Download The Russian KVAZAR Network

NRAO
27-28 January 2011
«Quasar» VLBI-Network Present and Future:
2010-2015
Andrey Finkelstein
Institute of Applied Astronomy
Russian Academy of Sciences
NRAO
27-28 January 2011
«Quasar» VLBI-Network - 2010
St. Petersburg
Svetloe (Sv)
Zelenchukskaya (Zc)
Badary (Bd)
Ussurijsk
NRAO
27-28 January 2011
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Observatory «Svetloe» (Sv)
Observatory «Badary» (Bd)
http://195.131.14.60
http://90.188.52.253
Observatory «Zelenchukskaya» (Zc)
http://83.239.123.252
Login: guest, Password: guest
NRAO
27-28 January 2011
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Low Noise Receivers
with Dual Polarization Channels
G -, C - and Kq band receivers
L - band receiver
S/X - band receivers
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27-28 January 2011
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Receivers and Antenna Parameters
of the VLBI-Network «Quasar»
Wavelength,
cm
Frequency
Range,
GHz
Receiver
Temp.,
K
System
Temp.,
K
SEFD,
Jy
Efficiency
21/18
1.38-1.72
8
43
240
0.62
13
2.15-2.50
10
48
330
0.50
6
4.60-5.10
8
27
140
0.65
3.5
8.18-9.08
11
34
200
0.59
1.3
22.02-22.52
20
80
710
0.40
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27-28 January 2011
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H-maser
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27-28 January 2011
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VLBI Data Acquisition System and
Recording Terminals in «Svetloe» Observatory
I - Mark 5B Recording Terminal Rack, II – Mark IV DAS,
III – Time-Frequency Output Units Rack,
IV – Four Channel Radiometer Output Units Rack
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27-28 January 2011
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Central Control Room of «Svetloe» Observatory
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27-28 January 2011
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Correlator Center of RAS
(IAA, Sankt-Petersburg)
Computer on the basis of
workstation Sun Fire X4600
6-sites correlator
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27-28 January 2011
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Integration of «Quasar» VLBI-Network with
Radio Telescope RT-70 (Ussurijsk, Far East)
S/X - receiver
R1002 Data
Acquisition System
Recording terminal
Mark5B
H-maser
GPS/GLONASS
receiver
RT-70
Main computer
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27-28 January 2011
Phase Calibration
System (P-cal)
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Main International Programs with IVS
IVS-R1, IVS-R4 – sessions carried out twice per week on
Monday and Thursday for obtaining EOP;
IVS-T2 - sessions carried out once per two or three months
for monitoring stations coordinates of the global VLBINetwork;
IVS-Intensive - sessions carried out twice per month for
obtaining the Universal Time;
EURO – sessions organized not rare than once per year; the
purpose of this experiment is to determine station
coordinates and their evolution in the European geodetic
VLBI Network;
VLBI-RDV – few sessions during a year for the aim of
geodetic source mapping in collaboration with VLBANetwork;
CONT – one session every four years for interdaily EOP
effects determination
http://www.ipa.nw.ru/PAGE/rusipa.htm
NRAO
27-28 January 2011
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Contribution of «Quasar» VLBI-Network
in IVS Programs
2008-2009
50 session per year
50 intensive session per year
less then 10 session per year
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27-28 January 2011
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Main Domestic Space Geodesy Programs
RU-E – 24-hour sessions carried out once per 2 weeks for
determining all EOPs (Universal Time, pole coordinates,
Celestial pole coordinates) using three observatories of the
VLBI-Network «Quasar»
RU-U – 1-hour sessions once per 1 week for determining
Universal Time using «Badary» – «Svetloe» or «Badary» «Zelenchukskaya» baselines
http://www.ipa.nw.ru/PAGE/rusipa.htm
NRAO
27-28 January 2011
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EOP Differences of IAA (RU-E) and IERS 05 C04
60 sessions
xp
yp
UT1-UTC
xc
yc
Red ― S2 recording system, green ― Mark 5B recording system
rms: Xp, Yp – 1.1 mas, UT1-UTC – 45 μs, Xc, Yc – 0.6 mas
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27-28 January 2011
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Baseline Length Time Series and Velocities
«Badary»–«Svetloe», L ― 4281660.537 m (94 sessions)
m
Badary-Svetloe, B-4281660.537 , m
0.06
0.04
0.02
0
-0.02
-0.04
-0.06
L = 4281660.537 ± 0.001 m (2007.98)
V = 0.005 ± 0.001 m/year
2007
2008
2009
time, year
2010
2011
«Svetloe»–«Zelenchukskaya», L ― 2014661.045 m (120 sessions)
m
Svetloe-Zelenchukskaya, B - 2014661.045, m
0.06
0.04
0.02
0
-0.02
-0.04
-0.06
L = 2014661.045 ± 0.002 m (2007.98)
V = 0.002 ± 0.001 m/year
2006
2007
2008
2009
time, year
2010
2011
m
«Badary»–«Zelenchukskaya»,
L ― 4404836.203 (95 sessions)
Badary-Zelenchukskaya, B - 4404836.203, m
0.06
0.04
0.02
0
-0.02
-0.04
-0.06
L = 4404836.203 ± 0.002 m (2007.73)
V = 0.004 ± 0.001 m/year
2007
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27-28 January 2011
2008
2009
time, year
2010
2011
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Optical Fiber Lines of «Quasar» VLBI-Network
for e-VLBI Mode - 2011
32 km
100 Мbs
5kм
“Svetloe”
Network channel
equipment
1 Gbs
1 Gbs
Маrk 5B Terminals
Sankt-Petersburg, IAA
Correlator Center
Маrk 5B
Backbone
10 Gbs
8 km
Маrk 5B
100 Мbs
19 км
Маrk 5B
“Zelenchukskaya”
NRAO
27-28 January 2011
Network channel
equipment
1 Gbs
100 Мbs
Network channel
equipment
1 Gbs
“Badary”
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UT1-UTC Differences of IAA (RU-U) and IERS 05 C04
66 Sessions of e-VLBI Mode (Mark 5B, 1 hour)
UT1-UTC
rms (UT1-UTC) = 60 μs
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27-28 January 2011
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Satellite Laser Ranging System «Sazhen’-TM»
of «Quasar» VLBI-Netrwork: 2011
Satellites orbits –
Normal points accuracy –
Angular measurements accuracy –
Mirror diameter –
Frequency –
Pulses energy –
Mass –
NRAO
27-28 January 2011
400 – 23 000 km
1 cm
1-2”
25 cm
300 Hz
2.5 mJ
120 kg
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Main Domestic Astrophysical Programs (single dishes)
Multifrequency monitoring of close double systems;
Observation
of
micro
quasars
extragalactic radio sources;
and
variable
Research of flux variability of geodetic radio sources;
Research
of
inter-diurnal
extragalactic radio sources;
Multifrequency monitoring
including γ-bursts;
flux
of
variations
relativistic
of
objects
Calibration of radio sources for radio astronomy flux
scale.
http://www.ipa.nw.ru/PAGE/rusipa.htm
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European VLBI-Network
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Main Astrophysical Programs (VLBI)
Mapping of extragalactic and galactic radio sources
(«Quasar»+EVN)
Mapping of geodetic radio sources
(«Quasar» +EVN)
Ground-based Support of RADIOASTRON Mission
(«Quasar»+others radio telescopes )
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27-28 January 2011
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«Quasar» VLBI Network Development:
2013-2015
Equipment of Ussurijsk 70-meter radio telescope with
L-, C-, G-, Kq-band recievers
2011
Installation of 2 new 12-meter diameter
radio telescopes at «Zelenchukskaya» and
«Badary» observatories
2013-2014
Installation of 3 absolute gravimeters
at «Quasar» observatories
2014-2015
Equipment of «Quasar» VLBI-Network with
transportable collocated station (VLBI, SLR, GNSS, AG)
NRAO
27-28 January 2011
2015
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«Quasar» VLBI-Network - 2015
St. Petersburg
Svetloe
Transportable
colocated station
Zelenchukskaya
Badary
NRAO
27-28 January 2011
Ussurijsk
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Thank You for Your Attention
NRAO
27-28 January 2011