Observation information
- date-obs: 2017-05-16
- time-obs: 15:34:14.137500000
- date-end: 2017-05-16
- time-end: 17:37:20.142600000
- obs_id: G07_087T01_9000001228
- exposure: 4882.96293265
- 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_08830cztM0_level2.evt
| modeM0/AS1G07_087T01_9000001228_08830cztM0_level2_quad_clean.evt
|
| Size (bytes) | 447,099,840 | 100,209,600 |
| Size | 426.4 MB
| 95.6 MB
|
| Events in quadrant A | 4,084,483 | 661,862 |
| Events in quadrant B | 3,120,008 | 674,259 |
| Events in quadrant C | 2,765,796 | 642,073 |
| Events in quadrant D | 3,154,669 | 629,808 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16158 | 2 |
| B | 0 | 13255 | 1 |
| C | 0 | 12548 | 1 |
| D | 0 | 13563 | 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 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6116 | 204 | 3.335513% |
| B | 6116 | 97 | 1.586004% |
| C | 6116 | 45 | 0.735775% |
| D | 6116 | 101 | 1.651406% |
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 | 7386 | 6116 | 81 | 81 | 1.10% | 1.32% |  |
| B | 7386 | 6116 | 9 | 9 | 0.12% | 0.15% |  |
| C | 7386 | 6116 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7386 | 6116 | 28 | 28 | 0.38% | 0.46% |  |
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 | 632879 | 4218.64 | 745 | 732 | 149.8 |
| A | 15 | 223 | 325448 | 2167.0 | 745 | 732 | 149.8 |
| A | 15 | 239 | 105376 | 698.34 | 745 | 732 | 149.8 |
| B | 10 | 16 | 124567 | 868.21 | 749 | 733 | 142.6 |
| B | 0 | 214 | 53825 | 372.23 | 749 | 733 | 142.6 |
| B | 0 | 219 | 19054 | 128.45 | 749 | 733 | 142.6 |
| C | 13 | 61 | 5455 | 29.38 | 707 | 710 | 161.5 |
| C | 1 | 16 | 2859 | 13.31 | 707 | 710 | 161.5 |
| C | 12 | 4 | 2662 | 12.09 | 707 | 710 | 161.5 |
| D | 2 | 14 | 134349 | 707.98 | 711 | 694 | 188.8 |
| D | 2 | 152 | 112265 | 591.0 | 711 | 694 | 188.8 |
| D | 1 | 52 | 80210 | 421.2 | 711 | 694 | 188.8 |
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 |  |