Observation information
- date-obs: 2017-07-14
- time-obs: 05:21:13.667400000
- date-end: 2017-07-14
- time-end: 09:48:21.670500000
- obs_id: A03_068T01_9000001380
- exposure: 6654.53425631
- sourceid: 4U 1957+11
- observer: devraj
- ra_pnt: 299.8505
- dec_pnt: 11.70893
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_068T01_9000001380_09699cztM0_level2.evt
| modeM0/AS1A03_068T01_9000001380_09699cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,064,741,760 | 152,844,480 |
| Size | 1015.4 MB
| 145.8 MB
|
| Events in quadrant A | 7,046,985 | 949,881 |
| Events in quadrant B | 6,757,281 | 968,291 |
| Events in quadrant C | 7,146,185 | 918,724 |
| Events in quadrant D | 10,379,215 | 855,181 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25 | 0 |
| B | 0 | 25 | 0 |
| C | 0 | 25 | 0 |
| D | 0 | 25 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 276 | 0 |
| B | 0 | 276 | 0 |
| C | 0 | 276 | 0 |
| D | 0 | 276 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28715 | 2 |
| B | 0 | 28054 | 2 |
| C | 0 | 29790 | 2 |
| D | 0 | 39535 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 13549 | 225 | 1.660639% |
| B | 13549 | 224 | 1.653259% |
| C | 13549 | 296 | 2.184663% |
| D | 13549 | 1381 | 10.192634% |
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 | 16029 | 13551 | 0 | 0 | 0.00% | 0.00% |  |
| B | 16029 | 13551 | 3 | 3 | 0.02% | 0.02% |  |
| C | 16029 | 13551 | 100 | 100 | 0.62% | 0.74% |  |
| D | 16029 | 13551 | 1095 | 1095 | 6.83% | 8.08% |  |
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 | 1 | 162 | 192314 | 542.68 | 1739 | 1705 | 351.2 |
| A | 1 | 178 | 70784 | 196.67 | 1739 | 1705 | 351.2 |
| A | 1 | 161 | 61255 | 169.54 | 1739 | 1705 | 351.2 |
| B | 12 | 111 | 38496 | 112.65 | 1730 | 1695 | 326.7 |
| B | 11 | 111 | 31611 | 91.57 | 1730 | 1695 | 326.7 |
| B | 14 | 111 | 25817 | 73.84 | 1730 | 1695 | 326.7 |
| C | 14 | 234 | 663648 | 1748.03 | 1659 | 1676 | 378.7 |
| C | 13 | 61 | 12498 | 28.58 | 1659 | 1676 | 378.7 |
| C | 9 | 237 | 6075 | 11.61 | 1659 | 1676 | 378.7 |
| D | 1 | 52 | 4037760 | 9749.05 | 1611 | 1579 | 414.0 |
| D | 8 | 195 | 116922 | 278.6 | 1611 | 1579 | 414.0 |
| D | 7 | 71 | 67330 | 158.82 | 1611 | 1579 | 414.0 |
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 |  |