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78759 (2002 UB2)
Classification: Main-belt Asteroid          SPK-ID: 2078759
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1050979178887629 4.1588e-08  
a 3.070378665302063 2.0897e-08 au
q 2.747688260448737 1.292e-07 au
i 11.2435488752448 4.1058e-06 deg
node 89.5499059002958 2.6783e-05 deg
peri 320.5761851397211 3.6658e-05 deg
M 108.6379565867673 2.4582e-05 deg
tp 2458607.485348091510
(2019-May-03.98534809)
0.00013366 TDB
period 1965.107605062042
5.38
2.0062e-05
5.493e-08
d
yr
n .1831960748982162 1.8703e-09 deg/d
Q 3.393069070155388 2.3094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1173  
   data-arc span      8402 days (23.00 yr)  
   first obs. used      1998-01-22  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49991  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:16:30  

Additional Information
 Earth MOID = 1.76916 au 
 Jupiter MOID = 1.94744 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457160.5 (2015-May-18.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028127672513994 4.1189e-08  
q 2.758273362232669 1.2774e-07 au
tp 2456646.621883970756
(2013-Dec-20.12188397)
0.00013808 TDB
node 89.66009031304613 2.6768e-05 deg
peri 321.4918382805022 3.7105e-05 deg
i 11.24170610632935 4.1061e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1173  
   data-arc span      8402 days (23.00 yr)  
   first obs. used      1998-01-22  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49991  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:16:30  

Additional Information
 Jupiter MOID = 1.94744 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.696541437416967E-15 -5.20361685817059E-15 -1.393122477613394E-12 1.787512374368035E-15 -3.300088208918991E-13 2.735630771082477E-17
q -5.20361685817059E-15 1.631667863264093E-14 3.934963409518905E-12 -3.313449243828348E-15 9.619282667018765E-13 2.744760596625912E-16
tp -1.393122477613394E-12 3.934963409518905E-12 1.906556456904902E-8 2.664589499026227E-11 3.585716501108005E-9 -5.936553275791277E-12
node 1.787512374368035E-15 -3.313449243828348E-15 2.664589499026227E-11 7.165346268952557E-10 -6.974740135929466E-10 1.587096828613869E-11
peri -3.300088208918991E-13 9.619282667018765E-13 3.585716501108005E-9 -6.974740135929466E-10 1.376780932995937E-9 -1.661533248218117E-11
i 2.735630771082477E-17 2.744760596625912E-16 -5.936553275791277E-12 1.587096828613869E-11 -1.661533248218117E-11 1.686030411079202E-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 14.17   n/a E2021B10  
diameter diameter 4.924 km 0.391 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.152   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78759 (2002 UB2)          Discovered 2002-Oct-25 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2002 UB2 = 2001 OL66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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