Observation information
- date-obs: 2018-01-30
- time-obs: 02:11:36.279000000
- date-end: 2018-01-30
- time-end: 04:26:35.026900000
- obs_id: A04_174T01_9000001876
- exposure: 4199.66008387
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001876_12655cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12655cztM0_level2_quad_clean.evt
|
| Size (bytes) | 640,454,400 | 95,832,000 |
| Size | 610.8 MB
| 91.4 MB
|
| Events in quadrant A | 3,655,217 | 607,974 |
| Events in quadrant B | 5,145,495 | 574,905 |
| Events in quadrant C | 3,755,279 | 611,949 |
| Events in quadrant D | 6,315,021 | 567,882 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 4 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16127 | 3 |
| B | 0 | 20345 | 2 |
| C | 0 | 16454 | 2 |
| D | 0 | 24192 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7756 | 113 | 1.456937% |
| B | 7756 | 620 | 7.993811% |
| C | 7756 | 89 | 1.147499% |
| D | 7756 | 576 | 7.426509% |
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 | 7992 | 7758 | 3 | 3 | 0.04% | 0.04% |  |
| B | 7992 | 7757 | 392 | 392 | 4.90% | 5.05% |  |
| C | 7992 | 7758 | 12 | 12 | 0.15% | 0.15% |  |
| D | 7992 | 7758 | 487 | 487 | 6.09% | 6.28% |  |
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 | 9 | 143 | 20504 | 101.79 | 936 | 915 | 192.4 |
| A | 12 | 189 | 18429 | 91.01 | 936 | 915 | 192.4 |
| A | 13 | 248 | 16090 | 78.86 | 936 | 915 | 192.4 |
| B | 4 | 239 | 1400600 | 7915.69 | 911 | 889 | 176.8 |
| B | 3 | 64 | 48443 | 268.93 | 911 | 889 | 176.8 |
| B | 3 | 209 | 47233 | 262.09 | 911 | 889 | 176.8 |
| C | 15 | 208 | 155020 | 719.03 | 919 | 927 | 214.3 |
| C | 12 | 2 | 8346 | 34.62 | 919 | 927 | 214.3 |
| C | 14 | 234 | 8191 | 33.9 | 919 | 927 | 214.3 |
| D | 1 | 52 | 2229032 | 10334.01 | 882 | 856 | 215.6 |
| D | 10 | 157 | 665369 | 3081.93 | 882 | 856 | 215.6 |
| D | 13 | 249 | 30324 | 136.67 | 882 | 856 | 215.6 |
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 |  |