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4189 Sayany (1979 SV9)
Classification: Main-belt Asteroid          SPK-ID: 2004189
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1358916746684773 2.9804e-08  
a 2.301592215095073 7.3538e-09 au
q 1.988824994581873 7.0157e-08 au
i 5.35247323740297 4.4687e-06 deg
node 194.1356194138457 3.0692e-05 deg
peri 127.1105239970839 3.5209e-05 deg
M 274.6069106717688 1.8358e-05 deg
tp 2459303.024966571973
(2021-Mar-29.52496657)
6.5334e-05 TDB
period 1275.384095161253
3.49
6.1124e-06
1.673e-08
d
yr
n .2822679076568564 1.3528e-09 deg/d
Q 2.614359435608273 8.3531e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2216  
   data-arc span      23584 days (64.57 yr)  
   first obs. used      1955-11-24  
   last obs. used      2020-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43873  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:06:28  

Additional Information
 Earth MOID = .982013 au 
 Jupiter MOID = 2.6813 au 
 T_jup = 3.573 
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Orbital Elements at Epoch 2456912.5 (2014-Sep-12.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1361737905584542 2.9764e-08  
q 1.988232164573398 7.0067e-08 au
tp 2456749.938456657258
(2014-Apr-02.43845666)
6.3443e-05 TDB
node 194.1863903438596 3.0735e-05 deg
peri 126.6332070854419 3.5203e-05 deg
i 5.347683583600708 4.4662e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2216  
   data-arc span      23584 days (64.57 yr)  
   first obs. used      1955-11-24  
   last obs. used      2020-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43873  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:06:28  

Additional Information
 Jupiter MOID = 2.6813 au 
 T_jup = 3.573 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.858919175295555E-16 -2.077152189178962E-15 7.294186017128495E-13 4.858598181951038E-15 2.048667368476867E-13 2.927671771476818E-16
q -2.077152189178962E-15 4.909383712682963E-15 -1.661776103307619E-12 -1.155088945947185E-14 -4.664229600774302E-13 -5.61419708166713E-16
tp 7.294186017128495E-13 -1.661776103307619E-12 4.025016833292977E-9 6.534340392645639E-12 1.094527442425316E-9 9.379687529147482E-13
node 4.858598181951038E-15 -1.155088945947185E-14 6.534340392645639E-12 9.446228868048985E-10 -9.382101978513151E-10 2.340430530181043E-11
peri 2.048667368476867E-13 -4.664229600774302E-13 1.094527442425316E-9 -9.382101978513151E-10 1.239220109222935E-9 -2.305036888799491E-11
i 2.927671771476818E-16 -5.61419708166713E-16 9.379687529147482E-13 2.340430530181043E-11 -2.305036888799491E-11 1.994686764413982E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5   n/a MPO358670  
diameter diameter 3.896 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.473   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4189 Sayany (1979 SV9)          Discovered 1979-Sep-22 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1979 SV9 = 1965 UR1 = 1986 TG5 = A923 RC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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