000005798
- exposure: 5792.67724735
- 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_9000005798_42349cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005798_42349cztM0_level2_quad_clean.evt
|
Size (bytes) | 341,781,120 | 96,796,800 |
Size | 325.9 MB
| 92.3 MB
|
Events in quadrant A | 3,063,283 | 644,033 |
Events in quadrant B | 2,613,037 | 653,921 |
Events in quadrant C | 2,722,603 | 634,481 |
Events in quadrant D | 3,786,026 | 579,966 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27 | 0 |
B | 0 | 27 | 0 |
C | 0 | 27 | 0 |
D | 0 | 27 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 124 | 0 |
B | 0 | 124 | 0 |
C | 0 | 124 | 0 |
D | 0 | 124 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12976 | 2 |
B | 0 | 12225 | 2 |
C | 0 | 12178 | 2 |
D | 0 | 15553 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5989 | 19 | 0.317248% |
B | 5990 | 18 | 0.300501% |
C | 5990 | 7 | 0.116861% |
D | 5990 | 155 | 2.587646% |
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 | 8764 | 5991 | 4 | 4 | 0.05% | 0.07% |  |
B | 8765 | 5992 | 6 | 6 | 0.07% | 0.10% |  |
C | 8765 | 5992 | 2 | 2 | 0.02% | 0.03% |  |
D | 8765 | 5992 | 163 | 163 | 1.86% | 2.72% |  |
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 | 590093 | 4526.25 | 633 | 619 | 130.2 |
A | 13 | 248 | 11741 | 85.4 | 633 | 619 | 130.2 |
A | 13 | 254 | 9970 | 71.8 | 633 | 619 | 130.2 |
B | 5 | 172 | 38412 | 304.3 | 632 | 614 | 124.2 |
B | 0 | 230 | 25749 | 202.35 | 632 | 614 | 124.2 |
B | 5 | 255 | 23745 | 186.22 | 632 | 614 | 124.2 |
C | 15 | 214 | 251062 | 1723.47 | 622 | 627 | 145.3 |
C | 15 | 111 | 25793 | 173.19 | 622 | 627 | 145.3 |
C | 5 | 128 | 9992 | 64.45 | 622 | 627 | 145.3 |
D | 5 | 222 | 598021 | 3962.95 | 614 | 598 | 150.8 |
D | 12 | 6 | 208904 | 1381.78 | 614 | 598 | 150.8 |
D | 1 | 52 | 169032 | 1117.29 | 614 | 598 | 150.8 |
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 |  |