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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1351240259352712 3.8642e-08  
a 2.331645637282468 8.8825e-09 au
q 2.01658429171845 9.003e-08 au
i 5.730624390030312 5.191e-06 deg
node 195.7970380108118 3.9106e-05 deg
peri 128.7240885664638 4.3333e-05 deg
M 318.6422743687459 2.0345e-05 deg
tp 2459149.898554198459
(2020-Oct-27.39855420)
7.3898e-05 TDB
period 1300.445773807274
3.56
7.4312e-06
2.035e-08
d
yr
n .2768281517391067 1.5819e-09 deg/d
Q 2.646706982846486 1.0083e-08 au
  Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      10721 days (29.35 yr)  
   first obs. used      1991-04-13  
   last obs. used      2020-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:45:03  

Additional Information
 Earth MOID = 1.01088 au 
 Jupiter MOID = 2.66812 au 
 T_jup = 3.552 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456829.5 (2014-Jun-21.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1346830737304931 3.8537e-08  
q 2.016872738751308 8.9629e-08 au
tp 2456548.050428741504
(2013-Sep-12.55042874)
6.8122e-05 TDB
node 195.9039981178356 3.9172e-05 deg
peri 128.2358145016268 4.3398e-05 deg
i 5.725128271005064 5.1879e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      10721 days (29.35 yr)  
   first obs. used      1991-04-13  
   last obs. used      2020-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:45:03  

Additional Information
 Jupiter MOID = 2.66812 au 
 T_jup = 3.552 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.485136201150474E-15 -3.44110408271964E-15 6.618439179581329E-13 3.517832969080464E-15 1.927545398458844E-13 -9.002541004293342E-16
q -3.44110408271964E-15 8.033335260597474E-15 -1.375790050238393E-12 -7.755575812708888E-15 -4.035197052071467E-13 2.219959859619398E-15
tp 6.618439179581329E-13 -1.375790050238393E-12 4.640632840262169E-9 1.228269134637784E-11 1.28347251710446E-9 3.224789285107958E-13
node 3.517832969080464E-15 -7.755575812708888E-15 1.228269134637784E-11 1.534431365787619E-9 -1.522776706629283E-9 1.078969920919908E-11
peri 1.927545398458844E-13 -4.035197052071467E-13 1.28347251710446E-9 -1.522776706629283E-9 1.883371483379287E-9 -1.067799743673375E-11
i -9.002541004293342E-16 2.219959859619398E-15 3.224789285107958E-13 1.078969920919908E-11 -1.067799743673375E-11 2.691407899131677E-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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