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185484 (2007 DB85)
Classification: Outer Main-belt Asteroid          SPK-ID: 2185484
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03352372833593914 6.2254e-08  
a 3.473179464646562 4.9523e-08 au
q 3.356745539811788 2.3189e-07 au
i 11.03525614692853 6.1926e-06 deg
node 83.75975570562363 3.133e-05 deg
peri 173.0750385908132 0.0001029 deg
M 278.9676566723519 0.00010153 deg
tp 2459732.663594702699
(2022-Jun-02.16359470)		 0.00067082 TDB
period 2364.227495166183
6.47		 5.0566e-05
1.384e-07		 d
yr
n .1522696105751428 3.2567e-09 deg/d
Q 3.589613389481336 5.1183e-08 au
   Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      8162 days (22.35 yr)  
   first obs. used      1998-09-19  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59642  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 22:25:52  

Additional Information
 Earth MOID = 2.33999 au 
 Jupiter MOID = 1.4682 au 
 T_jup = 3.101 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457625.5 (2016-Aug-25.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03331000105511411 6.2946e-08  
q 3.357115062493928 2.343e-07 au
tp 2457351.618869394949
(2015-Nov-25.11886939)		 0.00064904 TDB
node 83.78690269589194 3.1329e-05 deg
peri 170.6786275005876 0.00010223 deg
i 11.03578391469974 6.1929e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      8162 days (22.35 yr)  
   first obs. used      1998-09-19  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59642  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 22:25:52  

Additional Information
 Jupiter MOID = 1.4682 au 
 T_jup = 3.101 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.962220767040809E-15 -1.445902469394037E-14 -1.251001799441395E-11 -6.185217220384271E-15 -1.777325805237155E-12 -1.029619325518786E-16
q -1.445902469394037E-14 5.489568739772557E-14 5.225992165436028E-11 2.270616819075869E-14 7.509030352754511E-12 -4.48321211463925E-16
tp -1.251001799441395E-11 5.225992165436028E-11 4.212488229931423E-7 -6.126891609980392E-11 6.321003300515488E-8 -2.627318670059454E-12
node -6.185217220384271E-15 2.270616819075869E-14 -6.126891609980392E-11 9.815076257331466E-10 -9.724095993419454E-10 -2.617643896759362E-11
peri -1.777325805237155E-12 7.509030352754511E-12 6.321003300515488E-8 -9.724095993419454E-10 1.045141100172154E-8 2.520185948116665E-11
i -1.029619325518786E-16 -4.48321211463925E-16 -2.627318670059454E-12 -2.617643896759362E-11 2.520185948116665E-11 3.835154132929669E-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 14.89   n/a E2021B55  
diameter diameter 5.910 km 1.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

185484 (2007 DB85)          Discovered 2007-Feb-22 by Charleston at Charleston
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

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