Observation information
- date-obs: 2018-09-15
- time-obs: 01:06:36.151100000
- date-end: 2018-09-15
- time-end: 06:08:32.137900000
- obs_id: T02_091T01_9000002368
- exposure: 10146.2381398
- 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_16031cztM0_level2.evt
| modeM0/AS1T02_091T01_9000002368_16031cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,139,650,560 | 222,834,240 |
| Size | 1.1 GB
| 212.5 MB
|
| Events in quadrant A | 8,277,474 | 1,411,749 |
| Events in quadrant B | 8,880,102 | 1,430,365 |
| Events in quadrant C | 8,248,180 | 1,383,854 |
| Events in quadrant D | 7,959,039 | 1,351,836 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 344 | 0 |
| B | 0 | 344 | 0 |
| C | 0 | 344 | 0 |
| D | 0 | 344 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 35695 | 3 |
| B | 0 | 37575 | 3 |
| C | 0 | 35413 | 3 |
| D | 0 | 35592 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 16992 | 229 | 1.347693% |
| B | 16992 | 403 | 2.371704% |
| C | 16992 | 286 | 1.683145% |
| D | 16992 | 109 | 0.641478% |
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 | 18118 | 16993 | 29 | 29 | 0.16% | 0.17% |  |
| B | 18118 | 16993 | 66 | 66 | 0.36% | 0.39% |  |
| C | 18118 | 16993 | 1 | 1 | 0.01% | 0.01% |  |
| D | 18118 | 16995 | 7 | 7 | 0.04% | 0.04% |  |
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 | 174 | 120364 | 277.81 | 2097 | 2054 | 425.9 |
| A | 9 | 143 | 77101 | 176.22 | 2097 | 2054 | 425.9 |
| A | 0 | 226 | 18348 | 38.26 | 2097 | 2054 | 425.9 |
| B | 15 | 222 | 310803 | 771.76 | 2094 | 2047 | 400.1 |
| B | 7 | 220 | 100796 | 246.83 | 2094 | 2047 | 400.1 |
| B | 4 | 216 | 67209 | 162.88 | 2094 | 2047 | 400.1 |
| C | 14 | 238 | 309539 | 652.04 | 2010 | 2033 | 471.6 |
| C | 3 | 233 | 78354 | 161.83 | 2010 | 2033 | 471.6 |
| C | 13 | 61 | 14487 | 26.41 | 2010 | 2033 | 471.6 |
| D | 2 | 152 | 180466 | 354.06 | 2039 | 1982 | 504.1 |
| D | 2 | 234 | 62218 | 119.49 | 2039 | 1982 | 504.1 |
| D | 7 | 38 | 33488 | 62.5 | 2039 | 1982 | 504.1 |
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 |  |