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(2021 HO2)
Classification: Aten [NEO]          SPK-ID: 54139318
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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1045827788638277 8.7885e-05  
a .9522808914972639 7.3433e-06 au
q .8526887096055569 8.5769e-05 au
i 11.65007240316669 0.013235 deg
node 207.9051566011797 0.00019969 deg
peri 137.3090996239284 0.024675 deg
M 309.7062896489905 0.035939 deg
tp 2459443.919525854133
(2021-Aug-17.41952585)
0.033963 TDB
period 339.4267233088594
0.93
0.0039261
1.075e-05
d
yr
n 1.06061183542234 1.2268e-05 deg/d
Q 1.051873073388971 8.1113e-06 au
  Orbit Determination Parameters
   # obs. used (total)      23  
   data-arc span      2 days  
   first obs. used      2021-04-20  
   last obs. used      2021-04-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .35808  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-21 23:57:59  

Additional Information
 Earth MOID = .0151278 au 
 Jupiter MOID = 4.08406 au 
 T_jup = 6.297 
[ show covariance matrix ]

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 27.9   .39916 MPO622792 autocmod 2.9c

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