Observation information
- date-obs: 2019-03-23
- time-obs: 16:30:15.650400000
- date-end: 2019-03-23
- time-end: 18:39:07.651200000
- obs_id: A05_173T01_9000002812
- exposure: 3543.28010042
- 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_18836cztM0_level2.evt
| modeM0/AS1A05_173T01_9000002812_18836cztM0_level2_quad_clean.evt
|
| Size (bytes) | 561,196,800 | 77,414,400 |
| Size | 535.2 MB
| 73.8 MB
|
| Events in quadrant A | 3,662,492 | 470,802 |
| Events in quadrant B | 4,005,682 | 470,150 |
| Events in quadrant C | 3,728,370 | 454,877 |
| Events in quadrant D | 5,093,922 | 429,626 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15497 | 1 |
| B | 0 | 16474 | 1 |
| C | 0 | 15690 | 2 |
| D | 0 | 20066 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7447 | 72 | 0.966832% |
| B | 7448 | 129 | 1.732009% |
| C | 7447 | 155 | 2.081375% |
| D | 7447 | 366 | 4.914731% |
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 | 7732 | 7448 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7733 | 7449 | 22 | 22 | 0.28% | 0.30% |  |
| C | 7732 | 7448 | 11 | 11 | 0.14% | 0.15% |  |
| D | 7732 | 7448 | 268 | 268 | 3.47% | 3.60% |  |
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 | 13 | 254 | 13037 | 63.67 | 938 | 919 | 190.3 |
| A | 9 | 143 | 12145 | 58.98 | 938 | 919 | 190.3 |
| A | 11 | 29 | 11375 | 54.94 | 938 | 919 | 190.3 |
| B | 0 | 229 | 91316 | 496.8 | 931 | 908 | 182.0 |
| B | 12 | 18 | 59949 | 324.44 | 931 | 908 | 182.0 |
| B | 4 | 216 | 43183 | 232.3 | 931 | 908 | 182.0 |
| C | 14 | 238 | 135124 | 637.96 | 889 | 894 | 210.4 |
| C | 9 | 54 | 66387 | 311.27 | 889 | 894 | 210.4 |
| C | 0 | 207 | 32364 | 149.57 | 889 | 894 | 210.4 |
| D | 7 | 238 | 1104102 | 4990.15 | 899 | 874 | 221.1 |
| D | 1 | 52 | 312163 | 1408.03 | 899 | 874 | 221.1 |
| D | 12 | 225 | 126477 | 568.13 | 899 | 874 | 221.1 |
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 |  |