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JPL Small-Body Database Browser
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85978 (1999 GD45)
Classification: Main-belt Asteroid          SPK-ID: 2085978
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1474586513417792 3.8623e-08  
a 2.780866692371569 1.6141e-08 au
q 2.370803840353183 1.0835e-07 au
i 8.019265861499736 4.7226e-06 deg
node 137.1098002343491 2.7842e-05 deg
peri 28.90704386281515 3.1286e-05 deg
M 140.5811882193358 1.5213e-05 deg
tp 2457939.055527647936
(2017-Jul-04.55552765)
6.9687e-05 TDB
period 1693.825561320669
4.64
1.4748e-05
4.038e-08
d
yr
n .2125366438084152 1.8505e-09 deg/d
Q 3.190929544389955 1.8522e-08 au
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      7502 days (20.54 yr)  
   first obs. used      1999-03-21  
   last obs. used      2019-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52989  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:16:07  

Additional Information
 Earth MOID = 1.38276 au 
 Jupiter MOID = 1.79779 au 
 T_jup = 3.303 
[ 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 14.8   n/a MPO348043  
diameter diameter 5.216 km 1.564 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85978 (1999 GD45)          Discovered 1999-Apr-12 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1999 GD45 = 2001 UZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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