Observation information
- date-obs: 2016-11-25
- time-obs: 04:16:12.110200000
- date-end: 2016-11-25
- time-end: 06:40:06.103200000
- obs_id: C02_018T02_9000000824
- exposure: 3479.5471974
- sourceid: Crab
- observer: ravibt
- ra_pnt: 340.1654
- dec_pnt: -6.418306
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C02_018T02_9000000824_06277cztM0_level2.evt
| modeM0/AS1C02_018T02_9000000824_06277cztM0_level2_quad_clean.evt
|
| Size (bytes) | 549,135,360 | 70,450,560 |
| Size | 523.7 MB
| 67.2 MB
|
| Events in quadrant A | 3,774,275 | 413,915 |
| Events in quadrant B | 3,755,980 | 420,565 |
| Events in quadrant C | 3,165,030 | 428,301 |
| Events in quadrant D | 5,476,005 | 397,980 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15339 | 3 |
| B | 0 | 15547 | 2 |
| C | 0 | 14035 | 2 |
| D | 0 | 20863 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6774 | 113 | 1.668143% |
| B | 6774 | 250 | 3.690582% |
| C | 6774 | 82 | 1.210511% |
| D | 6774 | 447 | 6.598760% |
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 | 8634 | 6774 | 6 | 6 | 0.07% | 0.09% |  |
| B | 8634 | 6774 | 108 | 108 | 1.25% | 1.59% |  |
| C | 8634 | 6774 | 1 | 1 | 0.01% | 0.01% |  |
| D | 8634 | 6774 | 343 | 343 | 3.97% | 5.06% |  |
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 | 400710 | 2405.17 | 819 | 803 | 166.3 |
| A | 15 | 236 | 156759 | 937.97 | 819 | 803 | 166.3 |
| A | 13 | 251 | 40406 | 238.18 | 819 | 803 | 166.3 |
| B | 3 | 64 | 406059 | 2542.13 | 820 | 799 | 159.4 |
| B | 0 | 219 | 136320 | 850.1 | 820 | 799 | 159.4 |
| B | 4 | 81 | 28251 | 172.2 | 820 | 799 | 159.4 |
| C | 9 | 54 | 37163 | 194.55 | 801 | 806 | 186.9 |
| C | 13 | 61 | 6329 | 29.55 | 801 | 806 | 186.9 |
| C | 8 | 222 | 3133 | 12.45 | 801 | 806 | 186.9 |
| D | 12 | 220 | 1248562 | 6420.02 | 786 | 762 | 194.4 |
| D | 12 | 221 | 523423 | 2689.13 | 786 | 762 | 194.4 |
| D | 12 | 110 | 201189 | 1031.21 | 786 | 762 | 194.4 |
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 |  |