Observation information
- date-obs: 2018-03-14
- time-obs: 01:25:15.802800000
- date-end: 2018-03-14
- time-end: 03:34:26.799600000
- obs_id: T02_013T01_9000001976
- exposure: 3134.29383373
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_013T01_9000001976_13291cztM0_level2.evt
| modeM0/AS1T02_013T01_9000001976_13291cztM0_level2_quad_clean.evt
|
| Size (bytes) | 614,039,040 | 75,078,720 |
| Size | 585.6 MB
| 71.6 MB
|
| Events in quadrant A | 3,726,456 | 528,596 |
| Events in quadrant B | 6,005,934 | 207,846 |
| Events in quadrant C | 3,693,138 | 530,534 |
| Events in quadrant D | 4,661,649 | 484,012 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15723 | 2 |
| B | 0 | 22753 | 1 |
| C | 0 | 15947 | 1 |
| D | 0 | 18995 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7486 | 120 | 1.602992% |
| B | 7486 | 2501 | 33.409030% |
| C | 7486 | 96 | 1.282394% |
| D | 7486 | 395 | 5.276516% |
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 | 7752 | 7488 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7752 | 7487 | 667 | 667 | 8.60% | 8.91% |  |
| C | 7752 | 7488 | 21 | 21 | 0.27% | 0.28% |  |
| D | 7752 | 7488 | 262 | 262 | 3.38% | 3.50% |  |
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 | 159757 | 844.15 | 915 | 894 | 188.2 |
| A | 9 | 143 | 24295 | 124.35 | 915 | 894 | 188.2 |
| A | 15 | 69 | 10606 | 51.61 | 915 | 894 | 188.2 |
| B | 4 | 239 | 3445197 | 28907.48 | 618 | 603 | 119.2 |
| B | 10 | 245 | 44406 | 367.6 | 618 | 603 | 119.2 |
| B | 4 | 142 | 18181 | 147.52 | 618 | 603 | 119.2 |
| C | 15 | 208 | 143744 | 682.9 | 897 | 903 | 209.2 |
| C | 14 | 234 | 54403 | 255.77 | 897 | 903 | 209.2 |
| C | 13 | 61 | 6590 | 27.19 | 897 | 903 | 209.2 |
| D | 1 | 52 | 656650 | 3100.35 | 870 | 846 | 211.5 |
| D | 8 | 195 | 242792 | 1143.81 | 870 | 846 | 211.5 |
| D | 13 | 249 | 239056 | 1126.15 | 870 | 846 | 211.5 |
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 |  |