Observation information
- date-obs: 2017-11-08
- time-obs: 06:46:34.651600000
- date-end: 2017-11-08
- time-end: 08:57:42.648600000
- obs_id: G08_010T01_9000001672
- exposure: 3324.39753101
- sourceid: ngc 253
- observer: jmurthy
- ra_pnt: 11.888
- dec_pnt: -25.28822
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_010T01_9000001672_11429cztM0_level2.evt
| modeM0/AS1G08_010T01_9000001672_11429cztM0_level2_quad_clean.evt
|
| Size (bytes) | 506,793,600 | 69,019,200 |
| Size | 483.3 MB
| 65.8 MB
|
| Events in quadrant A | 3,240,364 | 413,572 |
| Events in quadrant B | 4,324,847 | 397,276 |
| Events in quadrant C | 3,152,839 | 406,161 |
| Events in quadrant D | 4,166,027 | 396,293 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14131 | 3 |
| B | 0 | 17160 | 2 |
| C | 0 | 14015 | 2 |
| D | 0 | 17035 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6838 | 72 | 1.052939% |
| B | 6838 | 323 | 4.723603% |
| C | 6838 | 59 | 0.862825% |
| D | 6838 | 281 | 4.109389% |
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 | 7733 | 6839 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7733 | 6839 | 152 | 152 | 1.97% | 2.22% |  |
| C | 7733 | 6839 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7733 | 6839 | 185 | 185 | 2.39% | 2.71% |  |
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 | 1 | 162 | 19692 | 111.91 | 825 | 806 | 168.8 |
| A | 8 | 15 | 11493 | 63.33 | 825 | 806 | 168.8 |
| A | 1 | 178 | 11189 | 61.53 | 825 | 806 | 168.8 |
| B | 4 | 239 | 1009120 | 6412.02 | 816 | 796 | 157.3 |
| B | 15 | 204 | 36088 | 224.42 | 816 | 796 | 157.3 |
| B | 3 | 189 | 34662 | 215.36 | 816 | 796 | 157.3 |
| C | 8 | 128 | 9761 | 47.99 | 802 | 807 | 186.6 |
| C | 8 | 112 | 6135 | 28.56 | 802 | 807 | 186.6 |
| C | 13 | 61 | 6006 | 27.87 | 802 | 807 | 186.6 |
| D | 13 | 152 | 504444 | 2647.58 | 788 | 763 | 190.2 |
| D | 1 | 52 | 178447 | 933.99 | 788 | 763 | 190.2 |
| D | 14 | 34 | 160627 | 840.32 | 788 | 763 | 190.2 |
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 |  |