Observation information
- date-obs: 2019-03-21
- time-obs: 16:34:31.636100000
- date-end: 2019-03-24
- time-end: 01:04:50.649400000
- obs_id: A05_173T01_9000002812
- exposure: 76773.713013
- 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_9000002812cztM0_level2.fits
| modeM0/AS1A05_173T01_9000002812cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,653,917,760 | 1,445,256,000 |
| Size | 1.5 GB
| 1.3 GB
|
| Events in quadrant A | 10,256,508 | 8,491,006 |
| Events in quadrant B | 9,748,992 | 8,436,467 |
| Events in quadrant C | 9,919,198 | 8,047,364 |
| Events in quadrant D | 8,594,946 | 7,228,116 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3444 | 0 |
| B | 0 | 3444 | 0 |
| C | 0 | 3444 | 0 |
| D | 0 | 3444 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 246 | 0 |
| B | 0 | 246 | 0 |
| C | 0 | 246 | 0 |
| D | 0 | 246 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 355269 | 0 |
| B | 0 | 373560 | 0 |
| C | 0 | 376081 | 0 |
| D | 0 | 419200 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 168821 | 1963 | 1.162770% |
| B | 168821 | 3114 | 1.844557% |
| C | 168821 | 4029 | 2.386551% |
| D | 168821 | 7228 | 4.281458% |
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 | 203133 | 168819 | 0 | 0 | 0.00% | 0.00% |  |
| B | 203133 | 168819 | 0 | 0 | 0.00% | 0.00% |  |
| C | 203133 | 168818 | 0 | 0 | 0.00% | 0.00% |  |
| D | 203133 | 168707 | 0 | 0 | 0.00% | 0.00% |  |
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 | 29 | 8736 | 9.5 | 2672 | 2507 | 655.6 |
| A | 7 | 110 | 8411 | 9.01 | 2672 | 2507 | 655.6 |
| A | 9 | 19 | 7635 | 7.82 | 2672 | 2507 | 655.6 |
| B | 2 | 9 | 7774 | 10.47 | 2582 | 2457 | 508.0 |
| B | 2 | 8 | 6633 | 8.22 | 2582 | 2457 | 508.0 |
| B | 14 | 254 | 6481 | 7.92 | 2582 | 2457 | 508.0 |
| C | 12 | 241 | 7009 | 6.77 | 2620 | 2444 | 674.1 |
| C | 3 | 126 | 6742 | 6.38 | 2620 | 2444 | 674.1 |
| C | 12 | 250 | 6621 | 6.2 | 2620 | 2444 | 674.1 |
| D | 10 | 190 | 6482 | 6.53 | 2456 | 2236 | 650.1 |
| D | 3 | 14 | 6159 | 6.03 | 2456 | 2236 | 650.1 |
| D | 10 | 189 | 6075 | 5.91 | 2456 | 2236 | 650.1 |
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 |  |