Observation information
- date-obs: 2020-08-13
- time-obs: 23:34:37.568600000
- date-end: 2020-08-14
- time-end: 01:58:33.563300000
- obs_id: A09_088T01_9000003812
- exposure: 5062.71306366
- sourceid: NGC 1261
- observer: sharmila
- ra_pnt: 48.06754
- dec_pnt: -55.21622
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_088T01_9000003812_26375cztM0_level2.evt
| modeM0/AS1A09_088T01_9000003812_26375cztM0_level2_quad_clean.evt
|
| Size (bytes) | 808,459,200 | 106,488,000 |
| Size | 771.0 MB
| 101.6 MB
|
| Events in quadrant A | 3,484,919 | 734,487 |
| Events in quadrant B | 3,180,976 | 761,785 |
| Events in quadrant C | 8,700,207 | 641,587 |
| Events in quadrant D | 8,681,328 | 634,470 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14581 | 0 |
| B | 0 | 13445 | 0 |
| C | 0 | 30444 | 0 |
| D | 0 | 30287 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6474 | 111 | 1.714551% |
| B | 6474 | 28 | 0.432499% |
| C | 6473 | 1996 | 30.835779% |
| D | 6473 | 1927 | 29.769813% |
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 | 7574 | 6476 | 39 | 39 | 0.51% | 0.60% |  |
| B | 7574 | 6476 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7573 | 6474 | 1160 | 1160 | 15.32% | 17.92% |  |
| D | 7573 | 6473 | 1527 | 1527 | 20.16% | 23.59% |  |
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 | 13 | 410688 | 2604.14 | 797 | 783 | 157.4 |
| A | 13 | 254 | 10715 | 63.1 | 797 | 783 | 157.4 |
| A | 3 | 137 | 7088 | 40.06 | 797 | 783 | 157.4 |
| B | 12 | 111 | 17958 | 113.79 | 807 | 786 | 150.9 |
| B | 11 | 111 | 16000 | 100.82 | 807 | 786 | 150.9 |
| B | 14 | 111 | 14564 | 91.3 | 807 | 786 | 150.9 |
| C | 3 | 233 | 5836818 | 35952.75 | 703 | 707 | 162.3 |
| C | 14 | 238 | 112305 | 687.48 | 703 | 707 | 162.3 |
| C | 2 | 16 | 8958 | 50.83 | 703 | 707 | 162.3 |
| D | 7 | 80 | 3270150 | 20395.33 | 678 | 663 | 160.3 |
| D | 1 | 52 | 2655237 | 16559.46 | 678 | 663 | 160.3 |
| D | 11 | 176 | 78034 | 482.65 | 678 | 663 | 160.3 |
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 |  |