Observation information
- date-obs: 2021-08-07
- time-obs: 23:15:23.925200000
- date-end: 2021-08-08
- time-end: 01:43:49.927300000
- obs_id: A10_103T09_9000004630
- exposure: 4749.47562383
- 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_9000004630_31689cztM0_level2.evt
| modeM0/AS1A10_103T09_9000004630_31689cztM0_level2_quad_clean.evt
|
| Size (bytes) | 624,003,840 | 100,630,080 |
| Size | 595.1 MB
| 96.0 MB
|
| Events in quadrant A | 3,462,254 | 659,251 |
| Events in quadrant B | 6,221,047 | 647,479 |
| Events in quadrant C | 4,335,983 | 626,276 |
| Events in quadrant D | 4,393,496 | 614,943 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14982 | 2 |
| B | 0 | 23701 | 2 |
| C | 0 | 17503 | 2 |
| D | 0 | 17896 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7176 | 39 | 0.543478% |
| B | 7177 | 282 | 3.929218% |
| C | 7177 | 319 | 4.444754% |
| D | 7177 | 202 | 2.814546% |
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 | 8906 | 7178 | 2 | 2 | 0.02% | 0.03% |  |
| B | 8907 | 7179 | 98 | 98 | 1.10% | 1.37% |  |
| C | 8907 | 7179 | 135 | 135 | 1.52% | 1.88% |  |
| D | 8907 | 7179 | 142 | 142 | 1.59% | 1.98% |  |
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 | 27721 | 150.11 | 883 | 864 | 178.9 |
| A | 15 | 174 | 19295 | 103.02 | 883 | 864 | 178.9 |
| A | 13 | 254 | 14017 | 73.52 | 883 | 864 | 178.9 |
| B | 6 | 159 | 2020496 | 12103.19 | 867 | 843 | 166.9 |
| B | 10 | 245 | 375838 | 2247.23 | 867 | 843 | 166.9 |
| B | 0 | 229 | 148611 | 885.53 | 867 | 843 | 166.9 |
| C | 0 | 10 | 477932 | 2448.95 | 830 | 834 | 194.8 |
| C | 3 | 233 | 403433 | 2066.54 | 830 | 834 | 194.8 |
| C | 14 | 238 | 133571 | 681.34 | 830 | 834 | 194.8 |
| D | 8 | 195 | 487524 | 2458.27 | 839 | 817 | 198.0 |
| D | 13 | 249 | 412585 | 2079.77 | 839 | 817 | 198.0 |
| D | 12 | 233 | 139698 | 701.46 | 839 | 817 | 198.0 |
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 |  |