Observation information
- date-obs: 2020-08-14
- time-obs: 07:15:20.550400000
- date-end: 2020-08-14
- time-end: 14:13:51.531100000
- obs_id: A09_088T01_9000003808
- exposure: 14741.0319966
- 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_9000003808_26382cztM0_level2.evt
| modeM0/AS1A09_088T01_9000003808_26382cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,383,747,200 | 297,498,240 |
| Size | 2.2 GB
| 283.7 MB
|
| Events in quadrant A | 11,332,347 | 1,949,471 |
| Events in quadrant B | 10,573,954 | 1,996,507 |
| Events in quadrant C | 26,904,722 | 1,708,116 |
| Events in quadrant D | 21,872,358 | 1,810,136 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27 | 0 |
| B | 0 | 27 | 0 |
| C | 0 | 27 | 0 |
| D | 0 | 27 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 48540 | 0 |
| B | 0 | 45962 | 0 |
| C | 0 | 95590 | 0 |
| D | 0 | 80052 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 22436 | 488 | 2.175076% |
| B | 22436 | 306 | 1.363879% |
| C | 22436 | 5941 | 26.479765% |
| D | 22436 | 3017 | 13.447139% |
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 | 25111 | 22437 | 157 | 157 | 0.63% | 0.70% |  |
| B | 25111 | 22437 | 5 | 5 | 0.02% | 0.02% |  |
| C | 25111 | 22437 | 3465 | 3465 | 13.80% | 15.44% |  |
| D | 25111 | 22436 | 2438 | 2438 | 9.71% | 10.87% |  |
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 | 1024877 | 1923.37 | 2671 | 2613 | 531.5 |
| A | 13 | 254 | 37128 | 64.94 | 2671 | 2613 | 531.5 |
| A | 3 | 137 | 25359 | 42.8 | 2671 | 2613 | 531.5 |
| B | 0 | 230 | 87649 | 167.7 | 2670 | 2601 | 507.1 |
| B | 12 | 111 | 62207 | 117.53 | 2670 | 2601 | 507.1 |
| B | 11 | 111 | 56099 | 105.49 | 2670 | 2601 | 507.1 |
| C | 3 | 233 | 17213603 | 31548.61 | 2342 | 2356 | 545.5 |
| C | 14 | 238 | 370334 | 674.51 | 2342 | 2356 | 545.5 |
| C | 2 | 16 | 123929 | 222.85 | 2342 | 2356 | 545.5 |
| D | 1 | 52 | 6155667 | 10438.99 | 2485 | 2421 | 589.4 |
| D | 7 | 80 | 5718491 | 9697.32 | 2485 | 2421 | 589.4 |
| D | 11 | 176 | 417888 | 704.84 | 2485 | 2421 | 589.4 |
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 |  |