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187118 (2005 QE78)
Classification: Main-belt Asteroid          SPK-ID: 2187118
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02880996050968172 3.6441e-08  
a 2.765680981089429 1.7785e-08 au
q 2.686001821241864 1.0095e-07 au
i 3.57189434500787 5.0277e-06 deg
node 322.7303216244333 7.3128e-05 deg
peri 302.3962007951739 0.00013809 deg
M 202.7447522139685 0.00012118 deg
tp 2459934.344761022385
(2022-Dec-20.84476102)
0.00056837 TDB
period 1679.97009757995
4.60
1.6205e-05
4.437e-08
d
yr
n .2142895284377927 2.0671e-09 deg/d
Q 2.845360140936993 1.8298e-08 au
  Orbit Determination Parameters
   # obs. used (total)      377  
   data-arc span      9840 days (26.94 yr)  
   first obs. used      1994-03-07  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53223  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:05  

Additional Information
 Earth MOID = 1.67036 au 
 Jupiter MOID = 2.17381 au 
 T_jup = 3.336 
[ 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 16.1   n/a MPO454288  
diameter diameter 3.363 km 0.530 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

187118 (2005 QE78)          Discovered 2005-Aug-25 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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