Observation information
- date-obs: 2017-12-18
- time-obs: 04:42:04.190500000
- date-end: 2017-12-18
- time-end: 10:27:12.189800000
- obs_id: A04_112T01_9000001778
- exposure: 16475.9189147
- sourceid: LMC X-3
- observer: anuj
- ra_pnt: 84.73454
- dec_pnt: -64.08417
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_112T01_9000001778_12023cztM0_level2.evt
| modeM0/AS1A04_112T01_9000001778_12023cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,520,049,600 | 299,695,680 |
| Size | 1.4 GB
| 285.8 MB
|
| Events in quadrant A | 9,749,318 | 1,992,261 |
| Events in quadrant B | 12,873,812 | 1,959,789 |
| Events in quadrant C | 8,112,974 | 2,019,227 |
| Events in quadrant D | 14,061,030 | 1,841,670 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 41486 | 5 |
| B | 0 | 50178 | 4 |
| C | 0 | 37382 | 4 |
| D | 0 | 53724 | 4 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 374 | 0 |
| B | 0 | 374 | 0 |
| C | 0 | 374 | 0 |
| D | 0 | 374 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 24 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18338 | 595 | 3.244629% |
| B | 18338 | 1408 | 7.678046% |
| C | 18338 | 234 | 1.276039% |
| D | 18338 | 1639 | 8.937725% |
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 | 20709 | 18339 | 239 | 239 | 1.15% | 1.30% |  |
| B | 20709 | 18339 | 785 | 785 | 3.79% | 4.28% |  |
| C | 20709 | 18339 | 0 | 0 | 0.00% | 0.00% |  |
| D | 20709 | 18339 | 1400 | 1400 | 6.76% | 7.63% |  |
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 | 14 | 63 | 643874 | 1497.34 | 2110 | 2060 | 428.6 |
| A | 13 | 248 | 404122 | 938.0 | 2110 | 2060 | 428.6 |
| A | 1 | 162 | 205739 | 475.18 | 2110 | 2060 | 428.6 |
| B | 4 | 239 | 1944363 | 4917.05 | 2071 | 2013 | 395.0 |
| B | 3 | 64 | 1459246 | 3688.98 | 2071 | 2013 | 395.0 |
| B | 4 | 206 | 571178 | 1440.84 | 2071 | 2013 | 395.0 |
| C | 13 | 61 | 15172 | 27.37 | 2079 | 2086 | 478.2 |
| C | 14 | 234 | 9210 | 14.9 | 2079 | 2086 | 478.2 |
| C | 3 | 202 | 5185 | 6.48 | 2079 | 2086 | 478.2 |
| D | 1 | 52 | 2705144 | 5698.63 | 2000 | 1942 | 474.4 |
| D | 7 | 80 | 2255410 | 4750.55 | 2000 | 1942 | 474.4 |
| D | 8 | 195 | 463896 | 973.85 | 2000 | 1942 | 474.4 |
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 |  |