Observation information
- date-obs: 2018-03-01
- time-obs: 10:38:35.637100000
- date-end: 2018-03-01
- time-end: 19:27:00.650200000
- obs_id: C03_023T01_9000001930
- exposure: 17736.7654015
- sourceid: Crab_SSM1
- observer: ramadevi
- ra_pnt: 216.8708
- dec_pnt: -12.5862
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C03_023T01_9000001930_13108cztM0_level2.evt
| modeM0/AS1C03_023T01_9000001930_13108cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,478,283,200 | 341,389,440 |
| Size | 2.3 GB
| 325.6 MB
|
| Events in quadrant A | 13,410,460 | 2,144,241 |
| Events in quadrant B | 21,710,599 | 2,128,483 |
| Events in quadrant C | 12,333,530 | 2,177,454 |
| Events in quadrant D | 25,758,639 | 2,009,003 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 57825 | 5 |
| B | 0 | 82796 | 4 |
| C | 0 | 55716 | 4 |
| D | 0 | 95787 | 4 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 556 | 0 |
| B | 0 | 556 | 0 |
| C | 0 | 556 | 0 |
| D | 0 | 556 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 27337 | 347 | 1.269342% |
| B | 27338 | 3939 | 14.408516% |
| C | 27338 | 197 | 0.720609% |
| D | 27338 | 3251 | 11.891872% |
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 | 31706 | 27343 | 48 | 48 | 0.15% | 0.18% |  |
| B | 31706 | 27344 | 2435 | 2435 | 7.68% | 8.91% |  |
| C | 31706 | 27344 | 2 | 2 | 0.01% | 0.01% |  |
| D | 31706 | 27344 | 2507 | 2507 | 7.91% | 9.17% |  |
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 | 189 | 417313 | 632.27 | 3205 | 3132 | 655.1 |
| A | 15 | 223 | 282886 | 427.06 | 3205 | 3132 | 655.1 |
| A | 15 | 239 | 121516 | 180.72 | 3205 | 3132 | 655.1 |
| B | 4 | 239 | 5781514 | 10292.41 | 2956 | 2877 | 561.4 |
| B | 0 | 85 | 3687018 | 6561.87 | 2956 | 2877 | 561.4 |
| B | 3 | 64 | 424869 | 751.62 | 2956 | 2877 | 561.4 |
| C | 13 | 61 | 23015 | 27.23 | 3147 | 3165 | 729.1 |
| C | 8 | 128 | 19109 | 21.87 | 3147 | 3165 | 729.1 |
| C | 8 | 112 | 17819 | 20.1 | 3147 | 3165 | 729.1 |
| D | 13 | 122 | 6489530 | 8913.77 | 3003 | 2917 | 727.7 |
| D | 1 | 52 | 5446406 | 7480.33 | 3003 | 2917 | 727.7 |
| D | 10 | 157 | 1467073 | 2012.01 | 3003 | 2917 | 727.7 |
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 |  |