Observation information
- date-obs: 2024-08-22
- time-obs: 17:44:45.878700000
- date-end: 2024-08-22
- time-end: 19:48:51.867700000
- obs_id: C09_009T01_9000006406
- exposure: 472.378649652
- sourceid: Crab
- observer: arrao
- ra_pnt: 83.63321
- dec_pnt: 22.01446
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_009T01_9000006406_48143cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48143cztM0_level2_quad_clean.evt
|
Size (bytes) | 472,224,960 | 89,277,120 |
Size | 450.3 MB
| 85.1 MB
|
Events in quadrant A | 7,358,491 | 775,717 |
Events in quadrant B | 1,121,552 | 44,430 |
Events in quadrant C | 3,077,681 | 763,361 |
Events in quadrant D | 5,425,293 | 675,646 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26304 | 1 |
B | 0 | 6868 | 1 |
C | 0 | 13277 | 1 |
D | 0 | 20315 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6316 | 447 | 7.077264% |
B | 6316 | 6316 | 100.000000% |
C | 6317 | 82 | 1.298085% |
D | 6317 | 533 | 8.437549% |
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 | 7446 | 6317 | 77 | 77 | 1.03% | 1.22% | |
B | 7446 | 6296 | 0 | 0 | 0.00% | 0.00% | |
C | 7447 | 6318 | 6 | 6 | 0.08% | 0.09% | |
D | 7447 | 6318 | 425 | 425 | 5.71% | 6.73% | |
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 | 4329029 | 26955.37 | 765 | 750 | 160.6 |
A | 10 | 248 | 35956 | 219.25 | 765 | 750 | 160.6 |
A | 3 | 14 | 21933 | 131.92 | 765 | 750 | 160.6 |
B | 2 | 177 | 870663 | 78111.4 | 46 | 44 | 11.1 |
B | 4 | 21 | 21318 | 1908.69 | 46 | 44 | 11.1 |
B | 0 | 200 | 20501 | 1835.39 | 46 | 44 | 11.1 |
C | 12 | 2 | 53058 | 286.91 | 766 | 772 | 182.2 |
C | 10 | 187 | 14478 | 75.21 | 766 | 772 | 182.2 |
C | 12 | 249 | 13086 | 67.57 | 766 | 772 | 182.2 |
D | 12 | 2 | 1372368 | 7292.67 | 745 | 724 | 188.1 |
D | 2 | 37 | 625728 | 3322.98 | 745 | 724 | 188.1 |
D | 2 | 165 | 166543 | 881.62 | 745 | 724 | 188.1 |
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 | |