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JPL Small-Body Database Browser
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65898 (1998 DG9)
Classification: Main-belt Asteroid          SPK-ID: 2065898
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .106718099743875 3.8797e-08  
a 2.711461615507595 1.4744e-08 au
q 2.422099584372166 1.0845e-07 au
i 14.2771544125249 4.2716e-06 deg
node 143.9110007496636 1.5828e-05 deg
peri 27.4900008768548 2.4603e-05 deg
M 352.6926516852017 1.8239e-05 deg
tp 2459033.602510069795
(2020-Jul-03.10251007)
8.2641e-05 TDB
period 1630.810946974141
4.46
1.3302e-05
3.642e-08
d
yr
n .2207490700672297 1.8006e-09 deg/d
Q 3.000823646643023 1.6318e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1042  
   data-arc span      8964 days (24.54 yr)  
   first obs. used      1995-07-22  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5519  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:47:58  

Additional Information
 Earth MOID = 1.43805 au 
 Jupiter MOID = 2.00013 au 
 T_jup = 3.310 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO422121  

65898 (1998 DG9)          Discovered 1998-Feb-22 by NEAT at Haleakala
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 DG9 = 1995 OT5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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