Observation information
- date-obs: 2016-11-25
- time-obs: 07:49:57.993500000
- date-end: 2016-11-25
- time-end: 10:07:18.091700000
- obs_id: C02_018T02_9000000824
- exposure: 4262.838177
- 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_06280cztM0_level2.evt
| modeM0/AS1C02_018T02_9000000824_06280cztM0_level2_quad_clean.evt
|
| Size (bytes) | 500,748,480 | 86,425,920 |
| Size | 477.6 MB
| 82.4 MB
|
| Events in quadrant A | 3,539,598 | 544,963 |
| Events in quadrant B | 3,647,039 | 553,364 |
| Events in quadrant C | 3,026,857 | 554,922 |
| Events in quadrant D | 4,522,506 | 522,917 |
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 | 20 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14534 | 3 |
| B | 0 | 14894 | 2 |
| C | 0 | 13190 | 2 |
| D | 0 | 17704 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6322 | 94 | 1.486871% |
| B | 6322 | 202 | 3.195191% |
| C | 6322 | 60 | 0.949067% |
| D | 6322 | 711 | 11.246441% |
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 | 7537 | 6322 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7537 | 6322 | 97 | 97 | 1.29% | 1.53% |  |
| C | 7537 | 6322 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7536 | 6321 | 95 | 95 | 1.26% | 1.50% |  |
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 | 393781 | 2429.9 | 799 | 783 | 161.7 |
| A | 13 | 251 | 30104 | 181.29 | 799 | 783 | 161.7 |
| A | 15 | 236 | 23104 | 138.01 | 799 | 783 | 161.7 |
| B | 4 | 81 | 181740 | 1186.48 | 798 | 779 | 152.5 |
| B | 3 | 64 | 169648 | 1107.19 | 798 | 779 | 152.5 |
| B | 0 | 219 | 143327 | 934.62 | 798 | 779 | 152.5 |
| C | 10 | 22 | 11669 | 60.64 | 771 | 773 | 179.7 |
| C | 13 | 61 | 6248 | 30.47 | 771 | 773 | 179.7 |
| C | 1 | 16 | 2950 | 12.11 | 771 | 773 | 179.7 |
| D | 12 | 220 | 789464 | 4480.86 | 715 | 694 | 176.0 |
| D | 13 | 61 | 192052 | 1087.07 | 715 | 694 | 176.0 |
| D | 2 | 152 | 168852 | 955.28 | 715 | 694 | 176.0 |
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 |  |