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4561 Lemeshev (1978 RY5)
Classification: Main-belt Asteroid          SPK-ID: 2004561
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1573979511225632 1.746e-08  
a 2.574298606607059 8.3089e-09 au
q 2.169109280349439 4.497e-08 au
i 9.48738425843746 1.1109e-06 deg
node 10.14290124786011 3.3621e-06 deg
peri 54.98633842127806 5.9022e-06 deg
M 43.56080064458367 4.515e-06 deg
tp 2459017.950704185702
(2020-Jun-17.45070419)
1.8637e-05 TDB
period 1508.64413694652
4.13
7.304e-06
2e-08
d
yr
n .2386248626721449 1.1553e-09 deg/d
Q 2.97948793286468 9.6167e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2275  
   data-arc span      24693 days (67.61 yr)  
   first obs. used      1953-08-14  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41861  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:43:00  

Additional Information
 Earth MOID = 1.19657 au 
 Jupiter MOID = 2.40722 au 
 T_jup = 3.391 
[ 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 13.56   n/a MPCxxxxx  
diameter diameter 10.183 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.089   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4561 Lemeshev (1978 RY5)          Discovered 1978-Sep-13 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1978 RY5 = 1970 WZ = 1980 DK5 = 1986 RH3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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