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65899 (1998 DG12)
Classification: Main-belt Asteroid          SPK-ID: 2065899
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2071853866513498 3.8445e-08  
a 2.384429080150372 9.553e-09 au
q 1.890410219236695 8.9604e-08 au
i 7.554661145135759 4.0688e-06 deg
node 149.1171859680218 3.0485e-05 deg
peri 192.6841755244432 3.2069e-05 deg
M 214.8445556112682 1.1748e-05 deg
tp 2459542.757878296855
(2021-Nov-24.25787830)
4.5924e-05 TDB
period 1344.853698109184
3.68
8.0821e-06
2.213e-08
d
yr
n .2676871101340965 1.6087e-09 deg/d
Q 2.878447941064048 1.1532e-08 au
  Orbit Determination Parameters
   # obs. used (total)      713  
   data-arc span      8015 days (21.94 yr)  
   first obs. used      1998-02-23  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58475  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:47:58  

Additional Information
 Earth MOID = .882712 au 
 Jupiter MOID = 2.52395 au 
 T_jup = 3.495 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO412594  
diameter diameter 1.615 km 0.404 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.224   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65899 (1998 DG12)          Discovered 1998-Feb-23 by Spacewatch at Kitt Peak
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 DG12 = 1999 NJ49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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