Observation information
- date-obs: 2018-03-14
- time-obs: 18:49:55.783800000
- date-end: 2018-03-14
- time-end: 21:02:33.784800000
- obs_id: G08_023T01_9000001978
- exposure: 5538.3302092
- sourceid: centaurus A
- observer: sreekumar
- ra_pnt: 201.6023
- dec_pnt: -42.8446
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_023T01_9000001978_13302cztM0_level2.evt
| modeM0/AS1G08_023T01_9000001978_13302cztM0_level2_quad_clean.evt
|
| Size (bytes) | 455,028,480 | 118,054,080 |
| Size | 433.9 MB
| 112.6 MB
|
| Events in quadrant A | 3,359,028 | 785,363 |
| Events in quadrant B | 3,382,000 | 817,398 |
| Events in quadrant C | 3,124,138 | 784,704 |
| Events in quadrant D | 3,472,101 | 733,162 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14350 | 3 |
| B | 0 | 14181 | 2 |
| C | 0 | 13526 | 2 |
| D | 0 | 14704 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6526 | 48 | 0.735519% |
| B | 6526 | 71 | 1.087956% |
| C | 6526 | 17 | 0.260496% |
| D | 6526 | 73 | 1.118603% |
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 | 7897 | 6528 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7897 | 6528 | 5 | 5 | 0.06% | 0.08% |  |
| C | 7897 | 6528 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7897 | 6528 | 34 | 34 | 0.43% | 0.52% |  |
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 | 15 | 150174 | 906.35 | 817 | 803 | 164.8 |
| A | 1 | 162 | 22628 | 132.43 | 817 | 803 | 164.8 |
| A | 15 | 69 | 18391 | 106.72 | 817 | 803 | 164.8 |
| B | 3 | 209 | 31921 | 201.93 | 831 | 811 | 154.1 |
| B | 0 | 197 | 25113 | 157.74 | 831 | 811 | 154.1 |
| B | 4 | 142 | 20564 | 128.21 | 831 | 811 | 154.1 |
| C | 3 | 233 | 9522 | 47.98 | 797 | 802 | 181.7 |
| C | 15 | 208 | 7115 | 34.74 | 797 | 802 | 181.7 |
| C | 13 | 61 | 5896 | 28.03 | 797 | 802 | 181.7 |
| D | 13 | 249 | 178424 | 960.88 | 775 | 753 | 184.9 |
| D | 2 | 136 | 121222 | 651.52 | 775 | 753 | 184.9 |
| D | 8 | 195 | 102502 | 550.28 | 775 | 753 | 184.9 |
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 |  |