Observation information
- date-obs: 2018-01-12
- time-obs: 22:59:56.553500000
- date-end: 2018-01-13
- time-end: 01:21:27.058400000
- obs_id: G08_083T02_9000001840
- exposure: 4637.78191011
- sourceid: NGC 3486
- observer: stalin
- ra_pnt: 165.0996
- dec_pnt: 28.975
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_083T02_9000001840_12402cztM0_level2.evt
| modeM0/AS1G08_083T02_9000001840_12402cztM0_level2_quad_clean.evt
|
| Size (bytes) | 499,694,400 | 96,854,400 |
| Size | 476.5 MB
| 92.4 MB
|
| Events in quadrant A | 4,834,040 | 614,440 |
| Events in quadrant B | 3,509,069 | 643,912 |
| Events in quadrant C | 2,987,005 | 628,245 |
| Events in quadrant D | 3,360,103 | 591,307 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 20 | 0 |
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18945 | 3 |
| B | 0 | 14743 | 2 |
| C | 0 | 13369 | 2 |
| D | 0 | 14466 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6530 | 221 | 3.384380% |
| B | 6530 | 99 | 1.516080% |
| C | 6530 | 9 | 0.137825% |
| D | 6530 | 60 | 0.918836% |
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 | 7766 | 6532 | 89 | 89 | 1.15% | 1.36% |  |
| B | 7766 | 6532 | 52 | 52 | 0.67% | 0.80% |  |
| C | 7766 | 6532 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7766 | 6532 | 63 | 63 | 0.81% | 0.96% |  |
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 | 251 | 1085815 | 6902.24 | 776 | 762 | 157.2 |
| A | 1 | 162 | 252188 | 1599.37 | 776 | 762 | 157.2 |
| A | 1 | 178 | 146921 | 929.75 | 776 | 762 | 157.2 |
| B | 4 | 239 | 337461 | 2242.47 | 792 | 775 | 150.1 |
| B | 0 | 219 | 20598 | 132.03 | 792 | 775 | 150.1 |
| B | 12 | 111 | 16547 | 105.05 | 792 | 775 | 150.1 |
| C | 13 | 61 | 5753 | 28.19 | 766 | 769 | 176.8 |
| C | 3 | 202 | 1964 | 6.76 | 766 | 769 | 176.8 |
| C | -1 | -1 | -1 | -1.0 | 766 | 769 | 176.8 |
| D | 10 | 50 | 143083 | 791.25 | 751 | 732 | 179.9 |
| D | 10 | 199 | 101205 | 558.47 | 751 | 732 | 179.9 |
| D | 10 | 253 | 75616 | 416.24 | 751 | 732 | 179.9 |
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 |  |