Observation information
- date-obs: 2020-09-15
- time-obs: 23:30:01.341400000
- date-end: 2020-09-16
- time-end: 03:44:36.317200000
- obs_id: A09_145T01_9000003870
- exposure: 6891.2167995
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A09_145T01_9000003870cztM0_level2_bc.evt
| modeM0/AS1A09_145T01_9000003870cztM0_level2_quad_clean.evt
|
Size (bytes) | 478,062,720 | 178,545,600 |
Size | 455.9 MB
| 170.3 MB
|
Events in quadrant A | 3,399,864 | 1,174,424 |
Events in quadrant B | 2,906,576 | 1,194,135 |
Events in quadrant C | 2,725,208 | 1,145,351 |
Events in quadrant D | 4,651,199 | 1,094,719 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 236 | 0 |
B | 0 | 236 | 0 |
C | 0 | 236 | 0 |
D | 0 | 236 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 38 | 0 |
B | 0 | 38 | 0 |
C | 0 | 38 | 0 |
D | 0 | 38 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26967 | 0 |
B | 0 | 35417 | 0 |
C | 0 | 24975 | 0 |
D | 0 | 32520 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 11557 | 179 | 1.548845% |
B | 11557 | 1873 | 16.206628% |
C | 11557 | 155 | 1.341179% |
D | 11557 | 873 | 7.553863% |
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 | 14167 | 11558 | 5 | 5 | 0.04% | 0.04% |  |
B | 14166 | 11556 | 3 | 3 | 0.02% | 0.03% |  |
C | 14167 | 11557 | 0 | 0 | 0.00% | 0.00% |  |
D | 14167 | 11556 | 88 | 88 | 0.62% | 0.76% |  |
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 | 0 | 13 | 603017 | 3815.81 | 724 | 715 | 157.8 |
A | 13 | 254 | 18029 | 109.69 | 724 | 715 | 157.8 |
A | 12 | 96 | 7063 | 40.22 | 724 | 715 | 157.8 |
B | 10 | 246 | 49580 | 365.81 | 702 | 694 | 133.6 |
B | 5 | 31 | 47060 | 346.95 | 702 | 694 | 133.6 |
B | 5 | 15 | 33948 | 248.84 | 702 | 694 | 133.6 |
C | 2 | 16 | 12155 | 68.98 | 701 | 705 | 166.0 |
C | 15 | 208 | 11183 | 63.13 | 701 | 705 | 166.0 |
C | 14 | 176 | 5897 | 31.28 | 701 | 705 | 166.0 |
D | 7 | 80 | 1377248 | 8907.53 | 673 | 661 | 154.5 |
D | 2 | 250 | 287299 | 1854.76 | 673 | 661 | 154.5 |
D | 11 | 176 | 212343 | 1369.74 | 673 | 661 | 154.5 |
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 |  |