Observation information
- date-obs: 2021-05-29
- time-obs: 01:49:50.870000000
- date-end: 2021-05-29
- time-end: 04:14:07.873500000
- obs_id: A10_103T02_9000004416
- exposure: 4750.93705396
- sourceid: NGC 6397
- observer: annapurni
- ra_pnt: 265.1754
- dec_pnt: -53.67433
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_103T02_9000004416_30639cztM0_level2.evt
| modeM0/AS1A10_103T02_9000004416_30639cztM0_level2_quad_clean.evt
|
| Size (bytes) | 734,535,360 | 102,669,120 |
| Size | 700.5 MB
| 97.9 MB
|
| Events in quadrant A | 3,482,034 | 681,480 |
| Events in quadrant B | 5,476,892 | 684,596 |
| Events in quadrant C | 3,548,309 | 667,352 |
| Events in quadrant D | 9,283,453 | 605,108 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14553 | 1 |
| B | 0 | 21350 | 1 |
| C | 0 | 14570 | 2 |
| D | 0 | 32305 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6752 | 97 | 1.436611% |
| B | 6753 | 209 | 3.094921% |
| C | 6752 | 147 | 2.177133% |
| D | 6752 | 997 | 14.765995% |
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 | 8657 | 6754 | 39 | 39 | 0.45% | 0.58% |  |
| B | 8658 | 6755 | 66 | 66 | 0.76% | 0.98% |  |
| C | 8657 | 6754 | 9 | 9 | 0.10% | 0.13% |  |
| D | 8657 | 6754 | 1095 | 1095 | 12.65% | 16.21% |  |
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 | 200525 | 1188.83 | 842 | 825 | 168.0 |
| A | 8 | 192 | 25233 | 145.3 | 842 | 825 | 168.0 |
| A | 13 | 254 | 11936 | 66.14 | 842 | 825 | 168.0 |
| B | 6 | 159 | 1810488 | 11357.62 | 837 | 816 | 159.3 |
| B | 6 | 36 | 320606 | 2007.02 | 837 | 816 | 159.3 |
| B | 12 | 111 | 19535 | 117.48 | 837 | 816 | 159.3 |
| C | 14 | 238 | 134869 | 693.99 | 826 | 831 | 193.1 |
| C | 10 | 22 | 73965 | 378.66 | 826 | 831 | 193.1 |
| C | 3 | 233 | 64986 | 332.17 | 826 | 831 | 193.1 |
| D | 8 | 195 | 5549033 | 28880.46 | 798 | 779 | 192.1 |
| D | 12 | 33 | 255596 | 1326.41 | 798 | 779 | 192.1 |
| D | 10 | 253 | 250840 | 1301.65 | 798 | 779 | 192.1 |
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 |  |