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JPL Small-Body Database Browser
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59816 (1999 RO20)
Classification: Main-belt Asteroid          SPK-ID: 2059816
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1351240220964601 4.0073e-08  
a 2.33164563606176 9.5873e-09 au
q 2.016584299613436 9.2591e-08 au
i 5.730624554624462 5.4147e-06 deg
node 195.7970388485222 3.9154e-05 deg
peri 128.7240854282711 4.4023e-05 deg
M 318.6422774206751 2.2521e-05 deg
tp 2459149.898543056500
(2020-Oct-27.39854306)
8.1868e-05 TDB
period 1300.445772786022
3.56
8.0208e-06
2.196e-08
d
yr
n .2768281519565023 1.7074e-09 deg/d
Q 2.646706972510084 1.0883e-08 au
  Orbit Determination Parameters
   # obs. used (total)      833  
   data-arc span      10295 days (28.19 yr)  
   first obs. used      1991-04-13  
   last obs. used      2019-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52382  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:55:01  

Additional Information
 Earth MOID = 1.01088 au 
 Jupiter MOID = 2.66812 au 
 T_jup = 3.552 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456775.5 (2014-Apr-28.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1346958719509792 3.9923e-08  
q 2.01677659536842 9.2092e-08 au
tp 2456548.013047260618
(2013-Sep-12.51304726)
7.4074e-05 TDB
node 195.9047786675864 3.922e-05 deg
peri 128.2190544377513 4.4088e-05 deg
i 5.72523861401868 5.4115e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      833  
   data-arc span      10295 days (28.19 yr)  
   first obs. used      1991-04-13  
   last obs. used      2019-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52382  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:55:01  

Additional Information
 Jupiter MOID = 2.66812 au 
 T_jup = 3.552 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.593813326242928E-15 -3.661528792500754E-15 9.640810979638449E-13 3.5190612833006E-15 2.707634843295074E-13 -6.957691909421537E-16
q -3.661528792500754E-15 8.480880150652232E-15 -1.987020343032723E-12 -7.854898211923599E-15 -5.612406825645895E-13 1.691436086805504E-15
tp 9.640810979638449E-13 -1.987020343032723E-12 5.486991824744515E-9 1.216001509458554E-11 1.502411126501557E-9 -5.812457078850936E-13
node 3.5190612833006E-15 -7.854898211923599E-15 1.216001509458554E-11 1.538172370894818E-9 -1.526525896997998E-9 1.078450402061002E-11
peri 2.707634843295074E-13 -5.612406825645895E-13 1.502411126501557E-9 -1.526525896997998E-9 1.943710384643424E-9 -1.091969430661379E-11
i -6.957691909421537E-16 1.691436086805504E-15 -5.812457078850936E-13 1.078450402061002E-11 -1.091969430661379E-11 2.928455403683398E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO381686  

59816 (1999 RO20)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RO20 = 1998 FB142 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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