Observation information
- date-obs: 2020-06-07
- time-obs: 22:00:30.328000000
- date-end: 2020-06-09
- time-end: 15:36:04.143400000
- obs_id: A09_057T04_9000003712
- exposure: 43546.5066869
- sourceid: NGC 7531
- observer: sreeja
- ra_pnt: 348.7021
- dec_pnt: -43.59995
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_057T04_9000003712cztM0_level2.fits
| modeM0/AS1A09_057T04_9000003712cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,292,509,440 | 883,664,640 |
| Size | 1.2 GB
| 842.7 MB
|
| Events in quadrant A | 8,187,322 | 4,727,382 |
| Events in quadrant B | 7,787,652 | 4,777,445 |
| Events in quadrant C | 7,899,078 | 4,500,564 |
| Events in quadrant D | 6,601,522 | 4,088,990 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 227 | 0 |
| B | 0 | 227 | 0 |
| C | 0 | 227 | 0 |
| D | 0 | 227 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 301884 | 0 |
| B | 0 | 272168 | 0 |
| C | 0 | 268822 | 0 |
| D | 0 | 424408 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2578 | 0 |
| B | 0 | 2582 | 0 |
| C | 0 | 2582 | 0 |
| D | 0 | 2580 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 126344 | 3055 | 2.418002% |
| B | 126441 | 1740 | 1.376136% |
| C | 126436 | 2065 | 1.633237% |
| D | 126424 | 12705 | 10.049516% |
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 | 149735 | 126553 | 0 | 0 | 0.00% | 0.00% |  |
| B | 149735 | 126661 | 0 | 0 | 0.00% | 0.00% |  |
| C | 149735 | 126645 | 0 | 0 | 0.00% | 0.00% |  |
| D | 149735 | 126279 | 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 | 7877 | 11.49 | 2132 | 2009 | 510.6 |
| A | 7 | 110 | 6538 | 8.87 | 2132 | 2009 | 510.6 |
| A | 0 | 30 | 6217 | 8.24 | 2132 | 2009 | 510.6 |
| B | 2 | 9 | 6146 | 10.46 | 2060 | 1969 | 399.5 |
| B | 2 | 8 | 5205 | 8.1 | 2060 | 1969 | 399.5 |
| B | 3 | 80 | 5086 | 7.8 | 2060 | 1969 | 399.5 |
| C | 1 | 80 | 6165 | 7.98 | 2086 | 1957 | 527.1 |
| C | 1 | 81 | 6066 | 7.8 | 2086 | 1957 | 527.1 |
| C | 3 | 126 | 5419 | 6.57 | 2086 | 1957 | 527.1 |
| D | 10 | 189 | 4601 | 5.84 | 1889 | 1726 | 492.0 |
| D | 7 | 3 | 4590 | 5.82 | 1889 | 1726 | 492.0 |
| D | 6 | 231 | 4544 | 5.73 | 1889 | 1726 | 492.0 |
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 |  |