Observation information
- date-obs: 2024-09-15
- time-obs: 06:39:05.730200000
- date-end: 2024-09-15
- time-end: 08:35:25.063600000
- obs_id: A13_081T01_9000006428
- exposure: 5740.77977288
- 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/AS1A13_081T01_9000006428_48492cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48492cztM0_level2_quad_clean.evt
|
Size (bytes) | 402,552,000 | 94,927,680 |
Size | 383.9 MB
| 90.5 MB
|
Events in quadrant A | 6,164,768 | 617,231 |
Events in quadrant B | 2,657,049 | 651,673 |
Events in quadrant C | 2,491,790 | 620,988 |
Events in quadrant D | 3,118,497 | 563,084 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22828 | 1 |
B | 0 | 12461 | 1 |
C | 0 | 12282 | 1 |
D | 0 | 13864 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9 | 0 |
B | 0 | 9 | 0 |
C | 0 | 9 | 0 |
D | 0 | 9 | 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 | 6035 | 253 | 4.192212% |
B | 6036 | 115 | 1.905235% |
C | 6036 | 48 | 0.795229% |
D | 6035 | 107 | 1.772991% |
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 | 6980 | 6035 | 5 | 5 | 0.07% | 0.08% | |
B | 6981 | 6036 | 4 | 4 | 0.06% | 0.07% | |
C | 6981 | 6036 | 0 | 0 | 0.00% | 0.00% | |
D | 6980 | 6035 | 41 | 41 | 0.59% | 0.68% | |
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 | 3528298 | 26542.21 | 639 | 624 | 132.9 |
A | 12 | 189 | 143953 | 1078.4 | 639 | 624 | 132.9 |
A | 13 | 254 | 11481 | 81.68 | 639 | 624 | 132.9 |
B | 12 | 16 | 55056 | 424.76 | 643 | 622 | 128.2 |
B | 12 | 111 | 16128 | 121.0 | 643 | 622 | 128.2 |
B | 11 | 111 | 14993 | 112.14 | 643 | 622 | 128.2 |
C | 1 | 3 | 12127 | 77.97 | 630 | 630 | 147.5 |
C | 3 | 233 | 7816 | 48.73 | 630 | 630 | 147.5 |
C | 14 | 67 | 7181 | 44.43 | 630 | 630 | 147.5 |
D | 7 | 38 | 279320 | 1781.68 | 629 | 608 | 156.4 |
D | 2 | 249 | 254510 | 1623.08 | 629 | 608 | 156.4 |
D | 2 | 120 | 57723 | 365.11 | 629 | 608 | 156.4 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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|
Quadrant B |
Quadrant D |
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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 | |