Observation information
- date-obs: 2018-04-06
- time-obs: 23:56:30.876300000
- date-end: 2018-04-07
- time-end: 02:21:12.873000000
- obs_id: G08_083T03_9000002022
- exposure: 4124.67016461
- sourceid: NGC 3621
- observer: stalin
- ra_pnt: 169.5688
- dec_pnt: -32.81417
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_083T03_9000002022_13646cztM0_level2.evt
| modeM0/AS1G08_083T03_9000002022_13646cztM0_level2_quad_clean.evt
|
| Size (bytes) | 441,512,640 | 90,564,480 |
| Size | 421.1 MB
| 86.4 MB
|
| Events in quadrant A | 3,103,751 | 575,961 |
| Events in quadrant B | 3,269,904 | 590,666 |
| Events in quadrant C | 3,302,059 | 571,321 |
| Events in quadrant D | 3,252,574 | 550,091 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13383 | 3 |
| B | 0 | 13805 | 2 |
| C | 0 | 13643 | 2 |
| D | 0 | 13886 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6517 | 29 | 0.444990% |
| B | 6517 | 54 | 0.828602% |
| C | 6517 | 27 | 0.414301% |
| D | 6517 | 34 | 0.521712% |
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 | 8683 | 6520 | 2 | 2 | 0.02% | 0.03% |  |
| B | 8683 | 6520 | 3 | 3 | 0.03% | 0.05% |  |
| C | 8683 | 6520 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8683 | 6520 | 9 | 9 | 0.10% | 0.14% |  |
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 | 19850 | 117.62 | 798 | 780 | 162.1 |
| A | 0 | 226 | 6994 | 38.33 | 798 | 780 | 162.1 |
| A | 1 | 178 | 6517 | 35.39 | 798 | 780 | 162.1 |
| B | 0 | 219 | 86615 | 564.25 | 804 | 785 | 152.1 |
| B | 12 | 111 | 17923 | 112.66 | 804 | 785 | 152.1 |
| B | 11 | 111 | 14927 | 92.97 | 804 | 785 | 152.1 |
| C | 3 | 233 | 236742 | 1308.33 | 782 | 785 | 180.3 |
| C | 14 | 234 | 8695 | 43.86 | 782 | 785 | 180.3 |
| C | 14 | 220 | 5649 | 26.97 | 782 | 785 | 180.3 |
| D | 5 | 222 | 130169 | 636.45 | 767 | 751 | 203.3 |
| D | 8 | 195 | 69997 | 340.54 | 767 | 751 | 203.3 |
| D | 13 | 122 | 68944 | 335.36 | 767 | 751 | 203.3 |
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 |  |