Observation information
- date-obs: 2020-04-02
- time-obs: 07:50:32.771300000
- date-end: 2020-04-02
- time-end: 13:21:55.759200000
- obs_id: A08_008T01_9000003596
- exposure: 14335.6214182
- sourceid: LMC X-1
- observer: vivek
- ra_pnt: 84.91179
- dec_pnt: -69.7432
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A08_008T01_9000003596_24398cztM0_level2.evt
| modeM0/AS1A08_008T01_9000003596_24398cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,206,789,120 | 275,198,400 |
| Size | 1.1 GB
| 262.4 MB
|
| Events in quadrant A | 8,283,659 | 1,798,523 |
| Events in quadrant B | 8,451,947 | 1,821,965 |
| Events in quadrant C | 9,114,389 | 1,750,230 |
| Events in quadrant D | 9,475,071 | 1,719,420 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 366 | 0 |
| B | 0 | 366 | 0 |
| C | 0 | 366 | 0 |
| D | 0 | 366 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 36667 | 3 |
| B | 0 | 36887 | 3 |
| C | 0 | 38853 | 3 |
| D | 0 | 40248 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18078 | 170 | 0.940370% |
| B | 18079 | 187 | 1.034349% |
| C | 18079 | 273 | 1.510039% |
| D | 18079 | 226 | 1.250069% |
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 | 19883 | 18081 | 0 | 0 | 0.00% | 0.00% |  |
| B | 19884 | 18082 | 5 | 5 | 0.03% | 0.03% |  |
| C | 19884 | 18082 | 3 | 3 | 0.02% | 0.02% |  |
| D | 19884 | 18082 | 57 | 57 | 0.29% | 0.32% |  |
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 | 13 | 254 | 30252 | 65.37 | 2148 | 2101 | 430.6 |
| A | 3 | 137 | 19638 | 40.72 | 2148 | 2101 | 430.6 |
| A | 0 | 226 | 18215 | 37.42 | 2148 | 2101 | 430.6 |
| B | 12 | 111 | 50179 | 118.7 | 2131 | 2074 | 405.3 |
| B | 11 | 111 | 45097 | 106.16 | 2131 | 2074 | 405.3 |
| B | 4 | 52 | 42794 | 100.47 | 2131 | 2074 | 405.3 |
| C | 7 | 247 | 675683 | 1421.19 | 2048 | 2055 | 474.0 |
| C | 14 | 238 | 327898 | 687.45 | 2048 | 2055 | 474.0 |
| C | 2 | 16 | 95840 | 197.86 | 2048 | 2055 | 474.0 |
| D | 1 | 52 | 1384294 | 2751.87 | 2078 | 2014 | 502.3 |
| D | 8 | 195 | 109485 | 213.95 | 2078 | 2014 | 502.3 |
| D | 2 | 234 | 91387 | 177.92 | 2078 | 2014 | 502.3 |
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 |  |