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344720 (2003 UJ76)
Classification: Main-belt Asteroid          SPK-ID: 2344720
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .191504431521662 5.4162e-08  
a 2.672263990374295 3.2128e-08 au
q 2.160513594021857 1.4997e-07 au
i 12.28141260083609 4.2878e-06 deg
node 252.3865803446587 3.0827e-05 deg
peri 32.44239591799722 4.1562e-05 deg
M 4.498226747190512 2.1667e-05 deg
tp 2458980.563160670719
(2020-May-11.06316067)
9.6277e-05 TDB
period 1595.575892883546
4.37
2.8775e-05
7.878e-08
d
yr
n .225623865091997 4.069e-09 deg/d
Q 3.184014386726732 3.8281e-08 au
  Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      6219 days (17.03 yr)  
   first obs. used      2003-10-02  
   last obs. used      2020-10-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56939  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 17:01:55  

Additional Information
 Earth MOID = 1.15455 au 
 Jupiter MOID = 1.98091 au 
 T_jup = 3.322 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458345.5 (2018-Aug-15.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1909649149306954 5.4217e-08  
q 2.160932233958902 1.4993e-07 au
tp 2458981.064251017344
(2020-May-11.56425102)
9.6529e-05 TDB
node 252.3890818947081 3.0817e-05 deg
peri 32.56361508348535 4.1611e-05 deg
i 12.28439190123921 4.2878e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      6219 days (17.03 yr)  
   first obs. used      2003-10-02  
   last obs. used      2020-10-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56939  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 17:01:55  

Additional Information
 Jupiter MOID = 1.98091 au 
 T_jup = 3.322 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.939473382819079E-15 -8.006347646824631E-15 1.787147081748787E-12 4.949136657154716E-14 3.592596451130437E-13 -2.197588511566855E-14
q -8.006347646824631E-15 2.248001827669799E-14 -6.521480858591468E-12 -1.393739993046986E-13 -1.513442252901299E-12 6.781552375695673E-14
tp 1.787147081748787E-12 -6.521480858591468E-12 9.31790465805029E-9 6.187994942835536E-11 2.73203549700873E-9 -4.298921399821625E-11
node 4.949136657154716E-14 -1.393739993046986E-13 6.187994942835536E-11 9.4966785663368E-10 -9.115242142084958E-10 5.046262507602401E-11
peri 3.592596451130437E-13 -1.513442252901299E-12 2.73203549700873E-9 -9.115242142084958E-10 1.731436542088325E-9 -6.176358300948958E-11
i -2.197588511566855E-14 6.781552375695673E-14 -4.298921399821625E-11 5.046262507602401E-11 -6.176358300948958E-11 1.838506901524842E-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 16.3   n/a MPO434169  
diameter diameter 3.480 km 0.218 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

344720 (2003 UJ76)          Discovered 2003-Oct-17 by LONEOS at Anderson Mesa
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

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Alternate Designations
 2003 UJ76 = 2008 YY111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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