Observation information
- date-obs: 2016-11-16
- time-obs: 01:06:15.378000000
- date-end: 2016-11-16
- time-end: 03:09:24.375500000
- obs_id: C02_018T01_9000000798
- exposure: 3390.6562726
- sourceid: Crab
- observer: ravibt
- ra_pnt: 310.9978
- dec_pnt: -16.051
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C02_018T01_9000000798_06142cztM0_level2.evt
| modeM0/AS1C02_018T01_9000000798_06142cztM0_level2_quad_clean.evt
|
| Size (bytes) | 448,479,360 | 69,180,480 |
| Size | 427.7 MB
| 66.0 MB
|
| Events in quadrant A | 3,223,165 | 405,914 |
| Events in quadrant B | 3,857,737 | 406,563 |
| Events in quadrant C | 3,000,420 | 424,512 |
| Events in quadrant D | 3,060,385 | 406,834 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 22 |
| B | 0 | 148 | 14 |
| C | 0 | 148 | 18 |
| D | 0 | 148 | 16 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15746 | 1826 |
| B | 0 | 18389 | 2649 |
| C | 0 | 15395 | 1798 |
| D | 0 | 15631 | 1790 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6473 | 238 | 3.676811% |
| B | 6387 | 382 | 5.980899% |
| C | 6468 | 189 | 2.922078% |
| D | 6478 | 205 | 3.164557% |
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 | 7389 | 6928 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7388 | 6862 | 62 | 62 | 0.84% | 0.90% |  |
| C | 7389 | 6923 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7389 | 6939 | 6 | 6 | 0.08% | 0.09% |  |
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 | 209616 | 1283.53 | 780 | 761 | 162.7 |
| A | 0 | 226 | 7555 | 41.75 | 780 | 761 | 162.7 |
| A | 12 | 194 | 7495 | 41.38 | 780 | 761 | 162.7 |
| B | 3 | 64 | 457709 | 3017.13 | 773 | 753 | 151.5 |
| B | 0 | 219 | 322208 | 2122.46 | 773 | 753 | 151.5 |
| B | 0 | 214 | 27769 | 178.38 | 773 | 753 | 151.5 |
| C | 13 | 61 | 6299 | 30.55 | 766 | 772 | 180.9 |
| C | 8 | 128 | 3910 | 17.34 | 766 | 772 | 180.9 |
| C | 9 | 16 | 3299 | 13.97 | 766 | 772 | 180.9 |
| D | 14 | 173 | 51275 | 266.53 | 765 | 739 | 189.6 |
| D | 13 | 169 | 33287 | 171.66 | 765 | 739 | 189.6 |
| D | 5 | 97 | 32932 | 169.79 | 765 | 739 | 189.6 |
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 |  |