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43777 (1989 RK1)
Classification: Main-belt Asteroid          SPK-ID: 2043777
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1828025981308027 5.0365e-08  
a 2.624401318039736 9.1974e-09 au
q 2.144653938564169 1.3006e-07 au
i 12.22901603389402 4.7313e-06 deg
node 334.5932881969188 1.6857e-05 deg
peri 48.93810969391557 2.0254e-05 deg
M 101.0908197946547 9.7916e-06 deg
tp 2458764.433207533567
(2019-Oct-07.93320753)
4.203e-05 TDB
period 1552.901100285831
4.25
8.1634e-06
2.235e-08
d
yr
n .2318241644195741 1.2187e-09 deg/d
Q 3.104148697515303 1.0879e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1752  
   data-arc span      11525 days (31.55 yr)  
   first obs. used      1989-09-03  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47826  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:26:53  

Additional Information
 Earth MOID = 1.16567 au 
 Jupiter MOID = 2.45082 au 
 T_jup = 3.347 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.13   n/a MPCxxxxx  
diameter diameter 3.914 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.318   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43777 (1989 RK1)          Discovered 1989-Sep-03 by Elst, E. W. at Haute Provence
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 RK1 = 2000 EV197 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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