Observation information
- date-obs: 2023-04-22
- time-obs: 17:35:12.504800000
- date-end: 2023-04-22
- time-end: 20:03:14.503300000
- obs_id: A12_102T01_9000005576
- exposure: 4657.44889492
- 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_9000005576_40910cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005576_40910cztM0_level2_quad_clean.evt
|
Size (bytes) | 317,001,600 | 88,833,600 |
Size | 302.3 MB
| 84.7 MB
|
Events in quadrant A | 2,720,106 | 603,370 |
Events in quadrant B | 2,939,859 | 597,343 |
Events in quadrant C | 2,556,647 | 599,898 |
Events in quadrant D | 3,133,120 | 542,972 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 102 | 0 |
B | 0 | 102 | 0 |
C | 0 | 102 | 0 |
D | 0 | 102 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11144 | 3 |
B | 0 | 12180 | 2 |
C | 0 | 10603 | 2 |
D | 0 | 12844 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 38 | 0 |
B | 0 | 38 | 0 |
C | 0 | 38 | 0 |
D | 0 | 39 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4936 | 11 | 0.222853% |
B | 4936 | 239 | 4.841977% |
C | 4936 | 64 | 1.296596% |
D | 4936 | 122 | 2.471637% |
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 | 7088 | 4937 | 4 | 4 | 0.06% | 0.08% |  |
B | 7088 | 4937 | 179 | 179 | 2.53% | 3.63% |  |
C | 7088 | 4937 | 47 | 47 | 0.66% | 0.95% |  |
D | 7088 | 4937 | 106 | 106 | 1.50% | 2.15% |  |
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 | 510852 | 4499.04 | 555 | 544 | 113.4 |
A | 12 | 189 | 32713 | 283.61 | 555 | 544 | 113.4 |
A | 13 | 248 | 10035 | 83.68 | 555 | 544 | 113.4 |
B | 5 | 32 | 695070 | 6647.28 | 549 | 536 | 104.5 |
B | 5 | 255 | 30549 | 287.25 | 549 | 536 | 104.5 |
B | 0 | 245 | 17572 | 163.05 | 549 | 536 | 104.5 |
C | 15 | 214 | 208438 | 1624.69 | 554 | 560 | 127.9 |
C | 0 | 10 | 159176 | 1239.68 | 554 | 560 | 127.9 |
C | 14 | 83 | 15939 | 120.2 | 554 | 560 | 127.9 |
D | 12 | 79 | 246228 | 1862.71 | 544 | 530 | 131.9 |
D | 2 | 249 | 202491 | 1531.13 | 544 | 530 | 131.9 |
D | 12 | 233 | 149236 | 1127.38 | 544 | 530 | 131.9 |
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 |  |