Observation information
- date-obs: 2015-10-16
- time-obs: 12:47:35.634300000
- date-end: 2015-10-16
- time-end: 15:01:17.636900000
- obs_id: P01_126T01_9000000030
- exposure: 4960.26443045
- sourceid: Crab-SSM1-P1
- observer: ramadevi
- ra_pnt: 80.3923
- dec_pnt: -68.1274
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_126T01_9000000030_00274cztM0_level2.evt
| modeM0/AS1P01_126T01_9000000030_00274cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,002,286,080 | 80,055,360 |
| Size | 955.9 MB
| 76.3 MB
|
| Events in quadrant A | 7,998,323 | 505,885 |
| Events in quadrant B | 7,228,354 | 521,065 |
| Events in quadrant C | 6,520,787 | 507,363 |
| Events in quadrant D | 8,208,153 | 469,824 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28034 | 3 |
| B | 0 | 25708 | 2 |
| C | 0 | 23628 | 2 |
| D | 0 | 28786 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 21 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6013 | 111 | 1.846000% |
| B | 6013 | 2 | 0.033261% |
| C | 6013 | 6 | 0.099784% |
| D | 6013 | 495 | 8.232164% |
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 | 7718 | 6014 | 590 | 590 | 7.64% | 9.81% |  |
| B | 7718 | 6014 | 111 | 111 | 1.44% | 1.85% |  |
| C | 7718 | 6014 | 55 | 55 | 0.71% | 0.91% |  |
| D | 7718 | 6014 | 926 | 926 | 12.00% | 15.40% |  |
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 | 12 | 149 | 683987 | 1641.41 | 1868 | 1849 | 415.6 |
| A | 15 | 66 | 41172 | 94.62 | 1868 | 1849 | 415.6 |
| A | 15 | 17 | 35054 | 79.9 | 1868 | 1849 | 415.6 |
| B | 5 | 46 | 37165 | 81.66 | 1859 | 1870 | 432.2 |
| B | 5 | 2 | 31228 | 67.93 | 1859 | 1870 | 432.2 |
| B | 0 | 157 | 24620 | 52.64 | 1859 | 1870 | 432.2 |
| C | 3 | 159 | 36522 | 76.73 | 1635 | 1690 | 454.0 |
| C | 14 | 48 | 19886 | 40.08 | 1635 | 1690 | 454.0 |
| C | 9 | 68 | 16421 | 32.45 | 1635 | 1690 | 454.0 |
| D | 13 | 7 | 1936485 | 4021.6 | 1548 | 1608 | 481.1 |
| D | 1 | 4 | 105726 | 216.41 | 1548 | 1608 | 481.1 |
| D | 1 | 7 | 42658 | 85.32 | 1548 | 1608 | 481.1 |
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 |  |