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(2020 DP4)
Classification: Apollo [NEO]          SPK-ID: 54006021
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2809064994943142 0.00015501  
a 1.219632928235893 0.00019422 au
q .8770301116971484 4.9395e-05 au
i 1.448416616320115 0.00067374 deg
node 2.492449290769229 0.0008858 deg
peri 243.9098113278333 0.0011679 deg
M 302.9426200304019 0.068185 deg
tp 2459474.474296136993
(2021-Sep-16.97429614)
0.11181 TDB
period 491.9739852105819
1.35
0.11751
0.0003217
d
yr
n .7317460085738222 0.00017479 deg/d
Q 1.562235744774638 0.00024877 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      23 days  
   first obs. used      2020-02-27  
   last obs. used      2020-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .39354  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:20:10  

Additional Information
 Earth MOID = .00040781 au 
 Jupiter MOID = 3.45842 au 
 T_jup = 5.195 
[ 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 25.2   .4275 E2020G29 autocmod 2.8
rotation period rot_per 0.30304 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2020) http://www.asu.cas.cz/~ppravec/neo.htm]

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