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JPL Small-Body Database Browser
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59920 (1999 RO162)
Classification: Main-belt Asteroid          SPK-ID: 2059920
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .162943242565188 5.1288e-08  
a 2.789060777610689 1.2979e-08 au
q 2.334602170795419 1.4181e-07 au
i 9.948152021164933 4.7926e-06 deg
node 35.99103507616074 2.2203e-05 deg
peri 352.4815586547311 2.4879e-05 deg
M 143.9954267042006 1.2221e-05 deg
tp 2458319.994573647725
(2018-Jul-20.49457365)
5.6113e-05 TDB
period 1701.317598023912
4.66
1.1876e-05
3.251e-08
d
yr
n .2116007031362878 1.477e-09 deg/d
Q 3.243519384425959 1.5094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1789  
   data-arc span      10761 days (29.46 yr)  
   first obs. used      1990-11-11  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46121  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:51:06  

Additional Information
 Earth MOID = 1.34024 au 
 Jupiter MOID = 2.20329 au 
 T_jup = 3.289 
[ 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 13.6   n/a MPO493292  
diameter diameter 5.141 km 0.270 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.368980 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.168   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59920 (1999 RO162)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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