Observation information
- date-obs: 2023-07-28
- time-obs: 16:31:48.804400000
- date-end: 2023-07-28
- time-end: 18:33:50.801500000
- obs_id: A12_102T01_9000005798
- exposure: 4874.59660167
- 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_42346cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005798_42346cztM0_level2_quad_clean.evt
|
Size (bytes) | 291,726,720 | 86,189,760 |
Size | 278.2 MB
| 82.2 MB
|
Events in quadrant A | 2,699,331 | 581,178 |
Events in quadrant B | 2,429,136 | 580,402 |
Events in quadrant C | 2,328,028 | 571,320 |
Events in quadrant D | 2,947,204 | 521,564 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 21 | 0 |
C | 0 | 22 | 0 |
D | 0 | 22 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 106 | 0 |
B | 0 | 106 | 0 |
C | 0 | 106 | 0 |
D | 0 | 106 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11223 | 2 |
B | 0 | 10885 | 2 |
C | 0 | 10177 | 2 |
D | 0 | 12334 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5062 | 15 | 0.296326% |
B | 5062 | 70 | 1.382853% |
C | 5061 | 4 | 0.079036% |
D | 5061 | 144 | 2.845287% |
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 | 7125 | 5063 | 7 | 7 | 0.10% | 0.14% |  |
B | 7125 | 5063 | 49 | 49 | 0.69% | 0.97% |  |
C | 7124 | 5062 | 0 | 0 | 0.00% | 0.00% |  |
D | 7124 | 5062 | 121 | 121 | 1.70% | 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 | 558976 | 5038.32 | 542 | 533 | 110.8 |
A | 10 | 255 | 18576 | 162.79 | 542 | 533 | 110.8 |
A | 13 | 6 | 12172 | 105.01 | 542 | 533 | 110.8 |
B | 5 | 255 | 94851 | 914.65 | 538 | 524 | 103.1 |
B | 5 | 172 | 84280 | 812.15 | 538 | 524 | 103.1 |
B | 4 | 81 | 64460 | 619.96 | 538 | 524 | 103.1 |
C | 15 | 214 | 210307 | 1671.29 | 538 | 541 | 125.5 |
C | 9 | 54 | 11857 | 90.16 | 538 | 541 | 125.5 |
C | 7 | 247 | 8388 | 62.52 | 538 | 541 | 125.5 |
D | 12 | 233 | 419452 | 3254.65 | 531 | 516 | 128.7 |
D | 12 | 6 | 106774 | 825.5 | 531 | 516 | 128.7 |
D | 10 | 255 | 96245 | 743.7 | 531 | 516 | 128.7 |
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 |  |