Observation information
- date-obs: 2023-10-17
- time-obs: 05:54:38.329600000
- date-end: 2023-10-17
- time-end: 08:09:52.323600000
- obs_id: A12_102T01_9000005876
- exposure: 934.54956311
- 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_9000005876_43541cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005876_43541cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,734,675,840 | 69,275,520 |
Size | 1.6 GB
| 66.1 MB
|
Events in quadrant A | 12,097,710 | 750,945 |
Events in quadrant B | 16,201,072 | 490,848 |
Events in quadrant C | 19,957,631 | 259,910 |
Events in quadrant D | 15,364,282 | 48,326 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 156 | 0 |
B | 0 | 156 | 0 |
C | 0 | 156 | 0 |
D | 0 | 156 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 4 | 0 |
B | 0 | 4 | 0 |
C | 0 | 4 | 0 |
D | 0 | 4 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 41363 | 1 |
B | 0 | 53423 | 1 |
C | 0 | 64442 | 1 |
D | 0 | 50959 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7709 | 2715 | 35.218576% |
B | 7709 | 5463 | 70.865222% |
C | 7710 | 7581 | 98.326848% |
D | 7710 | 7710 | 100.000000% |
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 | 8114 | 7710 | 1828 | 1828 | 22.53% | 23.71% |  |
B | 8113 | 7708 | 4922 | 4922 | 60.67% | 63.86% |  |
C | 8114 | 7709 | 7115 | 7115 | 87.69% | 92.29% |  |
D | 8114 | 7709 | 4446 | 4446 | 54.79% | 57.67% |  |
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 | 0 | 228 | 5491858 | 34301.73 | 768 | 754 | 160.1 |
A | 0 | 227 | 1003543 | 6264.2 | 768 | 754 | 160.1 |
A | 10 | 83 | 810048 | 5055.48 | 768 | 754 | 160.1 |
B | 3 | 42 | 12000640 | 119402.21 | 517 | 504 | 100.5 |
B | 3 | 25 | 975685 | 9703.12 | 517 | 504 | 100.5 |
B | 5 | 235 | 397538 | 3950.52 | 517 | 504 | 100.5 |
C | 15 | 174 | 6481797 | 96884.2 | 280 | 282 | 66.9 |
C | 15 | 142 | 6403110 | 95708.0 | 280 | 282 | 66.9 |
C | 15 | 158 | 2325970 | 34763.85 | 280 | 282 | 66.9 |
D | 4 | 216 | 9797694 | 267969.55 | 75 | 70 | 36.6 |
D | 4 | 201 | 1739588 | 47576.62 | 75 | 70 | 36.6 |
D | 4 | 212 | 901217 | 24646.79 | 75 | 70 | 36.6 |
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 |  |