Observation information
- date-obs: 2023-01-04
- time-obs: 13:08:35.683600000
- date-end: 2023-01-04
- time-end: 15:10:15.684100000
- obs_id: A12_102T01_9000005466
- exposure: 1670.38950664
- 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_9000005466_39307cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005466_39307cztM0_level2_quad_clean.evt
|
Size (bytes) | 604,566,720 | 84,427,200 |
Size | 576.6 MB
| 80.5 MB
|
Events in quadrant A | 3,057,338 | 663,382 |
Events in quadrant B | 2,836,447 | 670,255 |
Events in quadrant C | 2,771,700 | 635,637 |
Events in quadrant D | 13,252,095 | 172,816 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 14 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12663 | 3 |
B | 0 | 12388 | 2 |
C | 0 | 11944 | 2 |
D | 0 | 43421 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 120 | 0 |
B | 0 | 120 | 0 |
C | 0 | 120 | 0 |
D | 0 | 120 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5927 | 13 | 0.219335% |
B | 5927 | 16 | 0.269951% |
C | 5927 | 3 | 0.050616% |
D | 5927 | 4537 | 76.548001% |
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 | 7239 | 5928 | 4 | 4 | 0.06% | 0.07% |  |
B | 7239 | 5928 | 6 | 6 | 0.08% | 0.10% |  |
C | 7239 | 5928 | 0 | 0 | 0.00% | 0.00% |  |
D | 7239 | 5928 | 3746 | 3746 | 51.75% | 63.19% |  |
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 | 465939 | 3480.02 | 651 | 638 | 133.7 |
A | 13 | 248 | 69385 | 514.16 | 651 | 638 | 133.7 |
A | 13 | 254 | 7164 | 48.81 | 651 | 638 | 133.7 |
B | 0 | 183 | 97360 | 787.4 | 643 | 626 | 122.9 |
B | 5 | 184 | 74049 | 597.66 | 643 | 626 | 122.9 |
B | 5 | 172 | 36334 | 290.66 | 643 | 626 | 122.9 |
C | 15 | 214 | 265424 | 1795.98 | 633 | 638 | 147.4 |
C | 14 | 254 | 12513 | 80.55 | 633 | 638 | 147.4 |
C | 9 | 187 | 9515 | 60.21 | 633 | 638 | 147.4 |
D | 12 | 235 | 11502857 | 128411.39 | 361 | 348 | 89.6 |
D | 12 | 227 | 211768 | 2360.24 | 361 | 348 | 89.6 |
D | 2 | 249 | 41858 | 463.41 | 361 | 348 | 89.6 |
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 |  |