Observation information
- date-obs: 2016-11-08
- time-obs: 09:54:07.263100000
- date-end: 2016-11-10
- time-end: 01:23:51.335100000
- obs_id: A02_090T01_9000000778
- exposure: 54866.4973901
- 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_9000000778cztM0_level2.fits
| modeM0/AS1A02_090T01_9000000778cztM0_level2_quad_clean.evt
|
| Size (bytes) | 941,155,200 | 1,016,340,480 |
| Size | 897.6 MB
| 969.3 MB
|
| Events in quadrant A | 5,599,026 | 6,173,986 |
| Events in quadrant B | 5,455,937 | 6,175,677 |
| Events in quadrant C | 5,672,476 | 6,017,597 |
| Events in quadrant D | 4,832,560 | 5,477,468 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 254135 | 0 |
| B | 0 | 247292 | 0 |
| C | 0 | 209464 | 0 |
| D | 0 | 221400 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2084 | 0 |
| B | 0 | 2072 | 0 |
| C | 0 | 2072 | 0 |
| D | 0 | 2092 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 172 | 0 |
| B | 0 | 171 | 0 |
| C | 0 | 172 | 0 |
| D | 0 | 173 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 101030 | 2761 | 2.732852% |
| B | 101058 | 4056 | 4.013537% |
| C | 101318 | 820 | 0.809333% |
| D | 101189 | 1783 | 1.762049% |
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 | 142185 | 103288 | 0 | 0 | 0.00% | 0.00% |  |
| B | 142185 | 103226 | 0 | 0 | 0.00% | 0.00% |  |
| C | 142185 | 103538 | 0 | 0 | 0.00% | 0.00% |  |
| D | 142185 | 103405 | 0 | 0 | 0.00% | 0.00% |  |
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 | 14 | 188 | 5703 | 11.75 | 1454 | 1356 | 370.0 |
| A | 0 | 29 | 5506 | 11.22 | 1454 | 1356 | 370.0 |
| A | 7 | 110 | 4968 | 9.76 | 1454 | 1356 | 370.0 |
| B | 2 | 9 | 4722 | 11.72 | 1436 | 1363 | 286.6 |
| B | 12 | 226 | 3973 | 9.1 | 1436 | 1363 | 286.6 |
| B | 14 | 254 | 3759 | 8.36 | 1436 | 1363 | 286.6 |
| C | 1 | 80 | 4423 | 7.56 | 1499 | 1383 | 402.3 |
| C | 1 | 81 | 4310 | 7.27 | 1499 | 1383 | 402.3 |
| C | 12 | 241 | 3883 | 6.21 | 1499 | 1383 | 402.3 |
| D | 11 | 82 | 3667 | 6.54 | 1378 | 1253 | 369.0 |
| D | 6 | 231 | 3593 | 6.34 | 1378 | 1253 | 369.0 |
| D | 3 | 14 | 3592 | 6.34 | 1378 | 1253 | 369.0 |
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 |  |