Observation information
- date-obs: 2017-06-04
- time-obs: 12:07:42.174800000
- date-end: 2017-06-04
- time-end: 14:27:12.171000000
- obs_id: A03_105T01_9000001268
- exposure: 3873.42854165
- sourceid: 4U 1909+09
- observer: varun
- ra_pnt: 287.4042
- dec_pnt: 9.830278
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_105T01_9000001268_09109cztM0_level2.evt
| modeM0/AS1A03_105T01_9000001268_09109cztM0_level2_quad_clean.evt
|
| Size (bytes) | 564,837,120 | 81,509,760 |
| Size | 538.7 MB
| 77.7 MB
|
| Events in quadrant A | 4,289,645 | 482,686 |
| Events in quadrant B | 4,041,744 | 486,272 |
| Events in quadrant C | 3,830,475 | 474,111 |
| Events in quadrant D | 4,397,233 | 465,312 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17681 | 4 |
| B | 0 | 17199 | 5 |
| C | 0 | 17039 | 3 |
| D | 0 | 18418 | 5 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 166 | 0 |
| B | 0 | 166 | 0 |
| C | 0 | 166 | 0 |
| D | 0 | 166 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8050 | 342 | 4.248447% |
| B | 8049 | 355 | 4.410486% |
| C | 8050 | 286 | 3.552795% |
| D | 8049 | 380 | 4.721083% |
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 | 8370 | 8050 | 14 | 14 | 0.17% | 0.17% |  |
| B | 8370 | 8051 | 3 | 3 | 0.04% | 0.04% |  |
| C | 8370 | 8053 | 5 | 5 | 0.06% | 0.06% |  |
| D | 8370 | 8052 | 40 | 40 | 0.48% | 0.50% |  |
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 | 8 | 5 | 237587 | 1137.31 | 1011 | 990 | 208.0 |
| A | 15 | 174 | 72059 | 341.63 | 1011 | 990 | 208.0 |
| A | 1 | 162 | 60196 | 284.6 | 1011 | 990 | 208.0 |
| B | 0 | 214 | 91993 | 459.52 | 1008 | 982 | 198.1 |
| B | 12 | 111 | 22836 | 110.34 | 1008 | 982 | 198.1 |
| B | 11 | 111 | 18372 | 87.8 | 1008 | 982 | 198.1 |
| C | 14 | 234 | 11608 | 46.32 | 975 | 980 | 229.5 |
| C | 13 | 61 | 7400 | 27.98 | 975 | 980 | 229.5 |
| C | 12 | 4 | 7325 | 27.65 | 975 | 980 | 229.5 |
| D | 1 | 52 | 397034 | 1600.61 | 970 | 943 | 247.5 |
| D | 13 | 104 | 79075 | 315.73 | 970 | 943 | 247.5 |
| D | 6 | 225 | 76850 | 306.74 | 970 | 943 | 247.5 |
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 |  |