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JPL Small-Body Database Browser
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20414 (1998 RH16)
Classification: Outer Main-belt Asteroid          SPK-ID: 2020414
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1186297072705408 5.5361e-08  
a 3.20266633735443 2.8576e-08 au
q 2.822734967268858 1.7841e-07 au
i 4.556609325622351 6.0432e-06 deg
node 229.3161558257457 7.0923e-05 deg
peri 61.61162713264405 7.8236e-05 deg
M 231.0815784332104 3.8271e-05 deg
tp 2459350.184355702725
(2021-May-15.68435570)
0.00022749 TDB
period 2093.466277146122
5.73
2.8019e-05
7.671e-08
d
yr
n .1719636011957944 2.3015e-09 deg/d
Q 3.58259770744 3.1966e-08 au
  Orbit Determination Parameters
   # obs. used (total)      865  
   data-arc span      13286 days (36.38 yr)  
   first obs. used      1982-11-14  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58264  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:40:48  

Additional Information
 Earth MOID = 1.80963 au 
 Jupiter MOID = 1.58676 au 
 T_jup = 3.178 
[ show covariance matrix ]

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 13.8   n/a MPO319340  
diameter diameter 8.100 km 0.223 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.098   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20414 (1998 RH16)          Discovered 1998-Sep-09 by ODAS at Caussols
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RH16 = 1982 VY4 = 1999 VY83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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