Observation information
- date-obs: 2024-09-15
- time-obs: 09:58:48.574500000
- date-end: 2024-09-15
- time-end: 12:05:43.049200000
- obs_id: A13_081T01_9000006428
- exposure: 7321.99864054
- 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_48494cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48494cztM0_level2_quad_clean.evt
|
Size (bytes) | 508,115,520 | 118,889,280 |
Size | 484.6 MB
| 113.4 MB
|
Events in quadrant A | 7,622,517 | 778,868 |
Events in quadrant B | 3,420,399 | 817,224 |
Events in quadrant C | 3,566,344 | 767,722 |
Events in quadrant D | 3,608,625 | 705,750 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28765 | 0 |
B | 0 | 15905 | 0 |
C | 0 | 16640 | 0 |
D | 0 | 16605 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 154 | 0 |
B | 0 | 154 | 0 |
C | 0 | 154 | 0 |
D | 0 | 154 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7615 | 261 | 3.427446% |
B | 7615 | 91 | 1.195010% |
C | 7615 | 77 | 1.011162% |
D | 7616 | 73 | 0.958508% |
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 | 7615 | 7615 | 3 | 3 | 0.04% | 0.04% | |
B | 7615 | 7615 | 26 | 26 | 0.34% | 0.34% | |
C | 7615 | 7615 | 67 | 67 | 0.88% | 0.88% | |
D | 7616 | 7616 | 62 | 62 | 0.81% | 0.81% | |
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 | 4276527 | 25027.49 | 815 | 796 | 170.8 |
A | 12 | 189 | 154573 | 900.11 | 815 | 796 | 170.8 |
A | 7 | 3 | 26502 | 150.46 | 815 | 796 | 170.8 |
B | 12 | 16 | 83217 | 510.84 | 812 | 783 | 161.4 |
B | 5 | 255 | 44356 | 270.02 | 812 | 783 | 161.4 |
B | 12 | 111 | 20663 | 123.2 | 812 | 783 | 161.4 |
C | 1 | 3 | 411025 | 2198.65 | 794 | 794 | 186.6 |
C | 14 | 254 | 26296 | 136.68 | 794 | 794 | 186.6 |
C | 0 | 207 | 22224 | 114.86 | 794 | 794 | 186.6 |
D | 2 | 249 | 141408 | 710.31 | 797 | 770 | 198.0 |
D | 7 | 96 | 126692 | 635.99 | 797 | 770 | 198.0 |
D | 12 | 2 | 102083 | 511.7 | 797 | 770 | 198.0 |
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 | |