Observation information
- date-obs: 2018-02-22
- time-obs: 17:42:52.685500000
- date-end: 2018-02-23
- time-end: 13:54:47.623300000
- obs_id: T02_002T01_9000001914
- exposure: 47249.119675
- 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_9000001914cztM0_level2.fits
| modeM0/AS1T02_002T01_9000001914cztM0_level2_quad_clean.evt
|
| Size (bytes) | 561,242,880 | 757,846,080 |
| Size | 535.2 MB
| 722.7 MB
|
| Events in quadrant A | 3,465,466 | 5,091,379 |
| Events in quadrant B | 2,936,724 | 4,209,515 |
| Events in quadrant C | 3,432,640 | 4,942,888 |
| Events in quadrant D | 2,933,988 | 4,487,589 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 113 | 0 |
| B | 0 | 113 | 0 |
| C | 0 | 113 | 0 |
| D | 0 | 113 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134315 | 0 |
| B | 0 | 195022 | 0 |
| C | 0 | 126040 | 0 |
| D | 0 | 152021 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1252 | 0 |
| B | 0 | 1252 | 0 |
| C | 0 | 1252 | 0 |
| D | 0 | 1252 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 61570 | 916 | 1.487738% |
| B | 61570 | 11484 | 18.651941% |
| C | 61570 | 297 | 0.482378% |
| D | 61570 | 2389 | 3.880136% |
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 | 72716 | 61518 | 0 | 0 | 0.00% | 0.00% |  |
| B | 72713 | 59513 | 0 | 0 | 0.00% | 0.00% |  |
| C | 72716 | 61573 | 0 | 0 | 0.00% | 0.00% |  |
| D | 72716 | 61486 | 0 | 0 | 0.00% | 0.00% |  |
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 | 0 | 29 | 3305 | 10.96 | 903 | 852 | 223.7 |
| A | 7 | 110 | 2751 | 8.49 | 903 | 852 | 223.7 |
| A | 9 | 19 | 2633 | 7.96 | 903 | 852 | 223.7 |
| B | 2 | 9 | 2542 | 11.89 | 774 | 741 | 151.4 |
| B | 14 | 254 | 2021 | 8.45 | 774 | 741 | 151.4 |
| B | 3 | 17 | 1973 | 8.14 | 774 | 741 | 151.4 |
| C | 12 | 241 | 2422 | 6.66 | 907 | 848 | 236.4 |
| C | 9 | 188 | 2327 | 6.26 | 907 | 848 | 236.4 |
| C | 2 | 191 | 2286 | 6.08 | 907 | 848 | 236.4 |
| D | 3 | 14 | 2165 | 6.25 | 836 | 761 | 224.7 |
| D | 6 | 231 | 2146 | 6.16 | 836 | 761 | 224.7 |
| D | 7 | 3 | 2063 | 5.79 | 836 | 761 | 224.7 |
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 |  |