Observation information
- date-obs: 2016-09-30
- time-obs: 03:52:11.782900000
- date-end: 2016-09-30
- time-end: 04:24:38.781900000
- obs_id: G05_204T01_9000000688
- exposure: 1330.4499113
- sourceid: Holmberg II X-1
- observer: jmurthy
- ra_pnt: 124.8742
- dec_pnt: 70.70506
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G05_204T01_9000000688_05448cztM0_level2.evt
| modeM0/AS1G05_204T01_9000000688_05448cztM0_level2_quad_clean.evt
|
| Size (bytes) | 78,598,080 | 20,070,720 |
| Size | 75.0 MB
| 19.1 MB
|
| Events in quadrant A | 506,633 | 123,864 |
| Events in quadrant B | 542,644 | 127,142 |
| Events in quadrant C | 510,551 | 132,508 |
| Events in quadrant D | 724,919 | 122,374 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3879 | 1220 |
| B | 0 | 3931 | 1191 |
| C | 0 | 3885 | 1168 |
| D | 0 | 4597 | 1391 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 38 | 10 |
| B | 0 | 38 | 8 |
| C | 0 | 38 | 6 |
| D | 0 | 38 | 8 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1331 | 0 | 0.000000% |
| B | 1349 | 3 | 0.222387% |
| C | 1358 | 0 | 0.000000% |
| D | 1321 | 14 | 1.059803% |
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 | 1836 | 1559 | 0 | 0 | 0.00% | 0.00% |  |
| B | 1946 | 1593 | 1 | 1 | 0.05% | 0.06% |  |
| C | 1927 | 1611 | 0 | 0 | 0.00% | 0.00% |  |
| D | 1933 | 1563 | 12 | 12 | 0.62% | 0.77% |  |
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 | 13 | 6 | 2067 | 67.13 | 130 | 128 | 28.9 |
| A | 0 | 226 | 1237 | 38.4 | 130 | 128 | 28.9 |
| A | 12 | 194 | 1215 | 37.63 | 130 | 128 | 28.9 |
| B | 4 | 48 | 15146 | 538.92 | 134 | 131 | 27.9 |
| B | 0 | 219 | 3868 | 134.13 | 134 | 131 | 27.9 |
| B | 10 | 245 | 2904 | 99.53 | 134 | 131 | 27.9 |
| C | 8 | 128 | 3274 | 98.52 | 128 | 129 | 31.9 |
| C | 8 | 112 | 1567 | 45.05 | 128 | 129 | 31.9 |
| C | 12 | 4 | 1501 | 42.98 | 128 | 129 | 31.9 |
| D | 2 | 33 | 201349 | 6339.03 | 122 | 118 | 31.7 |
| D | 8 | 195 | 24463 | 766.9 | 122 | 118 | 31.7 |
| D | 4 | 95 | 18959 | 593.52 | 122 | 118 | 31.7 |
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 |  |