Observation information
- date-obs: 2017-05-17
- time-obs: 00:11:16.163200000
- date-end: 2017-05-17
- time-end: 05:47:18.178100000
- obs_id: G07_087T01_9000001228
- exposure: 10778.4587579
- 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_08837cztM0_level2.evt
| modeM0/AS1G07_087T01_9000001228_08837cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,564,943,040 | 212,624,640 |
| Size | 1.5 GB
| 202.8 MB
|
| Events in quadrant A | 10,664,833 | 1,355,855 |
| Events in quadrant B | 8,618,596 | 1,396,163 |
| Events in quadrant C | 7,904,627 | 1,348,331 |
| Events in quadrant D | 18,981,879 | 1,088,245 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 44391 | 838 |
| B | 0 | 38598 | 632 |
| C | 0 | 37123 | 447 |
| D | 0 | 69005 | 667 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 372 | 2 |
| B | 0 | 372 | 6 |
| C | 0 | 372 | 4 |
| D | 0 | 372 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18122 | 394 | 2.174153% |
| B | 18142 | 125 | 0.689009% |
| C | 18152 | 46 | 0.253416% |
| D | 18138 | 4203 | 23.172345% |
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 | 20162 | 18241 | 182 | 182 | 0.90% | 1.00% |  |
| B | 20162 | 18266 | 33 | 33 | 0.16% | 0.18% |  |
| C | 20162 | 18266 | 1 | 1 | 0.00% | 0.01% |  |
| D | 20162 | 18269 | 4085 | 4085 | 20.26% | 22.36% |  |
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 | 1410611 | 3382.6 | 2057 | 2010 | 416.4 |
| A | 15 | 223 | 508729 | 1216.83 | 2057 | 2010 | 416.4 |
| A | 7 | 144 | 323634 | 772.34 | 2057 | 2010 | 416.4 |
| B | 4 | 48 | 265862 | 663.47 | 2090 | 2039 | 397.6 |
| B | 0 | 214 | 116430 | 287.68 | 2090 | 2039 | 397.6 |
| B | 5 | 255 | 62971 | 153.23 | 2090 | 2039 | 397.6 |
| C | 14 | 234 | 20550 | 39.76 | 2010 | 2017 | 466.1 |
| C | 13 | 61 | 15505 | 28.94 | 2010 | 2017 | 466.1 |
| C | 8 | 222 | 13858 | 25.4 | 2010 | 2017 | 466.1 |
| D | 2 | 16 | 11086527 | 27010.47 | 1627 | 1580 | 410.4 |
| D | 1 | 52 | 834270 | 2029.0 | 1627 | 1580 | 410.4 |
| D | 8 | 195 | 526500 | 1279.06 | 1627 | 1580 | 410.4 |
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 |  |