Observation information
- date-obs: 2023-01-04
- time-obs: 12:37:58.682700000
- date-end: 2023-01-04
- time-end: 13:23:44.683300000
- obs_id: A12_102T01_9000005466
- exposure: 172.733889937
- 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_9000005466_39306cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005466_39306cztM0_level2_quad_clean.evt
|
Size (bytes) | 146,188,800 | 18,576,000 |
Size | 139.4 MB
| 17.7 MB
|
Events in quadrant A | 771,076 | 150,353 |
Events in quadrant B | 658,579 | 151,759 |
Events in quadrant C | 625,965 | 144,539 |
Events in quadrant D | 3,250,642 | 17,252 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 14 | 0 |
C | 0 | 14 | 0 |
D | 0 | 14 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3046 | 2 |
B | 0 | 2801 | 1 |
C | 0 | 2647 | 1 |
D | 0 | 10563 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30 | 0 |
B | 0 | 30 | 0 |
C | 0 | 30 | 0 |
D | 0 | 30 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 1313 | 8 | 0.609292% |
B | 1313 | 10 | 0.761615% |
C | 1313 | 1 | 0.076161% |
D | 1313 | 1184 | 90.175171% |
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 | 2746 | 1314 | 3 | 3 | 0.11% | 0.23% |  |
B | 2746 | 1314 | 6 | 6 | 0.22% | 0.46% |  |
C | 2746 | 1314 | 0 | 0 | 0.00% | 0.00% |  |
D | 2745 | 1313 | 979 | 979 | 35.66% | 74.56% |  |
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 | 148844 | 4577.64 | 150 | 147 | 32.5 |
A | 13 | 248 | 39657 | 1216.32 | 150 | 147 | 32.5 |
A | 10 | 67 | 1737 | 48.95 | 150 | 147 | 32.5 |
B | 0 | 183 | 32860 | 1079.3 | 146 | 142 | 30.3 |
B | 15 | 35 | 18152 | 594.11 | 146 | 142 | 30.3 |
B | 5 | 184 | 11799 | 384.54 | 146 | 142 | 30.3 |
C | 15 | 214 | 62279 | 1790.36 | 142 | 143 | 34.7 |
C | 14 | 254 | 2949 | 80.85 | 142 | 143 | 34.7 |
C | 4 | 0 | 1121 | 28.18 | 142 | 143 | 34.7 |
D | 12 | 235 | 2971385 | 168214.92 | 65 | 63 | 17.7 |
D | 5 | 222 | 12600 | 709.75 | 65 | 63 | 17.7 |
D | 12 | 233 | 3499 | 194.52 | 65 | 63 | 17.7 |
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 |  |