Observation information
- date-obs: 2021-08-07
- time-obs: 09:35:47.936800000
- date-end: 2021-08-08
- time-end: 09:26:13.935100000
- obs_id: A10_103T09_9000004630
- exposure: 18583.3884259
- sourceid: NGC 6637
- observer: annapurni
- ra_pnt: 277.8463
- dec_pnt: -32.34808
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_103T09_9000004630cztM0_level2.fits
| modeM0/AS1A10_103T09_9000004630cztM0_level2_quad_clean.evt
|
| Size (bytes) | 508,086,720 | 372,409,920 |
| Size | 484.5 MB
| 355.2 MB
|
| Events in quadrant A | 3,204,446 | 2,047,920 |
| Events in quadrant B | 2,968,678 | 2,010,426 |
| Events in quadrant C | 3,014,518 | 1,927,285 |
| Events in quadrant D | 2,699,727 | 1,791,806 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 84 | 0 |
| B | 0 | 84 | 0 |
| C | 0 | 84 | 0 |
| D | 0 | 84 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 112065 | 0 |
| B | 0 | 165919 | 0 |
| C | 0 | 139509 | 0 |
| D | 0 | 124289 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1040 | 0 |
| B | 0 | 1040 | 0 |
| C | 0 | 1040 | 0 |
| D | 0 | 1040 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 50991 | 730 | 1.431625% |
| B | 50966 | 1805 | 3.541577% |
| C | 50965 | 2646 | 5.191798% |
| D | 50983 | 1307 | 2.563600% |
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 | 85510 | 51037 | 0 | 0 | 0.00% | 0.00% |  |
| B | 85510 | 51002 | 0 | 0 | 0.00% | 0.00% |  |
| C | 85510 | 51018 | 0 | 0 | 0.00% | 0.00% |  |
| D | 85510 | 51010 | 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 | 2656 | 9.06 | 836 | 787 | 206.3 |
| A | 7 | 110 | 2576 | 8.67 | 836 | 787 | 206.3 |
| A | 9 | 19 | 2396 | 7.8 | 836 | 787 | 206.3 |
| B | 2 | 9 | 2404 | 10.71 | 787 | 753 | 154.2 |
| B | 2 | 8 | 2027 | 8.26 | 787 | 753 | 154.2 |
| B | 5 | 128 | 2018 | 8.2 | 787 | 753 | 154.2 |
| C | 1 | 81 | 2346 | 7.95 | 797 | 747 | 201.2 |
| C | 1 | 80 | 2339 | 7.91 | 797 | 747 | 201.2 |
| C | 3 | 202 | 2247 | 7.45 | 797 | 747 | 201.2 |
| D | 10 | 189 | 1974 | 6.2 | 773 | 707 | 204.5 |
| D | 6 | 231 | 1891 | 5.79 | 773 | 707 | 204.5 |
| D | 7 | 3 | 1886 | 5.77 | 773 | 707 | 204.5 |
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 |  |