Observation information
- date-obs: 2019-03-21
- time-obs: 23:37:46.670800000
- date-end: 2019-03-22
- time-end: 02:37:12.668200000
- obs_id: A05_173T01_9000002812
- exposure: 5900.28580646
- sourceid: GRS 1915+105
- observer: rawatdivya
- ra_pnt: 288.7991
- dec_pnt: 10.94602
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_173T01_9000002812_18811cztM0_level2.evt
| modeM0/AS1A05_173T01_9000002812_18811cztM0_level2_quad_clean.evt
|
| Size (bytes) | 622,249,920 | 121,812,480 |
| Size | 593.4 MB
| 116.2 MB
|
| Events in quadrant A | 4,354,706 | 776,055 |
| Events in quadrant B | 4,641,932 | 789,625 |
| Events in quadrant C | 5,053,921 | 753,672 |
| Events in quadrant D | 4,178,478 | 739,709 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 186 | 0 |
| B | 0 | 186 | 0 |
| C | 0 | 186 | 0 |
| D | 0 | 186 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18692 | 2 |
| B | 0 | 19612 | 2 |
| C | 0 | 20823 | 2 |
| D | 0 | 18665 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 9082 | 38 | 0.418410% |
| B | 9082 | 77 | 0.847831% |
| C | 9082 | 150 | 1.651619% |
| D | 9082 | 22 | 0.242237% |
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 | 10767 | 9084 | 0 | 0 | 0.00% | 0.00% |  |
| B | 10767 | 9084 | 11 | 11 | 0.10% | 0.12% |  |
| C | 10767 | 9084 | 7 | 7 | 0.07% | 0.08% |  |
| D | 10767 | 9084 | 4 | 4 | 0.04% | 0.04% |  |
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 | 4 | 2 | 16058 | 66.03 | 1122 | 1100 | 226.5 |
| A | 13 | 254 | 14516 | 59.23 | 1122 | 1100 | 226.5 |
| A | 0 | 226 | 9744 | 38.16 | 1122 | 1100 | 226.5 |
| B | 7 | 220 | 111238 | 510.03 | 1120 | 1093 | 216.0 |
| B | 4 | 216 | 46358 | 209.6 | 1120 | 1093 | 216.0 |
| B | 0 | 230 | 42473 | 191.61 | 1120 | 1093 | 216.0 |
| C | 3 | 233 | 605639 | 2406.08 | 1071 | 1079 | 251.3 |
| C | 14 | 238 | 168184 | 665.06 | 1071 | 1079 | 251.3 |
| C | 9 | 54 | 83859 | 329.46 | 1071 | 1079 | 251.3 |
| D | 2 | 234 | 39085 | 143.07 | 1085 | 1053 | 265.8 |
| D | 7 | 38 | 28547 | 103.43 | 1085 | 1053 | 265.8 |
| D | 7 | 96 | 20037 | 71.42 | 1085 | 1053 | 265.8 |
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 |  |