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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1911267498614197 5.7732e-08  
a 2.670699640723027 4.0124e-08 au
q 2.160257498535573 1.6628e-07 au
i 12.28436656110886 8.8442e-06 deg
node 252.389874179496 5.283e-05 deg
peri 32.58409140989827 6.3902e-05 deg
M 274.0697422658528 3.6078e-05 deg
tp 2458981.021861370737
(2020-May-11.52186137)
0.00016069 TDB
period 1594.175017108423
4.36
3.5926e-05
9.836e-08
d
yr
n .2258221312820358 5.0891e-09 deg/d
Q 3.181141782910481 4.7793e-08 au
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      5690 days (15.58 yr)  
   first obs. used      2003-10-02  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67061  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:47:18  

Additional Information
 Earth MOID = 1.15383 au 
 Jupiter MOID = 1.98315 au 
 T_jup = 3.323 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457161.5 (2015-May-19.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1901726777619955 5.7743e-08  
q 2.163387373413701 1.6624e-07 au
tp 2457386.135556047220
(2015-Dec-29.63555605)
0.00016086 TDB
node 252.399115950767 5.2836e-05 deg
peri 32.56122395455143 6.4006e-05 deg
i 12.28148126135474 8.8436e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      5690 days (15.58 yr)  
   first obs. used      2003-10-02  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67061  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:47:18  

Additional Information
 Jupiter MOID = 1.98315 au 
 T_jup = 3.323 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.334260362343607E-15 -9.428421802093114E-15 1.263687942281848E-13 -2.312664259215156E-14 6.231386339640512E-14 -1.091229333625938E-15
q -9.428421802093114E-15 2.763567649628008E-14 -8.0861181847522E-13 4.423991313383719E-14 -2.98225458656547E-13 1.073674479313078E-14
tp 1.263687942281848E-13 -8.0861181847522E-13 2.587569950948021E-8 -1.817262154611363E-10 6.011181139853673E-9 8.300428151924044E-12
node -2.312664259215156E-14 4.423991313383719E-14 -1.817262154611363E-10 2.79160532878916E-9 -2.768735624905311E-9 -2.579760315784511E-10
peri 6.231386339640512E-14 -2.98225458656547E-13 6.011181139853673E-9 -2.768735624905311E-9 4.096828216436999E-9 2.53915084120222E-10
i -1.091229333625938E-15 1.073674479313078E-14 8.300428151924044E-12 -2.579760315784511E-10 2.53915084120222E-10 7.820944816547091E-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

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