Observation information
- date-obs: 2023-07-26
- time-obs: 15:48:28.870700000
- date-end: 2023-07-26
- time-end: 17:49:32.870200000
- obs_id: A12_102T01_9000005794
- exposure: 4754.47290564
- 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_42316cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005794_42316cztM0_level2_quad_clean.evt
|
Size (bytes) | 286,715,520 | 87,410,880 |
Size | 273.4 MB
| 83.4 MB
|
Events in quadrant A | 2,726,093 | 591,663 |
Events in quadrant B | 2,374,047 | 596,817 |
Events in quadrant C | 2,352,290 | 582,387 |
Events in quadrant D | 2,778,777 | 532,533 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23 | 0 |
B | 0 | 23 | 0 |
C | 0 | 24 | 0 |
D | 0 | 24 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 100 | 0 |
B | 0 | 100 | 0 |
C | 0 | 100 | 0 |
D | 0 | 100 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11115 | 2 |
B | 0 | 10413 | 2 |
C | 0 | 10003 | 2 |
D | 0 | 11707 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4896 | 22 | 0.449346% |
B | 4896 | 34 | 0.694444% |
C | 4896 | 7 | 0.142974% |
D | 4896 | 102 | 2.083333% |
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 | 7048 | 4897 | 13 | 13 | 0.18% | 0.27% |  |
B | 7048 | 4897 | 27 | 27 | 0.38% | 0.55% |  |
C | 7048 | 4897 | 1 | 1 | 0.01% | 0.02% |  |
D | 7048 | 4897 | 85 | 85 | 1.21% | 1.74% |  |
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 | 557384 | 5052.68 | 543 | 534 | 110.2 |
A | 7 | 3 | 43997 | 394.37 | 543 | 534 | 110.2 |
A | 15 | 252 | 9086 | 77.6 | 543 | 534 | 110.2 |
B | 5 | 172 | 65394 | 632.17 | 542 | 526 | 102.6 |
B | 15 | 35 | 64034 | 618.91 | 542 | 526 | 102.6 |
B | 3 | 112 | 60653 | 585.96 | 542 | 526 | 102.6 |
C | 15 | 214 | 205491 | 1628.13 | 542 | 545 | 125.9 |
C | 12 | 249 | 16292 | 125.1 | 542 | 545 | 125.9 |
C | 3 | 233 | 14880 | 113.88 | 542 | 545 | 125.9 |
D | 12 | 6 | 197766 | 1520.73 | 536 | 522 | 129.7 |
D | 13 | 249 | 145506 | 1117.81 | 536 | 522 | 129.7 |
D | 5 | 171 | 114643 | 879.86 | 536 | 522 | 129.7 |
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 |  |