Observation information
- date-obs: 2023-07-26
- time-obs: 19:00:08.869900000
- date-end: 2023-07-26
- time-end: 21:13:59.868300000
- obs_id: A12_102T01_9000005794
- exposure: 4817.06750536
- 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_42318cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005794_42318cztM0_level2_quad_clean.evt
|
Size (bytes) | 283,832,640 | 82,189,440 |
Size | 270.7 MB
| 78.4 MB
|
Events in quadrant A | 2,805,152 | 545,771 |
Events in quadrant B | 2,326,058 | 554,097 |
Events in quadrant C | 2,226,446 | 543,598 |
Events in quadrant D | 2,760,152 | 495,395 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29 | 0 |
B | 0 | 30 | 0 |
C | 0 | 30 | 0 |
D | 0 | 30 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 104 | 0 |
B | 0 | 104 | 0 |
C | 0 | 104 | 0 |
D | 0 | 104 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11576 | 2 |
B | 0 | 10654 | 2 |
C | 0 | 9988 | 2 |
D | 0 | 11794 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4981 | 31 | 0.622365% |
B | 4981 | 48 | 0.963662% |
C | 4981 | 3 | 0.060229% |
D | 4981 | 132 | 2.650070% |
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 | 6774 | 4982 | 14 | 14 | 0.21% | 0.28% |  |
B | 6774 | 4982 | 30 | 30 | 0.44% | 0.60% |  |
C | 6774 | 4982 | 0 | 0 | 0.00% | 0.00% |  |
D | 6774 | 4982 | 119 | 119 | 1.76% | 2.39% |  |
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 | 517032 | 4862.22 | 520 | 509 | 106.2 |
A | 15 | 223 | 217888 | 2046.27 | 520 | 509 | 106.2 |
A | 15 | 252 | 38131 | 354.15 | 520 | 509 | 106.2 |
B | 5 | 172 | 157827 | 1556.94 | 519 | 503 | 101.0 |
B | 3 | 112 | 49068 | 480.62 | 519 | 503 | 101.0 |
B | 15 | 35 | 31811 | 309.84 | 519 | 503 | 101.0 |
C | 15 | 214 | 209038 | 1735.04 | 516 | 519 | 120.2 |
C | 12 | 249 | 4294 | 31.41 | 516 | 519 | 120.2 |
C | 13 | 61 | 3450 | 24.39 | 516 | 519 | 120.2 |
D | 12 | 6 | 260158 | 2109.44 | 506 | 493 | 123.1 |
D | 2 | 249 | 187872 | 1522.21 | 506 | 493 | 123.1 |
D | 13 | 249 | 153635 | 1244.08 | 506 | 493 | 123.1 |
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 |  |