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Next: Contingency Plans
Previous: Correlator Products
Mission Operations Data Transfer
The method for exchange of SVLBI data products will be via anonymous or restricted-access file transfer protocol (FTP) on designated computer sites. Table below lists the nodes involved in the data exchange process. Furthermore, an ISDN line between the JPL/DOTS and the RSOG is in place.
Table: Mission Element FTP Sites
Site | Host Name | IP Address | Account |
GOCG | ftp.berc.rssi.ru | 194.85.215.30 | anonymous |
RSOG | ftp.asc.rssi.ru | 133.74.17.21 | anonymous |
DOTS | dots.jpl.nasa.gov | 137.78.8.207 | anonymous |
Green Bank | ftp.gb.nrao.edu | 192.33.116.115 | anonymous |
JPL MMNAV | oscar.jpl.nasa.gov | 128.149.139.3 | (*) |
VLBA Correlator | aspen.aoc.nrao.edu | 146.88.5.8 | vlbiobs (*) |
S2 Correlator | ftp.drao.nrc.ca | 192.139.21.39 | anonymous |
or | 192.139.21.65 | ||
U. of Calgary | cougar.ras.ucalgary.ca | 136.159.55.14 | anonymous and (*) |
EVN Regional Server | vlbeer.ira.bo.cnr.it | 192.167.165.196 | evn (*) |
VLBA Regional Server | aspen.aoc.nrao.edu | 146.88.5.8 | vlbiobs (*) |
ATNF Regional Server | ftp.atnf.csiro.au | 130.155.194.32 | anonymous |
DSN 70m Regional Server | dsn.jpl.nasa.gov | 137.79.62.111 | anonymous |
Arecibo server | ftp.naic.edu | 192.65.176.4 | anonymous |
(*) indicates that a password is needed to gain access to these accounts. These may be obtained on request. Passwords should not be exchanged by electronic means.
Mission Element FTP Directory Structures
Root/ | Sub/ | Sub/ | Sub/ | Sub/ | Sub/ | Ext |
spectr/ | ra/ | schedule/ | longsched/ | (gst) | ||
srtsched/ | (srs) | |||||
short/ | spr/ | (spr) | ||||
tpf/ | (tpf) | |||||
status | constraint/ | (cns) | ||||
data/ | srt/ | push/ | kutlm/ | (ktu) | ||
xsoe/ | (xse) | |||||
oddata/ | predict/ | short/ | (opr) | |||
mid/ | (opr) | |||||
long/ | (opr) | |||||
mbc/ | (onp) | |||||
scef/ | (scf) | |||||
mbcicv/ | track/ | (icv) | ||||
mbcodf/ | xdop/ | (odf) | ||||
cpdop/ | (...) |
Root/ | Sub/ | Sub/ | Sub/ | Sub/ | Sub/ | Ext |
Radio- | ||||||
Astron/ | RAoper/ | status/ | RSOG/ | (svg) | ||
sat/ | (ssa) | |||||
corr/ | (sco) | |||||
grt/ | (srt) | |||||
gts/ | (stX) | |||||
schedule/ | longsched/ | (gst) | ||||
grtsched/ | drg/ | mmmyy/ | (drg, sum) | |||
evn/ | mmmyy/ | (skd, sum) | ||||
japan/ | mmmyy/ | (drg, skd) | ||||
s2/ | mmmyy/ | (skd, sum) | ||||
vlba/ | mmmyy/ | (crd, sum) | ||||
summary/ | (sum) | |||||
srtsched/ | (srs) | |||||
data/ | srt/ | push/ | kutlm/ | (ktu) | ||
delta_t/ | (kcu) | |||||
corrlog/ | (klu, kls) | |||||
perflog/ | (kpu) | |||||
gb/ | kutlm/ | (ktg) | ||||
kutlm2/ | (ktg) | |||||
delta_t/ | (kcg) | |||||
corrlog/ | (klg, ksg) | |||||
perflog/ | (kpg) | |||||
dsn/ | kutlm/ | (ktd,ktm,ktt) | ||||
delta_t/ | (kcd,kcm,kct) | |||||
corrlog/ | (kld,klm,klt) | |||||
(ksd,ksm,kst) | ||||||
perflog/ | (kpd,kpm,kpt) | |||||
mondata/ | (kmd,kmm,kmt) | |||||
phred/ | (krd,krm,krt) | |||||
xsoe/ | (xse) | |||||
corrinputs/ | log/mmmyy/ | (log.vs, slg.vs, | ||||
(vlg.vs, log.Xz) | ||||||
(vlg.Xz, slg.Xz) | ||||||
delta_t/ | (kcg,kcd,kcm, | |||||
kct,kcu) | ||||||
calib/ | (tsm.vs) | |||||
grt/(TBD) | corrinputs/ | log/ | (log.XX) | |||
clock/ | (gps.XX), | |||||
antab/ | (agt.XX) | |||||
pclod/ | (pct.XX) | |||||
uvflg/ | (flg.XX) | |||||
oddata/ | predict/ | short/ | (opr) | |||
mid/ | (opr) | |||||
long/ | (opr) | |||||
mbc/ | (onp) | |||||
scef/ | (scf) | |||||
mbcodf/ | cpband/ | (odf) | ||||
xdop/ | (odf) | |||||
jplodf/ | xdop/ | (odf) | ||||
isasicv/ | track/ | (icv) | ||||
jplicv/ | track/ | (icv) |
Dir | Sub/ | Sub/ | File | Ext |
ovlbi/ | in/ | SRT Schedule | srs | |
Orbit prediction | bsp | |||
ovlbi/ | out/ | Time Corrections File | kcg | |
Time Components file | tcg | |||
Data processing log | kdg | |||
Performance Log | kpg | |||
Weekly status file | stg | |||
Telemetry headers files (THF) | ktg | |||
ovlbi/ | out/ | kutlm2/ | 15-minute THFs | ktg |
Dir/Sub | Sub/ | Sub/ | Sub/ | Sub/ | Sub/ | File | Ext |
pub/RadioAstron/ | raoper/ | data/ | srt/ | dsn/ | delta_t/ | Time Corrections File | kcX |
Time Components File | tcX | ||||||
dplog/ | VLBA Data Processing Log | klX | |||||
S2 Data Processing Log | ksX | ||||||
kutlm/ | Telemetry Header File | ktX | |||||
kutlm2/ | 10-minute THFs | ktX | |||||
mondata/ | Monitor Data File | kmX | |||||
perflog/ | Station Performance Log | kpX | |||||
schedule/ | srtsched/ | SRS Files | srt | ||||
status/ | gts/ | DSN GTS Status Reports | stX | ||||
nav/ | JPL MMNAV Status Reports | TBD | |||||
oddata/ | pred/ | Predicted Orbit | bsp | ||||
rec/ | Reconstructed Orbit | bsp |
Note: `X' is the DSN GTS identifier where d = Goldstone, m = Madrid, t = Tidbinbilla.
NRAO Array Operations Center FTP Directory Structure
Most of the RadioAstron data files at the Array Operations Center (AOC) in Socorro are for internal use, rather than being served for other mission elements. The files to be used in preparation for observing by the VLBA and VLA telescopes, and the calibration files generated by these telescopes, use the same computer, directory structure, and naming convention as for ground VLBI experiments, and appear in password-protected accounts. This greatly simplifies operations at the AOC. Files that are specific to the RadioAstron mission are archived on aspen5 and can be accessed via the same password protected vlbiobs account as used for ground telescope observing files. Since the AOC is not responsible for serving most files to other mission elements, it is not guaranteed that the collections of files such as SRT schedule files will be complete or will contain the latest file version.
Most subdirectories are broken down according to month and year ("mmmyy") as is the standard practice at the AOC. Files containing data for multiple months will be placed in the subdirectory corresponding to the first data in the file.
From 1 April 1998 the VLBA FTP directory structure changed from the former structure /home/aspen2/vlbiobs/mmmyy to /home/aspen6/astronomy/mmmyy/pppppp, where `mmmyy' is a code for the month and year (UTC) of the beginning of the project and `pppppp' is the project code. This change has been been retrospectively to files from the beginning of January 1998: files before this time are in the old directory structure.
Table: AOC Directory Structure for Local Ground Telescope Files
Dir/Sub | Sub/ | Sub/ | File | Name |
/magnolia2/vlbacorr/ | vlbaclocks/ | mmmyy/ | Clock (GPS) Files | gps.XX |
Until 31Dec1997 | ||||
/aspen2/vlbiobs/ | mmmyy/ | VLBA & VLA Schedule Input | OBS.key | |
VLBA & VLA Card Files | OBScrd.XX | |||
VLBA & VLA Sched Files | OBSsched.XX | |||
VLBA Summary File | OBS.sum | |||
VLBA Calibration File | OBScal.vlba.Z | |||
VLA Calibration File | OBScal.y.Z | |||
From 1Jan1998 | ||||
/aspen6/vlbiobs/ | astronomy/ | mmmyy/pppppp/ | VLBA & VLA Schedule Input | OBS.key |
VLBA & VLA Card Files | OBScrd.XX | |||
VLBA & VLA Sched Files | OBSsched.XX | |||
VLBA Summary File | OBS.sum | |||
VLBA Calibration File | OBScal.vlba.Z | |||
VLA Calibration File | OBScal.y.Z | |||
mmmyy/pppppp/jobs | correlator job scripts | |||
mmmyy/pppppp/sniffer | quality control results |
Penticton Correlator FTP Directory Structure
The Penticton Correlator FTP site is ftp.drao.nrc.ca. The anonymous FTP main directory is /pub/RadioAstron. Operations observation/experiment status summary (postscript file) will be stored in /pub/RadioAstron/CVOC_status.ps
Table: AOC Directory Structure for RadioAstron-Specific File
Dir/Sub | Sub/ | File | Name |
/home/aspen5/pub/rsog/yymmm/ | srtsch/ | SRT Schedule File | YYMMDD.srs |
Observation Summary File | YYMMDD.osf | ||
srtlog/ | SRT log from RSOG | OBSlog.vs | |
SRT log from Tracking Station | OBSlog.klX | ||
srttcf/ | Time Correction File | YYMMDDHHMM.kcX | |
DSN Performance Summary | summary | ||
Time Component File | YYMMDDHHMM.tcX | ||
grtlog/ | GRT Log File | OBSlog.XX | |
grtcal/ | GRT Calibration File | OBScal.XX | |
odrec/ | Reconstructed Orbits | YYMMDD-YYMMDD-rs.bsp | |
odpre/ | Predicted Orbits | YYMMDD-YYMMDD-p.bsp | |
odtsv/ | Tracking Station View Periods | YYMMDD-YYMMDD-vp.ps |
University of Calgary FTP Directory Structure
Table: University of Calgary FTP Structure
Dir/Sub/ | Sub/ | Sub/ | Sub/ | Description |
pub/RadioAstron/ | Main directory | |||
OBS/ | calib/ | ASCII calibration data | ||
OBS_DQA1.txt | Level 1 DQA report | |||
OBS_DQA2.txt | Level 2 DQA report | |||
usr/home/ | RAstronobs/RAstron/ | Main directory | ||
OBS/ | OBS_DQA1.ps | Level 1 DQA report (.ps) | ||
OBS_DQA1.txt | Level 1 DQA report (text) | |||
OBS_DQA2.ps | Level 2 DQA report (.ps) | |||
OBS_DQA2.txt | Level 2 DQA report (text) |
Note: OBS is the observation code for the particular observation.
Center for Research in Earth and Space Technology (CREST)
The CREST anonymous FTP site is s2.sgl.crestech.ca. The anonymous FTP main directory is /pub/s2/. The S2 software download directory is /pub/s2/swload/. The documentation directory is /pub/s2/doc/.
Regional Servers for GRT Schedules
The regional servers for GRT schedules are shown, together with the 'two-letter' codes for the telescopes/arrays in Table below. IP addresses for these FTP sites are given in Table:Mission Element FTP Sites The sub-directory containing the logs on most servers is of the form mmmyy, where mmmyy is the month and year of the start date (UTC) of the observation, e.g. sep97.
Table: GRTs and their Regional Server for schedule files.
Element | Code | Server for schedule files |
Subdirectory |
Arecibo | AR | aspen.aoc.nrao.edu | astronomy/mmmyy/pppppp |
ATCA (Narrabri) | AT | ftp.atnf.csiro.au | /pub/people/vlbi/RadioAstron/schedules/mmmyy |
Bear Lakes | BL | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Ceduna | CD | ftp.atnf.csiro.au | /pub/people/vlbi/RadioAstron/schedules/mmmyy |
Effelsberg | EB | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Goldstone | GO | aspen.aoc.nrao.edu | astronomy/mmmyy/pppppp |
Green Bank | GB | aspen.aoc.nrao.edu | astronomy/mmmyy/pppppp |
Hartebeesthoek | HH | ftp.atnf.csiro.au | /pub/people/vlbi/RadioAstron/schedules/mmmyy |
Hobart | HO | ftp.atnf.csiro.au | /pub/people/vlbi/RadioAstron/schedules/mmmyy |
Jodrell Bank | JB | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Kyazin | KL | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Kashima | KA | hotaka.mtk.nao.ac.jp | mmmyy |
Madrid | RO | aspen.aoc.nrao.edu | astronomy/mmmyy/pppppp |
Medicina | MC | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Metsahovi | MH | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Mopra | MO | ftp.atnf.csiro.au | /pub/people/vlbi/RadioAstron/schedules/mmmyy |
Nobeyama | NO | hotaka.mtk.nao.ac.jp | mmmyy |
Noto | NT | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Onsala | ON | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Shanghai | SH | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Tidbinbilla | TI | aspen.aoc.nrao.edu | astronomy/mmmyy/pppppp |
Torun | TR | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Urumqi | UR | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Usuda | UD | hotaka.mtk.nao.ac.jp | mmmyy |
VLA-27 | Y | aspen.aoc.nrao.edu | astronomy/mmmyy/pppppp |
VLBA | VLBA | aspen.aoc.nrao.edu | astronomy/mmmyy/pppppp |
WSRT | WB | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Regional Servers for GRT logs etc
The regional servers for GRT logs are shown in Table: Regional Servers for GRT Schedules. Many are the same as the server for schedule files, but there are some differences in both the server used and/or the subdirectory used. IP addresses for these FTP sites are given in Table: Mission Element FTP Sites. The sub-directory containing the logs on most servers is of the form mmmyy, where mmmyy is the month and year of the start date (UTC) of the observation, e.g. sep97.
Table: GRTs and their Regional Server for log files, and clock data.
Element | Code | Server for schedule log files |
Subdirectory |
Arecibo | AR | ftp.naic.edu | /pub/ast/vlbi/ |
ATCA (Narrabri) | AT | ftp.atnf.csiro.au | /pub/people/vlbi/RadioAstron/logs/mmmyy |
Bear Lakes | BL | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Ceduna | CD | ftp.atnf.csiro.au | /pub/people/vlbi/RadioAstron/logs/mmmyy |
Effelsberg | EB | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Goldstone | GO | dsn.jpl.nasa.gov | /pub/vlbiscpr/mmmyy |
Green Bank | GB | aspen.aoc.nrao.edu | astronomy/mmmyy/pppppp |
Hartebeesthoek | HH | ftp.atnf.csiro.au | /pub/people/vlbi/RadioAstron/logs/mmmyy |
Hobart | HO | ftp.atnf.csiro.au | /pub/people/vlbi/RadioAstron/logs/mmmyy |
Jodrell Bank | JB | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Kashima | KA | hotaka.mtk.nao.ac.jp | vlbi_arch/mmmyy |
Kalyazin | KL | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Madrid | RO | dsn.jpl.nasa.gov | /pub/vlbiscpr/mmmyy |
Medicina | MC | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Metsahovi | MH | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Mopra | MO | ftp.atnf.csiro.au | /pub/people/vlbi/RadioAstron/logs/mmmyy |
Nobeyama | NO | hotaka.mtk.nao.ac.jp | vlbi_arch/mmmyy |
Noto | NT | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Onsala | ON | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Shanghai | SH | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Tidbinbilla | TI | dsn.jpl.nasa.gov | /pub/vlbiscpr/mmmyy |
Torun | TR | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Urumqi | UR | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Usuda | UD | hotaka.mtk.nao.ac.jp | vlbi_arch/mmmyy |
VLA-27 | Y | aspen.aoc.nrao.edu | astronomy/mmmyy/pppppp |
VLBA | VLBA | aspen.aoc.nrao.edu | astronomy/mmmyy/pppppp |
WSRT | WB | vlbeer.ira.bo.cnr.it | vlbi_arch/mmmyy |
Filename conventions are described in the earlier sections this document. Further details are available from e.g. "ISAS server operation plan". Many filenames include a version letter, designated by [.v] in the filename. There is no version number for the first version of a file (i.e. the version number is blank). The first revision takes '.a', and subsequent revisions take the corresponding letter of the alphabet.
Filenames should always be in lower case. Experiment names should not have leading zeroes suppressed or removed, e.g. experiment code v001 should not be shortened to v1.
Individual mission elements are responsible for archiving their original and processed data products. The length of time for these items to remain on-line is TBD.
Mission Element | WWW Site |
RSOG | http://www.asc.rssi.ru/radioastron/rsog/ |
Green Bank TS | http://www.gb.nrao.edu/ovlbi/ |
Penticton correlator | http://www.drao.nrc.ca/web/vlbi/spacevlbi.html |
U. of Calgary | http://www.ras.ucalgary.ca/Spacevlbi.html |
NRAO Space VLBI | http://www.nrao.edu/ julvesta/aoc_svlbi.html |
JPL/DOTS | http://sgra.jpl.nasa.gov/ |
ATNF | http://wwwatnf.atnf.csiro.au/ |
JIVE | http://www.nfra.nl/jive |