AuScope VLBI Operations Wiki

correlation

2021-01-07T05:38:47+00:00

Correlation on the vc cluster & optimisation The vc cluster consists of 9 flexbuff-style machines, each with 20 CPUs and 12 SAS/SATA slots. There is a shared home area (hosted by vc0) which is used in correlation by the head node. The aim is to bring this up to a

flexbuff

2020-03-26T21:13:12+00:00

Flexbuff and Transfer machines Creating raid-z1 with 6 disks and zfs mode. zpool create raid0 raidz -m /mnt/raid0 -o ashift=12 ata-ST4000DM000-1F2168_Z30280A0 ata-ST4000DM000-1F2168_Z302H4QT ata-ST4000DM000-1F2168_Z3027CXY ata-ST4000DM000-1F2168_Z3026TDT ata-ST4000DM000-1F2168_Z302H4V4 ata-ST4000DM000-1F2168_Z3027BJA

here

2015-01-17T03:03:54+00:00

Archive This page contains all old information on previous observations, old antenna and back end set ups etc. VEX Campaign, December 2012

katherine_todo

2014-07-26T06:21:03+00:00

Katherine To Do * Phase cal testing (temperature stabilisation? Bad filters?) * DBBC service - check cables, internal connections, bad boards) * Apparently working as of 25/7/14 after replacing Fila OUT, reseating stack & PCI7200 card & cables.

list

2016-11-01T02:19:13+00:00

Publications In order to make it easier to keep up to date with the most recent publications, please order them chronologically (newest on top). 2016 2015 * A. Hellerschmied, J. Böhm, R. Haas, J. Kodet, A. Neidhardt, L. Plank: Scheduling of VLBI observations to satellites with the Vienna VLBI Software (VieVS)

members

2016-11-01T01:43:04+00:00

Members of WG 7 IVS WG 7 is chaired by Rüdiger Haas, and the vice-cahirs are Alexander Neidhardt and Harald Schuh. The 20 members of IVS WG-7 are Yoaz Bar-Sever, Yuri Bondarenko, John Gipson, Rüdiger Haas, Ed Himwich, Thomas Hobiger, Urs Hugentobler, Jan Kodet, Younghee Kwak, Li Liu, Benjamin Männel, Axel Nothnagel, Laura La Porta, Lucia Plank, Sergei Pogrebenko, Ulrich Schreiber, Geshi Tang, Vincenza Tornatore.

network

2019-09-09T06:24:17+00:00

Network connection IPs Orig IP Dest Usage FlexBuff 192.168.1.7 DBBC 3 IF A FlexBuff 192.168.1.8 DBBC 3 IF B FlexBuff 192.168.1.9 DBBC 3 IF C FlexBuff 192.168.1.10 DBBC 3 IF D FlexBuff 192.168.1.11 DBBC 3 IF E FlexBuff

observations_of_gnss-satellites_on_the_hobart-ceduna_baseline

2016-11-01T03:00:30+00:00

Observations of GNSS-satellites on the Hobart Ceduna baseline A series of test observations were performed with the aim to streamline the complete process including scheduling, correlation, fringe fitting and creation of total delays and a geodetic analysis. We use VieVS for scheduling, the NASA field system for tracking, DiFX for correlation, fourfit for fringe fitting and VieVS for the analysis. A journal publication is in work. this work is led by the University of Tasmania (L. Plank, J. McC…

observing_apod

2016-11-01T03:13:06+00:00

Observing APOD APOD, a chinese CubSat has been in Space since late 2015. One of its satellites carries a VLBI beacon. Since then, several efforts were undertaken to observe APOD. Observing APOD with AuScope We have had several attempts in observing APOD with the AuScope antennas in Hobart, Katherine and Yarragadee. Due to the long baselines, the tracks are relatively short. Our attempts here at the University of Tasmania to correlate the data have not really been successful so far. However, …

pcfs_servers

2011-10-26T06:37:12+00:00

PCFS Servers Hardware CPU: Core2Duo E7200 2.53GHz (2 cores) RAM: 1GB OS: Debian 5.0.7 32-bit (FS supported platform) User Accounts: oper, prog Purpose: Running the FS at the antenna site. Backup: RAID mirror. 3 Disks. If HDD failure: Check that spare disk has been correctly added to the mirror and synchronised. Determine which physical disk has failed. If someone local, turn machine off, extract failed disk, and insert replacement.

restart_monica_rxmon_ifbox

2016-05-18T05:52:39+00:00

Restarting Rxmon & IFBox If you have issues setting the attenuation levels, and are seeing the error: WARNING: error s1 -104 ifpcn: time-out, connection closed Then you can try restarting Rxmon and IFBox on pcfs. To do this, ssh to pcfs[hb/ke/yg] and login as superuser. The commands to issue are:

sidebar

2016-02-15T23:02:17+00:00

* Home * Operations * Contact information * schedules * Documentation for operators * Handover notes * Current Issues * Meetings * Archive * Technical

sorts

2016-11-01T03:15:30+00:00

Satellite Observations by Radio Telescopes for Superior Reference Frame Interconnections (SORTS)

start

2021-04-21T02:23:20+00:00

AuScope VLBI Operations Wiki Welcome to the AuScope VLBI Operations Wiki. This Wiki is divided into two main sections: Observing - Documentation for observers, including set-up details and troubleshooting when observing. Operations - Documentation for operations staff, including data transfers, configuration changes, hardware upgrades, etc.

yarragadee_todo

2015-10-14T05:57:35+00:00

ANTENNA STUFF Change gear oil - Brett Grease bull gear and jack screw Jack and Peter T seal near el bearing into hub - Brett cut cable ties in hub - Brett drill drain holes in hub - Brett paint top of turning head - Brett maybe fit doors on hub - Brett