Observation information
- date-obs: 2017-01-19
- time-obs: 02:58:15.976600000
- date-end: 2017-01-19
- time-end: 05:24:44.981400000
- obs_id: A02_090T01_9000000970
- exposure: 2991.80017542
- sourceid: Crab
- observer: tanmoy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_090T01_9000000970_07091cztM0_level2.evt
| modeM0/AS1A02_090T01_9000000970_07091cztM0_level2_quad_clean.evt
|
| Size (bytes) | 446,014,080 | 75,890,880 |
| Size | 425.4 MB
| 72.4 MB
|
| Events in quadrant A | 3,238,034 | 464,258 |
| Events in quadrant B | 3,450,992 | 476,022 |
| Events in quadrant C | 3,191,267 | 463,027 |
| Events in quadrant D | 3,179,519 | 435,177 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13653 | 3 |
| B | 0 | 14309 | 2 |
| C | 0 | 13611 | 2 |
| D | 0 | 13922 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 23 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6595 | 27 | 0.409401% |
| B | 6595 | 42 | 0.636846% |
| C | 6595 | 12 | 0.181956% |
| D | 6595 | 35 | 0.530705% |
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 | 7865 | 6596 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7865 | 6596 | 6 | 6 | 0.08% | 0.09% |  |
| C | 7865 | 6596 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7865 | 6596 | 26 | 26 | 0.33% | 0.39% |  |
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 | 13 | 14 | 14899 | 83.45 | 835 | 820 | 168.7 |
| A | 0 | 226 | 7936 | 42.18 | 835 | 820 | 168.7 |
| A | 12 | 194 | 7618 | 40.29 | 835 | 820 | 168.7 |
| B | 0 | 219 | 75057 | 466.42 | 848 | 832 | 159.1 |
| B | 0 | 214 | 71935 | 446.81 | 848 | 832 | 159.1 |
| B | 0 | 199 | 16125 | 96.1 | 848 | 832 | 159.1 |
| C | 9 | 68 | 7323 | 34.64 | 813 | 819 | 187.8 |
| C | 14 | 67 | 7280 | 34.41 | 813 | 819 | 187.8 |
| C | 13 | 61 | 6360 | 29.51 | 813 | 819 | 187.8 |
| D | 12 | 233 | 93294 | 469.19 | 803 | 780 | 197.2 |
| D | 13 | 105 | 37883 | 188.17 | 803 | 780 | 197.2 |
| D | 2 | 14 | 22721 | 111.28 | 803 | 780 | 197.2 |
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 |  |