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JPL Small-Body Database Browser
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27890 (1996 GG18)
Classification: Main-belt Asteroid          SPK-ID: 2027890
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01174511597800696 4.3608e-08  
a 2.763570126294381 1.4991e-08 au
q 2.731111674647698 1.1881e-07 au
i 4.59767387509993 5.4357e-06 deg
node 213.4885446506285 4.8795e-05 deg
peri 306.4483466596178 0.00021935 deg
M 143.2995748198351 0.00021237 deg
tp 2458332.545989133843
(2018-Aug-02.04598913)
0.00099126 TDB
period 1678.047155507208
4.59
1.3654e-05
3.738e-08
d
yr
n .2145350914713633 1.7456e-09 deg/d
Q 2.796028577941064 1.5167e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1370  
   data-arc span      8554 days (23.42 yr)  
   first obs. used      1996-03-17  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5339  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:12:11  

Additional Information
 Earth MOID = 1.73671 au 
 Jupiter MOID = 2.17223 au 
 T_jup = 3.336 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456534.5 (2013-Aug-30.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01135515743039124 4.078e-08  
q 2.730480934242578 1.0958e-07 au
tp 2456598.993846318368
(2013-Nov-02.49384632)
0.0010941 TDB
node 213.6157051926826 4.8704e-05 deg
peri 294.0515814290468 0.00024053 deg
i 4.602317558782768 5.4418e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1370  
   data-arc span      8554 days (23.42 yr)  
   first obs. used      1996-03-17  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5339  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:12:11  

Additional Information
 Jupiter MOID = 2.17223 au 
 T_jup = 3.336 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.663007898445408E-15 -4.433506615660114E-15 1.1621305716843E-11 4.500121648710151E-15 2.482018513973602E-12 -3.224893484056751E-16
q -4.433506615660114E-15 1.200702913584665E-14 -3.419141543917871E-11 -1.455319619828527E-14 -7.309457167696352E-12 1.049038082389798E-15
tp 1.1621305716843E-11 -3.419141543917871E-11 1.197156731882299E-6 1.534740314136851E-10 2.577330480461848E-7 1.309542870089758E-11
node 4.500121648710151E-15 -1.455319619828527E-14 1.534740314136851E-10 2.372093862975531E-9 -2.331115285507947E-9 -2.352661925382925E-11
peri 2.482018513973602E-12 -7.309457167696352E-12 2.577330480461848E-7 -2.331115285507947E-9 5.785364293408999E-8 2.631041427967648E-11
i -3.224893484056751E-16 1.049038082389798E-15 1.309542870089758E-11 -2.352661925382925E-11 2.631041427967648E-11 2.96127730434515E-11

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 14.0   n/a MPO302229  
diameter diameter 8.111 km 0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27890 (1996 GG18)          Discovered 1996-Apr-15 by Elst, E. W. at La Silla
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 GG18 = 1998 VU39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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