Observation information
- date-obs: 2019-03-23
- time-obs: 11:19:18.648800000
- date-end: 2019-03-23
- time-end: 13:24:45.648600000
- obs_id: A05_173T01_9000002812
- exposure: 3518.88159296
- 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_18833cztM0_level2.evt
| modeM0/AS1A05_173T01_9000002812_18833cztM0_level2_quad_clean.evt
|
| Size (bytes) | 528,595,200 | 82,846,080 |
| Size | 504.1 MB
| 79.0 MB
|
| Events in quadrant A | 3,339,396 | 529,986 |
| Events in quadrant B | 3,433,644 | 535,453 |
| Events in quadrant C | 3,296,019 | 508,105 |
| Events in quadrant D | 5,501,360 | 484,260 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13534 | 1 |
| B | 0 | 13807 | 1 |
| C | 0 | 13429 | 1 |
| D | 0 | 20566 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6467 | 100 | 1.546312% |
| B | 6468 | 87 | 1.345083% |
| C | 6468 | 87 | 1.345083% |
| D | 6468 | 483 | 7.467532% |
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 | 7527 | 6469 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7528 | 6470 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7528 | 6470 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7528 | 6470 | 390 | 390 | 5.18% | 6.03% |  |
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 | 38745 | 221.34 | 847 | 831 | 171.3 |
| A | 8 | 205 | 14394 | 79.18 | 847 | 831 | 171.3 |
| A | 13 | 254 | 11025 | 59.51 | 847 | 831 | 171.3 |
| B | 7 | 220 | 45197 | 278.27 | 836 | 817 | 159.5 |
| B | 0 | 229 | 29770 | 181.54 | 836 | 817 | 159.5 |
| B | 4 | 216 | 29393 | 179.18 | 836 | 817 | 159.5 |
| C | 14 | 238 | 124733 | 662.15 | 799 | 805 | 187.2 |
| C | 0 | 207 | 25998 | 134.61 | 799 | 805 | 187.2 |
| C | 5 | 112 | 15948 | 80.91 | 799 | 805 | 187.2 |
| D | 7 | 238 | 1659010 | 8485.47 | 803 | 781 | 195.4 |
| D | 7 | 38 | 493304 | 2520.33 | 803 | 781 | 195.4 |
| D | 1 | 52 | 267434 | 1364.51 | 803 | 781 | 195.4 |
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 |  |