Observation information
- date-obs: 2022-08-24
- time-obs: 14:54:34.652400000
- date-end: 2022-08-25
- time-end: 23:07:21.574900000
- obs_id: C07_014T01_9000005314
- exposure: 51539.2786108
- sourceid: Crab
- observer: arrao
- ra_pnt: 83.63321
- dec_pnt: 22.01446
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C07_014T01_9000005314cztM0_level2_bc.evt
| modeM0/AS1C07_014T01_9000005314cztM0_level2_quad_clean.evt
|
Size (bytes) | 5,388,678,720 | 1,132,660,800 |
Size | 5.0 GB
| 1.1 GB
|
Events in quadrant A | 22,928,303 | 7,529,335 |
Events in quadrant B | 24,210,270 | 7,588,718 |
Events in quadrant C | 39,984,153 | 7,038,024 |
Events in quadrant D | 70,604,362 | 6,618,712 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 179071 | 0 |
B | 0 | 190269 | 0 |
C | 0 | 247565 | 0 |
D | 0 | 343105 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 310 | 0 |
B | 0 | 310 | 0 |
C | 0 | 310 | 0 |
D | 0 | 311 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1648 | 0 |
B | 0 | 1648 | 0 |
C | 0 | 1648 | 0 |
D | 0 | 1648 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 80662 | 611 | 0.757482% |
B | 80657 | 2085 | 2.585021% |
C | 80655 | 8622 | 10.689976% |
D | 80657 | 15117 | 18.742329% |
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 | 115968 | 80682 | 68 | 68 | 0.06% | 0.08% |  |
B | 115968 | 80664 | 257 | 257 | 0.22% | 0.32% |  |
C | 115968 | 80585 | 2252 | 2252 | 1.94% | 2.79% |  |
D | 115968 | 80666 | 6522 | 6522 | 5.62% | 8.09% |  |
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 | 3476598 | 3516.34 | 4311 | 4239 | 987.5 |
A | 15 | 237 | 1116774 | 1126.63 | 4311 | 4239 | 987.5 |
A | 13 | 248 | 801084 | 806.94 | 4311 | 4239 | 987.5 |
B | 5 | 172 | 2606289 | 2921.33 | 4334 | 4264 | 890.7 |
B | 5 | 255 | 1789266 | 2004.05 | 4334 | 4264 | 890.7 |
B | 4 | 171 | 844755 | 943.63 | 4334 | 4264 | 890.7 |
C | 1 | 23 | 16853159 | 17978.13 | 3985 | 3991 | 937.2 |
C | 15 | 214 | 3049705 | 3249.79 | 3985 | 3991 | 937.2 |
C | 14 | 254 | 2854240 | 3041.23 | 3985 | 3991 | 937.2 |
D | 12 | 235 | 24112418 | 25025.69 | 3882 | 3769 | 963.4 |
D | 12 | 227 | 23747742 | 24647.14 | 3882 | 3769 | 963.4 |
D | 2 | 249 | 3534825 | 3665.37 | 3882 | 3769 | 963.4 |
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 |  |