Observation information
- date-obs: 2017-05-16
- time-obs: 18:43:15.146800000
- date-end: 2017-05-16
- time-end: 21:00:47.153200000
- obs_id: G07_087T01_9000001228
- exposure: 5007.06196225
- 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_08832cztM0_level2.evt
| modeM0/AS1G07_087T01_9000001228_08832cztM0_level2_quad_clean.evt
|
| Size (bytes) | 511,675,200 | 98,280,000 |
| Size | 488.0 MB
| 93.7 MB
|
| Events in quadrant A | 4,342,867 | 632,424 |
| Events in quadrant B | 3,309,228 | 642,547 |
| Events in quadrant C | 3,096,931 | 617,312 |
| Events in quadrant D | 4,274,793 | 599,299 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17610 | 3 |
| B | 0 | 14571 | 2 |
| C | 0 | 14280 | 2 |
| D | 0 | 17441 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6964 | 149 | 2.139575% |
| B | 6964 | 54 | 0.775416% |
| C | 6964 | 11 | 0.157955% |
| D | 6964 | 77 | 1.105686% |
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 | 7619 | 6965 | 66 | 66 | 0.87% | 0.95% |  |
| B | 7618 | 6964 | 5 | 5 | 0.07% | 0.07% |  |
| C | 7619 | 6965 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7619 | 6965 | 48 | 48 | 0.63% | 0.69% |  |
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 | 661686 | 3957.11 | 817 | 799 | 167.0 |
| A | 15 | 223 | 346080 | 2067.4 | 817 | 799 | 167.0 |
| A | 15 | 239 | 111294 | 661.6 | 817 | 799 | 167.0 |
| B | 0 | 214 | 40388 | 247.97 | 828 | 808 | 159.6 |
| B | 10 | 16 | 32176 | 196.52 | 828 | 808 | 159.6 |
| B | 12 | 111 | 16230 | 96.62 | 828 | 808 | 159.6 |
| C | 1 | 16 | 16277 | 85.82 | 785 | 789 | 180.5 |
| C | 14 | 234 | 14526 | 76.11 | 785 | 789 | 180.5 |
| C | 13 | 61 | 6059 | 29.2 | 785 | 789 | 180.5 |
| D | 1 | 52 | 684743 | 3325.38 | 781 | 759 | 205.7 |
| D | 2 | 152 | 202728 | 981.93 | 781 | 759 | 205.7 |
| D | 8 | 195 | 144496 | 698.82 | 781 | 759 | 205.7 |
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 |  |