Observation information
- date-obs: 2017-10-08
- time-obs: 08:56:00.415400000
- date-end: 2017-10-08
- time-end: 10:52:41.415100000
- obs_id: G08_027T06_9000001594
- exposure: 4744.98195802
- sourceid: NGC 6440
- observer: sudip
- ra_pnt: 267.2195
- dec_pnt: -20.35958
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_027T06_9000001594_10972cztM0_level2.evt
| modeM0/AS1G08_027T06_9000001594_10972cztM0_level2_quad_clean.evt
|
| Size (bytes) | 443,332,800 | 100,365,120 |
| Size | 422.8 MB
| 95.7 MB
|
| Events in quadrant A | 3,058,290 | 679,061 |
| Events in quadrant B | 4,064,058 | 666,238 |
| Events in quadrant C | 2,757,086 | 658,847 |
| Events in quadrant D | 3,153,934 | 631,269 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12791 | 2 |
| B | 0 | 15846 | 1 |
| C | 0 | 11956 | 1 |
| D | 0 | 13125 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 118 | 0 |
| B | 0 | 118 | 0 |
| C | 0 | 118 | 0 |
| D | 0 | 118 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5781 | 125 | 2.162256% |
| B | 5781 | 450 | 7.784120% |
| C | 5781 | 93 | 1.608718% |
| D | 5781 | 116 | 2.006573% |
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 | 7001 | 5781 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7001 | 5781 | 195 | 195 | 2.79% | 3.37% |  |
| C | 7001 | 5782 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7001 | 5782 | 26 | 26 | 0.37% | 0.45% |  |
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 | 113012 | 746.27 | 746 | 732 | 150.5 |
| A | 8 | 15 | 61764 | 405.65 | 746 | 732 | 150.5 |
| A | 13 | 253 | 7962 | 48.05 | 746 | 732 | 150.5 |
| B | 4 | 239 | 1103035 | 8070.55 | 721 | 705 | 136.6 |
| B | 0 | 214 | 78237 | 567.64 | 721 | 705 | 136.6 |
| B | 15 | 204 | 15459 | 108.02 | 721 | 705 | 136.6 |
| C | 13 | 61 | 5271 | 28.09 | 706 | 710 | 162.4 |
| C | 8 | 222 | 2418 | 10.52 | 706 | 710 | 162.4 |
| C | 3 | 202 | 1719 | 6.21 | 706 | 710 | 162.4 |
| D | 13 | 105 | 135739 | 800.87 | 711 | 691 | 168.6 |
| D | 13 | 104 | 94477 | 556.17 | 711 | 691 | 168.6 |
| D | 1 | 52 | 84167 | 495.03 | 711 | 691 | 168.6 |
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 |  |