Observation information
- date-obs: 2023-08-11
- time-obs: 04:11:48.553900000
- date-end: 2023-08-11
- time-end: 06:11:27.549800000
- obs_id: A12_102T01_9000005812
- exposure: 4894.51225585
- 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_9000005812_42546cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005812_42546cztM0_level2_quad_clean.evt
|
Size (bytes) | 306,547,200 | 88,171,200 |
Size | 292.3 MB
| 84.1 MB
|
Events in quadrant A | 2,808,017 | 599,589 |
Events in quadrant B | 2,786,916 | 607,054 |
Events in quadrant C | 2,391,701 | 581,939 |
Events in quadrant D | 2,965,422 | 526,168 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11278 | 2 |
B | 0 | 11713 | 2 |
C | 0 | 10321 | 2 |
D | 0 | 12463 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 22 | 0 |
C | 0 | 22 | 0 |
D | 0 | 22 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 102 | 0 |
B | 0 | 102 | 0 |
C | 0 | 102 | 0 |
D | 0 | 102 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5070 | 15 | 0.295858% |
B | 5070 | 112 | 2.209073% |
C | 5070 | 11 | 0.216963% |
D | 5070 | 127 | 2.504931% |
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 | 7132 | 5071 | 3 | 3 | 0.04% | 0.06% |  |
B | 7132 | 5071 | 89 | 89 | 1.25% | 1.76% |  |
C | 7132 | 5071 | 6 | 6 | 0.08% | 0.12% |  |
D | 7132 | 5071 | 95 | 95 | 1.33% | 1.87% |  |
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 | 536710 | 4658.18 | 568 | 557 | 115.1 |
A | 2 | 79 | 29932 | 255.21 | 568 | 557 | 115.1 |
A | 13 | 248 | 27102 | 230.63 | 568 | 557 | 115.1 |
B | 5 | 172 | 546958 | 5145.28 | 559 | 545 | 106.2 |
B | 0 | 245 | 25321 | 233.3 | 559 | 545 | 106.2 |
B | 15 | 85 | 15478 | 140.62 | 559 | 545 | 106.2 |
C | 15 | 214 | 212178 | 1663.5 | 545 | 549 | 127.2 |
C | 14 | 254 | 38595 | 299.06 | 545 | 549 | 127.2 |
C | 15 | 111 | 15871 | 120.44 | 545 | 549 | 127.2 |
D | 1 | 52 | 413373 | 3146.36 | 541 | 525 | 131.2 |
D | 13 | 249 | 220295 | 1674.89 | 541 | 525 | 131.2 |
D | 2 | 16 | 81104 | 614.1 | 541 | 525 | 131.2 |
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 |  |