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(2020 DM4)
Classification: Amor [NEO, PHA]          SPK-ID: 54006017
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 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4561214478749236 4.4674e-06  
a 1.887141921395878 1.5801e-05 au
q 1.026376015863325 1.6551e-07 au
i 4.120020133497463 3.0565e-05 deg
node 6.893148240929659 3.3726e-05 deg
peri 222.4671540273145 5.0201e-05 deg
M 84.45083006176687 0.0010635 deg
tp 2458978.370268289319
(2020-May-08.87026829)
1.4394e-05 TDB
period 946.9025154324449
2.59
0.011893
3.256e-05
d
yr
n .3801869718717455 4.775e-06 deg/d
Q 2.747907826928431 2.3008e-05 au
  Orbit Determination Parameters
   # obs. used (total)      351  
   data-arc span      179 days  
   first obs. used      2020-02-26  
   last obs. used      2020-08-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .41957  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:20:09  

Additional Information
 Earth MOID = .0451744 au 
 Jupiter MOID = 2.25857 au 
 T_jup = 3.826 
[ 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 21.7   .34865 E2020-QJ3 autocmod 2.8
rotation period rot_per 6.6655 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 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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