Observation information
- date-obs: 2018-09-14
- time-obs: 16:14:51.170200000
- date-end: 2018-09-14
- time-end: 18:39:42.165900000
- obs_id: T02_091T01_9000002368
- exposure: 3293.3866338
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_091T01_9000002368_16024cztM0_level2.evt
| modeM0/AS1T02_091T01_9000002368_16024cztM0_level2_quad_clean.evt
|
| Size (bytes) | 479,206,080 | 82,586,880 |
| Size | 457.0 MB
| 78.8 MB
|
| Events in quadrant A | 3,448,677 | 520,950 |
| Events in quadrant B | 3,709,585 | 528,006 |
| Events in quadrant C | 3,510,999 | 511,429 |
| Events in quadrant D | 3,417,386 | 502,307 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 25 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14062 | 3 |
| B | 0 | 15008 | 2 |
| C | 0 | 14275 | 2 |
| D | 0 | 14221 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6284 | 113 | 1.798218% |
| B | 6284 | 161 | 2.562062% |
| C | 6284 | 155 | 2.466582% |
| D | 6284 | 108 | 1.718651% |
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 | 7590 | 6285 | 6 | 6 | 0.08% | 0.10% |  |
| B | 7590 | 6285 | 27 | 27 | 0.36% | 0.43% |  |
| C | 7590 | 6285 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7590 | 6285 | 12 | 12 | 0.16% | 0.19% |  |
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 | 15 | 223 | 10906 | 56.53 | 887 | 873 | 177.5 |
| A | 9 | 143 | 9224 | 47.06 | 887 | 873 | 177.5 |
| A | 12 | 96 | 8009 | 40.21 | 887 | 873 | 177.5 |
| B | 7 | 220 | 139073 | 840.48 | 880 | 863 | 164.4 |
| B | 15 | 222 | 36138 | 214.51 | 880 | 863 | 164.4 |
| B | 0 | 189 | 30738 | 181.68 | 880 | 863 | 164.4 |
| C | 14 | 238 | 132874 | 667.64 | 853 | 862 | 197.7 |
| C | 3 | 233 | 46749 | 232.07 | 853 | 862 | 197.7 |
| C | 10 | 22 | 7147 | 31.79 | 853 | 862 | 197.7 |
| D | 2 | 152 | 45036 | 203.67 | 876 | 852 | 216.9 |
| D | 12 | 233 | 37947 | 170.99 | 876 | 852 | 216.9 |
| D | 2 | 234 | 22402 | 99.34 | 876 | 852 | 216.9 |
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 |  |