Observation information
- date-obs: 2024-09-14
- time-obs: 14:55:03.150400000
- date-end: 2024-09-14
- time-end: 18:04:15.136700000
- obs_id: A13_081T01_9000006428
- exposure: 10745.7320437
- 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_48484cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48484cztM0_level2_quad_clean.evt
|
Size (bytes) | 798,819,840 | 174,571,200 |
Size | 761.8 MB
| 166.5 MB
|
Events in quadrant A | 11,281,088 | 1,160,552 |
Events in quadrant B | 6,424,661 | 1,150,130 |
Events in quadrant C | 4,742,000 | 1,144,229 |
Events in quadrant D | 6,243,265 | 1,044,809 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 41739 | 2 |
B | 0 | 27431 | 0 |
C | 0 | 23263 | 0 |
D | 0 | 27154 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 228 | 0 |
B | 0 | 228 | 0 |
C | 0 | 228 | 0 |
D | 0 | 228 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 11351 | 248 | 2.184830% |
B | 11352 | 528 | 4.651163% |
C | 11352 | 30 | 0.264271% |
D | 11352 | 241 | 2.122974% |
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 | 11351 | 11351 | 2 | 2 | 0.02% | 0.02% | |
B | 11352 | 11352 | 382 | 382 | 3.37% | 3.37% | |
C | 11352 | 11352 | 2 | 2 | 0.02% | 0.02% | |
D | 11352 | 11352 | 232 | 232 | 2.04% | 2.04% | |
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 | 6550138 | 26261.11 | 1194 | 1168 | 249.4 |
A | 0 | 247 | 49099 | 192.2 | 1194 | 1168 | 249.4 |
A | 12 | 189 | 42938 | 167.5 | 1194 | 1168 | 249.4 |
B | 0 | 186 | 867424 | 3775.81 | 1176 | 1141 | 229.4 |
B | 12 | 18 | 356392 | 1548.41 | 1176 | 1141 | 229.4 |
B | 12 | 16 | 321832 | 1397.77 | 1176 | 1141 | 229.4 |
C | 0 | 207 | 29882 | 103.48 | 1180 | 1186 | 277.3 |
C | 3 | 233 | 26512 | 91.32 | 1180 | 1186 | 277.3 |
C | 14 | 254 | 20445 | 69.45 | 1180 | 1186 | 277.3 |
D | 2 | 249 | 904935 | 3074.36 | 1172 | 1134 | 294.0 |
D | 12 | 233 | 360288 | 1221.7 | 1172 | 1134 | 294.0 |
D | 13 | 84 | 262458 | 888.92 | 1172 | 1134 | 294.0 |
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 |
|
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Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
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Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
|
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Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
|
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Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
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|
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 | |