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(2017 RJ16)
Classification: Mars-crossing Asteroid          SPK-ID: 3781590
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5427624539044762 4.8589e-06  
a 3.104151824729364 3.6939e-05 au
q 1.419334763047197 1.897e-06 au
i 22.1452902255841 8.3746e-05 deg
node 41.37923148542681 4.9331e-05 deg
peri .8271865788020691 9.2072e-05 deg
M 237.0786668136591 0.0042462 deg
tp 2460078.583619358682
(2023-May-14.08361936)
0.035737 TDB
period 1997.619913517269
5.47
0.035658
9.763e-05
d
yr
n .1802144630036939 3.2168e-06 deg/d
Q 4.788968886411531 5.6989e-05 au
  Orbit Determination Parameters
   # obs. used (total)      47  
   data-arc span      123 days  
   first obs. used      2017-09-13  
   last obs. used      2018-01-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .44756  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 19:28:28  

Additional Information
 Earth MOID = .427507 au 
 Jupiter MOID = .650055 au 
 T_jup = 2.878 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458060.5 (2017-Nov-03.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5427094277678574 4.8144e-06  
q 1.42049183147918 2.1302e-06 au
tp 2458081.526323190469
(2017-Nov-24.02632319)
0.00014312 TDB
node 41.37848711075742 4.8889e-05 deg
peri .9022898275236602 9.2044e-05 deg
i 22.13778852906012 8.2406e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      47  
   data-arc span      123 days  
   first obs. used      2017-09-13  
   last obs. used      2018-01-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .44756  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 19:28:28  

Additional Information
 Jupiter MOID = .650055 au 
 T_jup = 2.878 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.317861689253591E-11 9.789741936994561E-12 2.601133497248116E-11 -1.760104664815395E-10 -3.586173945029666E-11 3.830464830239861E-10
q 9.789741936994561E-12 4.537688796314433E-12 -5.182591549723421E-11 -8.737994137620553E-11 -5.620710715234409E-11 1.706349007171728E-10
tp 2.601133497248116E-11 -5.182591549723421E-11 2.048193159412146E-8 2.361937315037307E-9 1.263190930986993E-8 -3.795400538109706E-10
node -1.760104664815395E-10 -8.737994137620553E-11 2.361937315037307E-9 2.390133167466694E-9 1.361032803975167E-9 -3.377378521593972E-9
peri -3.586173945029666E-11 -5.620710715234409E-11 1.263190930986993E-8 1.361032803975167E-9 8.472158596101505E-9 -9.716963932484455E-10
i 3.830464830239861E-10 1.706349007171728E-10 -3.795400538109706E-10 -3.377378521593972E-9 -9.716963932484455E-10 6.790706683482838E-9

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.7   n/a MPO435136  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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