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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1191757131862537 4.1699e-08  
a 3.202817210192813 2.2629e-08 au
q 2.821119184962877 1.4659e-07 au
i 4.556228666712389 5.951e-06 deg
node 229.3096067301625 5.1205e-05 deg
peri 61.68435930948052 5.7968e-05 deg
M 334.2515611982982 2.7976e-05 deg
tp 2459350.242492596915
(2021-May-15.74249260)
0.00016293 TDB
period 2093.614209003096
5.73
2.2189e-05
6.075e-08
d
yr
n .1719514504878237 1.8224e-09 deg/d
Q 3.584515235422748 2.5326e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1091  
   data-arc span      13761 days (37.68 yr)  
   first obs. used      1982-11-14  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55906  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:19:53  

Additional Information
 Earth MOID = 1.80675 au 
 Jupiter MOID = 1.5857 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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