Observation information
- date-obs: 2017-02-27
- time-obs: 09:31:36.480700000
- date-end: 2017-02-27
- time-end: 11:44:11.475000000
- obs_id: A02_029T01_9000001058
- exposure: 3761.87621935
- sourceid: 4U 1724-30
- observer: sudip
- ra_pnt: 261.8885
- dec_pnt: -30.80206
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_029T01_9000001058_07672cztM0_level2.evt
| modeM0/AS1A02_029T01_9000001058_07672cztM0_level2_quad_clean.evt
|
| Size (bytes) | 448,920,000 | 86,276,160 |
| Size | 428.1 MB
| 82.3 MB
|
| Events in quadrant A | 3,176,105 | 549,231 |
| Events in quadrant B | 3,336,296 | 556,061 |
| Events in quadrant C | 3,121,933 | 545,171 |
| Events in quadrant D | 3,527,726 | 517,036 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13276 | 3 |
| B | 0 | 13694 | 2 |
| C | 0 | 13235 | 2 |
| D | 0 | 14500 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6378 | 89 | 1.395422% |
| B | 6378 | 88 | 1.379743% |
| C | 6378 | 49 | 0.768266% |
| D | 6378 | 114 | 1.787394% |
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 | 7618 | 6379 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7618 | 6379 | 7 | 7 | 0.09% | 0.11% |  |
| C | 7618 | 6379 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7618 | 6379 | 28 | 28 | 0.37% | 0.44% |  |
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 | 0 | 226 | 8073 | 43.78 | 822 | 807 | 166.0 |
| A | 12 | 194 | 7373 | 39.56 | 822 | 807 | 166.0 |
| A | 13 | 170 | 5639 | 29.11 | 822 | 807 | 166.0 |
| B | 5 | 255 | 82212 | 529.23 | 816 | 798 | 153.8 |
| B | 0 | 214 | 29509 | 186.63 | 816 | 798 | 153.8 |
| B | 12 | 111 | 14337 | 88.01 | 816 | 798 | 153.8 |
| C | 13 | 61 | 6137 | 28.94 | 797 | 801 | 184.4 |
| C | 10 | 22 | 5531 | 25.65 | 797 | 801 | 184.4 |
| C | 9 | 68 | 5082 | 23.22 | 797 | 801 | 184.4 |
| D | 2 | 152 | 143945 | 742.76 | 800 | 780 | 192.7 |
| D | 12 | 0 | 125237 | 645.7 | 800 | 780 | 192.7 |
| D | 13 | 104 | 75272 | 386.47 | 800 | 780 | 192.7 |
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 |  |