Observation information
- date-obs: 2017-05-16
- time-obs: 14:38:52.564900000
- date-end: 2017-05-16
- time-end: 15:52:54.138000000
- obs_id: G07_087T01_9000001228
- exposure: 2375.93030836
- sourceid: centaurus A
- observer: sreekumar
- ra_pnt: 201.3651
- dec_pnt: -43.01911
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_087T01_9000001228_08829cztM0_level2.evt
| modeM0/AS1G07_087T01_9000001228_08829cztM0_level2_quad_clean.evt
|
| Size (bytes) | 252,846,720 | 52,165,440 |
| Size | 241.1 MB
| 49.7 MB
|
| Events in quadrant A | 2,067,355 | 343,412 |
| Events in quadrant B | 1,777,809 | 352,208 |
| Events in quadrant C | 1,536,179 | 336,333 |
| Events in quadrant D | 2,062,806 | 325,837 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8240 | 2 |
| B | 0 | 7279 | 1 |
| C | 0 | 6589 | 1 |
| D | 0 | 8166 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 64 | 0 |
| B | 0 | 64 | 0 |
| C | 0 | 64 | 0 |
| D | 0 | 64 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3117 | 122 | 3.914020% |
| B | 3117 | 85 | 2.726981% |
| C | 3117 | 37 | 1.187039% |
| D | 3117 | 186 | 5.967276% |
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 | 4442 | 3117 | 24 | 24 | 0.54% | 0.77% |  |
| B | 4442 | 3117 | 20 | 20 | 0.45% | 0.64% |  |
| C | 4442 | 3117 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4442 | 3117 | 117 | 117 | 2.63% | 3.75% |  |
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 | 5 | 248534 | 2939.42 | 411 | 403 | 84.4 |
| A | 15 | 223 | 106370 | 1255.31 | 411 | 403 | 84.4 |
| A | 15 | 239 | 38080 | 446.33 | 411 | 403 | 84.4 |
| B | 10 | 16 | 142132 | 1784.93 | 413 | 403 | 79.4 |
| B | 0 | 214 | 24006 | 297.26 | 413 | 403 | 79.4 |
| B | 5 | 255 | 8385 | 100.52 | 413 | 403 | 79.4 |
| C | 13 | 61 | 2990 | 28.3 | 393 | 395 | 91.7 |
| C | 12 | 4 | 1887 | 16.27 | 393 | 395 | 91.7 |
| C | 3 | 202 | 1001 | 6.61 | 393 | 395 | 91.7 |
| D | 2 | 16 | 392952 | 3918.23 | 386 | 376 | 100.2 |
| D | 2 | 152 | 75528 | 750.08 | 386 | 376 | 100.2 |
| D | 1 | 31 | 44670 | 442.09 | 386 | 376 | 100.2 |
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 |  |