Observation information
- date-obs: 2018-05-14
- time-obs: 18:02:38.584000000
- date-end: 2018-05-14
- time-end: 20:06:31.576300000
- obs_id: C03_022T01_9000002098
- exposure: 3777.39596405
- sourceid: Crab_SSM3
- observer: ramadevi
- ra_pnt: 338.689
- dec_pnt: 9.7603
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C03_022T01_9000002098_14204cztM0_level2.evt
| modeM0/AS1C03_022T01_9000002098_14204cztM0_level2_quad_clean.evt
|
| Size (bytes) | 602,435,520 | 78,295,680 |
| Size | 574.5 MB
| 74.7 MB
|
| Events in quadrant A | 3,623,723 | 484,253 |
| Events in quadrant B | 4,954,335 | 474,965 |
| Events in quadrant C | 3,664,831 | 459,927 |
| Events in quadrant D | 5,520,034 | 456,781 |
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 | 3 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14960 | 2 |
| B | 0 | 19304 | 1 |
| C | 0 | 14972 | 1 |
| D | 0 | 21140 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7108 | 73 | 1.027012% |
| B | 7108 | 708 | 9.960608% |
| C | 7108 | 67 | 0.942600% |
| D | 7108 | 761 | 10.706246% |
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 | 7434 | 7110 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7434 | 7110 | 351 | 351 | 4.72% | 4.94% |  |
| C | 7434 | 7110 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7434 | 7110 | 504 | 504 | 6.78% | 7.09% |  |
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 | 8 | 15 | 167662 | 932.29 | 872 | 854 | 178.9 |
| A | 12 | 189 | 61070 | 336.55 | 872 | 854 | 178.9 |
| A | 15 | 69 | 16381 | 86.78 | 872 | 854 | 178.9 |
| B | 0 | 182 | 1297175 | 8069.6 | 830 | 810 | 160.6 |
| B | 4 | 142 | 164343 | 1017.96 | 830 | 810 | 160.6 |
| B | 15 | 185 | 40088 | 244.5 | 830 | 810 | 160.6 |
| C | 3 | 233 | 384825 | 1998.02 | 830 | 833 | 192.2 |
| C | 0 | 207 | 43354 | 221.25 | 830 | 833 | 192.2 |
| C | 13 | 61 | 6109 | 27.45 | 830 | 833 | 192.2 |
| D | 13 | 122 | 1240812 | 6501.02 | 783 | 763 | 190.7 |
| D | 8 | 195 | 242846 | 1269.13 | 783 | 763 | 190.7 |
| D | 5 | 222 | 229703 | 1200.23 | 783 | 763 | 190.7 |
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 |  |