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(2021 DP)
Classification: Apollo [NEO]          SPK-ID: 54123260
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5036094864193499 0.00020148  
a 1.938480954899625 0.0007749 au
q .962243556768934 5.9316e-06 au
i 4.078636404084024 0.0013401 deg
node 332.7869211231661 1.5155e-05 deg
peri 151.3554665047291 0.00018341 deg
M 344.2599259404002 0.0088631 deg
tp 2459243.601760101002
(2021-Jan-29.10176010)		 0.001577 TDB
period 985.8043601070004
2.70		 0.59111
0.001618		 d
yr
n .3651840208547314 0.00021897 deg/d
Q 2.914718353030316 0.0011651 au
   Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      7 days  
   first obs. used      2021-02-18  
   last obs. used      2021-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .40623  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-25 05:21:14  

Additional Information
 Earth MOID = .00623804 au 
 Jupiter MOID = 2.17971 au 
 T_jup = 3.736 
[ 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 26.60   .33026 E2021D77 autocmod 2.8

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