Observation information
- date-obs: 2018-02-23
- time-obs: 08:05:24.626000000
- date-end: 2018-02-23
- time-end: 10:08:10.624200000
- obs_id: T02_002T01_9000001914
- exposure: 6051.08600016
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_002T01_9000001914_13014cztM0_level2.evt
| modeM0/AS1T02_002T01_9000001914_13014cztM0_level2_quad_clean.evt
|
| Size (bytes) | 552,144,960 | 117,912,960 |
| Size | 526.6 MB
| 112.5 MB
|
| Events in quadrant A | 3,250,610 | 825,591 |
| Events in quadrant B | 6,048,928 | 709,100 |
| Events in quadrant C | 2,791,878 | 821,542 |
| Events in quadrant D | 4,201,348 | 773,404 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13693 | 2 |
| B | 0 | 22119 | 1 |
| C | 0 | 12858 | 1 |
| D | 0 | 16758 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6326 | 120 | 1.896933% |
| B | 6326 | 1479 | 23.379703% |
| C | 6326 | 45 | 0.711350% |
| D | 6326 | 392 | 6.196649% |
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 | 7367 | 6328 | 15 | 15 | 0.20% | 0.24% |  |
| B | 7367 | 6328 | 960 | 960 | 13.03% | 15.17% |  |
| C | 7367 | 6328 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7367 | 6328 | 278 | 278 | 3.77% | 4.39% |  |
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 | 12 | 189 | 115538 | 761.21 | 744 | 730 | 150.8 |
| A | 15 | 223 | 113271 | 746.18 | 744 | 730 | 150.8 |
| A | 1 | 162 | 49311 | 322.11 | 744 | 730 | 150.8 |
| B | 4 | 239 | 3107376 | 25868.84 | 642 | 627 | 120.1 |
| B | 0 | 85 | 164589 | 1365.26 | 642 | 627 | 120.1 |
| B | 3 | 64 | 163291 | 1354.45 | 642 | 627 | 120.1 |
| C | 13 | 61 | 5180 | 27.56 | 714 | 716 | 161.9 |
| C | 12 | 4 | 3032 | 14.3 | 714 | 716 | 161.9 |
| C | 8 | 222 | 2326 | 9.94 | 714 | 716 | 161.9 |
| D | 1 | 52 | 1495099 | 8976.78 | 702 | 683 | 166.5 |
| D | 2 | 234 | 22107 | 128.69 | 702 | 683 | 166.5 |
| D | 8 | 195 | 18156 | 104.96 | 702 | 683 | 166.5 |
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 |  |