Observation information
- date-obs: 2018-02-13
- time-obs: 12:58:16.914700000
- date-end: 2018-02-13
- time-end: 15:02:30.915300000
- obs_id: G08_041T01_9000001892
- exposure: 2857.64546028
- sourceid: 4U 1700-377
- observer: jsyadav
- ra_pnt: 255.9866
- dec_pnt: -37.84414
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_041T01_9000001892_12869cztM0_level2.evt
| modeM0/AS1G08_041T01_9000001892_12869cztM0_level2_quad_clean.evt
|
| Size (bytes) | 599,365,440 | 67,970,880 |
| Size | 571.6 MB
| 64.8 MB
|
| Events in quadrant A | 3,288,299 | 427,929 |
| Events in quadrant B | 7,558,224 | 360,054 |
| Events in quadrant C | 3,042,662 | 423,120 |
| Events in quadrant D | 3,834,189 | 405,478 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13498 | 2 |
| B | 0 | 26685 | 1 |
| C | 0 | 12958 | 1 |
| D | 0 | 15373 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6320 | 110 | 1.740506% |
| B | 6320 | 1919 | 30.363924% |
| C | 6320 | 70 | 1.107595% |
| D | 6320 | 269 | 4.256329% |
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 | 7455 | 6321 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7455 | 6321 | 1350 | 1350 | 18.11% | 21.36% |  |
| C | 7454 | 6320 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7454 | 6320 | 189 | 189 | 2.54% | 2.99% |  |
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 | 15 | 174 | 96496 | 582.28 | 811 | 794 | 164.4 |
| A | 13 | 248 | 32895 | 195.31 | 811 | 794 | 164.4 |
| A | 15 | 222 | 15513 | 89.55 | 811 | 794 | 164.4 |
| B | 4 | 239 | 2330309 | 17958.78 | 694 | 678 | 129.7 |
| B | 0 | 85 | 2180991 | 16807.71 | 694 | 678 | 129.7 |
| B | 0 | 219 | 89537 | 685.0 | 694 | 678 | 129.7 |
| C | 4 | 112 | 7445 | 37.25 | 778 | 784 | 178.8 |
| C | 13 | 61 | 5742 | 27.72 | 778 | 784 | 178.8 |
| C | 3 | 202 | 1969 | 6.63 | 778 | 784 | 178.8 |
| D | 1 | 52 | 775668 | 4231.79 | 774 | 753 | 183.1 |
| D | 13 | 122 | 68215 | 368.41 | 774 | 753 | 183.1 |
| D | 2 | 234 | 27208 | 144.47 | 774 | 753 | 183.1 |
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 |  |