Observation information
- date-obs: 2024-09-15
- time-obs: 08:19:29.649700000
- date-end: 2024-09-15
- time-end: 10:21:02.056000000
- obs_id: A13_081T01_9000006428
- exposure: 6354.27059263
- 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_48493cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48493cztM0_level2_quad_clean.evt
|
Size (bytes) | 446,235,840 | 103,884,480 |
Size | 425.6 MB
| 99.1 MB
|
Events in quadrant A | 6,750,501 | 675,067 |
Events in quadrant B | 2,936,751 | 714,256 |
Events in quadrant C | 2,879,803 | 678,124 |
Events in quadrant D | 3,426,878 | 608,054 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25262 | 1 |
B | 0 | 13878 | 1 |
C | 0 | 14026 | 1 |
D | 0 | 15403 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 6 | 0 |
B | 0 | 6 | 0 |
C | 0 | 6 | 0 |
D | 0 | 6 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 136 | 0 |
B | 0 | 136 | 0 |
C | 0 | 136 | 0 |
D | 0 | 136 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6743 | 344 | 5.101587% |
B | 6744 | 191 | 2.832147% |
C | 6744 | 116 | 1.720047% |
D | 6744 | 260 | 3.855279% |
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 | 7293 | 6743 | 8 | 8 | 0.11% | 0.12% | |
B | 7294 | 6744 | 5 | 5 | 0.07% | 0.07% | |
C | 7294 | 6744 | 23 | 23 | 0.32% | 0.34% | |
D | 7294 | 6744 | 119 | 119 | 1.63% | 1.76% | |
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 | 3818131 | 25680.31 | 709 | 692 | 148.7 |
A | 12 | 189 | 171935 | 1151.97 | 709 | 692 | 148.7 |
A | 13 | 254 | 12906 | 82.16 | 709 | 692 | 148.7 |
B | 12 | 16 | 61707 | 433.2 | 715 | 692 | 140.8 |
B | 5 | 255 | 24129 | 166.4 | 715 | 692 | 140.8 |
B | 12 | 111 | 18239 | 124.58 | 715 | 692 | 140.8 |
C | 1 | 3 | 136336 | 829.84 | 698 | 700 | 163.4 |
C | 14 | 67 | 7811 | 43.51 | 698 | 700 | 163.4 |
C | 3 | 233 | 7039 | 38.78 | 698 | 700 | 163.4 |
D | 7 | 38 | 377892 | 2149.46 | 694 | 670 | 175.5 |
D | 2 | 249 | 259695 | 1475.96 | 694 | 670 | 175.5 |
D | 2 | 233 | 36564 | 204.53 | 694 | 670 | 175.5 |
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 | |