Observation information
- date-obs: 2017-08-13
- time-obs: 21:54:55.308500000
- date-end: 2017-08-14
- time-end: 00:06:28.309800000
- obs_id: A03_039T01_9000001462
- exposure: 5284.8208781
- sourceid: 4U 1735-44
- observer: anjali
- ra_pnt: 264.7429
- dec_pnt: -44.45
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_039T01_9000001462_10151cztM0_level2.evt
| modeM0/AS1A03_039T01_9000001462_10151cztM0_level2_quad_clean.evt
|
| Size (bytes) | 799,882,560 | 99,768,960 |
| Size | 762.8 MB
| 95.1 MB
|
| Events in quadrant A | 3,463,859 | 670,146 |
| Events in quadrant B | 3,938,260 | 672,512 |
| Events in quadrant C | 3,243,582 | 676,079 |
| Events in quadrant D | 13,071,846 | 480,411 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15609 | 3 |
| B | 0 | 16890 | 2 |
| C | 0 | 15251 | 2 |
| D | 0 | 43959 | 35 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 5 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7497 | 39 | 0.520208% |
| B | 7497 | 122 | 1.627318% |
| C | 7497 | 21 | 0.280112% |
| D | 7492 | 3644 | 48.638548% |
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 | 7812 | 7498 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7812 | 7498 | 48 | 48 | 0.61% | 0.64% |  |
| C | 7812 | 7498 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7811 | 7495 | 3538 | 3538 | 45.30% | 47.20% |  |
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 | 90926 | 512.14 | 856 | 839 | 175.9 |
| A | 8 | 15 | 62231 | 349.01 | 856 | 839 | 175.9 |
| A | 0 | 226 | 7816 | 39.66 | 856 | 839 | 175.9 |
| B | 4 | 239 | 301664 | 1830.31 | 856 | 835 | 164.4 |
| B | 0 | 219 | 132731 | 802.48 | 856 | 835 | 164.4 |
| B | 4 | 81 | 68493 | 411.65 | 856 | 835 | 164.4 |
| C | 14 | 67 | 14844 | 72.66 | 827 | 830 | 192.9 |
| C | 13 | 61 | 6345 | 28.6 | 827 | 830 | 192.9 |
| C | 14 | 234 | 2712 | 9.76 | 827 | 830 | 192.9 |
| D | 1 | 52 | 9030594 | 56074.44 | 663 | 641 | 161.0 |
| D | 8 | 195 | 422005 | 2616.6 | 663 | 641 | 161.0 |
| D | 12 | 110 | 334601 | 2073.83 | 663 | 641 | 161.0 |
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 |  |