Observation information
- date-obs: 2023-08-11
- time-obs: 14:30:08.536800000
- date-end: 2023-08-11
- time-end: 16:40:09.533000000
- obs_id: A12_102T01_9000005812
- exposure: 5742.20215803
- 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_42552cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005812_42552cztM0_level2_quad_clean.evt
|
Size (bytes) | 361,474,560 | 96,053,760 |
Size | 344.7 MB
| 91.6 MB
|
Events in quadrant A | 3,133,474 | 644,343 |
Events in quadrant B | 2,608,325 | 652,870 |
Events in quadrant C | 2,697,432 | 625,165 |
Events in quadrant D | 4,475,647 | 568,123 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13043 | 2 |
B | 0 | 12247 | 2 |
C | 0 | 12040 | 2 |
D | 0 | 17834 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 18 | 0 |
B | 0 | 19 | 0 |
C | 0 | 19 | 0 |
D | 0 | 19 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 122 | 0 |
B | 0 | 122 | 0 |
C | 0 | 122 | 0 |
D | 0 | 122 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5981 | 13 | 0.217355% |
B | 5981 | 19 | 0.317673% |
C | 5981 | 6 | 0.100318% |
D | 5981 | 222 | 3.711754% |
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 | 7263 | 5982 | 5 | 5 | 0.07% | 0.08% |  |
B | 7263 | 5982 | 6 | 6 | 0.08% | 0.10% |  |
C | 7263 | 5982 | 2 | 2 | 0.03% | 0.03% |  |
D | 7263 | 5982 | 174 | 174 | 2.40% | 2.91% |  |
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 | 617536 | 4750.35 | 633 | 617 | 129.9 |
A | 2 | 79 | 41679 | 316.18 | 633 | 617 | 129.9 |
A | 15 | 223 | 9884 | 71.36 | 633 | 617 | 129.9 |
B | 0 | 186 | 58344 | 477.64 | 628 | 609 | 120.9 |
B | 0 | 245 | 27129 | 219.4 | 628 | 609 | 120.9 |
B | 5 | 172 | 23418 | 188.7 | 628 | 609 | 120.9 |
C | 15 | 214 | 250930 | 1737.26 | 618 | 621 | 144.1 |
C | 12 | 249 | 18756 | 125.87 | 618 | 621 | 144.1 |
C | 3 | 233 | 8969 | 57.94 | 618 | 621 | 144.1 |
D | 2 | 16 | 1125242 | 7450.77 | 613 | 593 | 150.9 |
D | 13 | 249 | 258343 | 1707.59 | 613 | 593 | 150.9 |
D | 1 | 47 | 232714 | 1537.79 | 613 | 593 | 150.9 |
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 |  |