Observation information
- date-obs: 2017-05-16
- time-obs: 11:39:55.128200000
- date-end: 2017-05-16
- time-end: 14:03:27.133100000
- obs_id: A03_135T01_9000001226
- exposure: 4579.21084841
- sourceid: NGC 4748
- observer: mainpal
- ra_pnt: 193.0519
- dec_pnt: -13.41472
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_135T01_9000001226_08828cztM0_level2.evt
| modeM0/AS1A03_135T01_9000001226_08828cztM0_level2_quad_clean.evt
|
| Size (bytes) | 531,455,040 | 99,008,640 |
| Size | 506.8 MB
| 94.4 MB
|
| Events in quadrant A | 4,552,771 | 648,806 |
| Events in quadrant B | 3,471,451 | 657,731 |
| Events in quadrant C | 3,172,359 | 641,231 |
| Events in quadrant D | 4,471,244 | 610,736 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17965 | 9 |
| B | 0 | 14284 | 16 |
| C | 0 | 13430 | 4 |
| D | 0 | 17368 | 8 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 24 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6302 | 296 | 4.696922% |
| B | 6300 | 168 | 2.666667% |
| C | 6303 | 84 | 1.332699% |
| D | 6302 | 355 | 5.633132% |
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 | 7574 | 6304 | 93 | 93 | 1.23% | 1.48% |  |
| B | 7574 | 6302 | 40 | 40 | 0.53% | 0.63% |  |
| C | 7574 | 6304 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7574 | 6304 | 240 | 240 | 3.17% | 3.81% |  |
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 | 796245 | 4687.42 | 843 | 829 | 169.7 |
| A | 15 | 223 | 291422 | 1712.48 | 843 | 829 | 169.7 |
| A | 15 | 239 | 123425 | 722.46 | 843 | 829 | 169.7 |
| B | 10 | 16 | 201239 | 1269.67 | 836 | 818 | 157.9 |
| B | 12 | 111 | 16392 | 98.66 | 836 | 818 | 157.9 |
| B | 11 | 111 | 13583 | 80.87 | 836 | 818 | 157.9 |
| C | 13 | 61 | 6237 | 29.12 | 812 | 816 | 186.2 |
| C | 12 | 4 | 3392 | 13.84 | 812 | 816 | 186.2 |
| C | 5 | 32 | 3157 | 12.57 | 812 | 816 | 186.2 |
| D | 2 | 16 | 878186 | 4518.13 | 803 | 785 | 194.2 |
| D | 2 | 152 | 177418 | 909.56 | 803 | 785 | 194.2 |
| D | 2 | 14 | 131614 | 673.7 | 803 | 785 | 194.2 |
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 |  |