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JPL Small-Body Database Browser
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49271 (1998 UG15)
Classification: Main-belt Asteroid          SPK-ID: 2049271
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05503810237776678 3.4164e-08  
a 2.332420154005547 9.2437e-09 au
q 2.204048174781424 7.7245e-08 au
i 7.511734217031752 3.9984e-06 deg
node 113.9576034224872 2.7623e-05 deg
peri 103.7682426599032 4.6804e-05 deg
M 170.5909308095164 3.7192e-05 deg
tp 2458383.958885538438
(2018-Sep-22.45888554)
0.00013444 TDB
period 1301.093792928531
3.56
7.7347e-06
2.118e-08
d
yr
n .2766902754871376 1.6449e-09 deg/d
Q 2.460792133229671 9.7525e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      7709 days (21.11 yr)  
   first obs. used      1998-09-24  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50092  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:41:08  

Additional Information
 Earth MOID = 1.20938 au 
 Jupiter MOID = 2.53064 au 
 T_jup = 3.556 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456827.5 (2014-Jun-19.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05454735802139628 3.4243e-08  
q 2.205995791678259 7.7352e-08 au
tp 2457082.784975430291
(2015-Mar-01.28497543)
0.00013589 TDB
node 113.9946558198976 2.7636e-05 deg
peri 103.8487553375626 4.7021e-05 deg
i 7.509269886889584 3.9969e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      7709 days (21.11 yr)  
   first obs. used      1998-09-24  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50092  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:41:08  

Additional Information
 Jupiter MOID = 2.53064 au 
 T_jup = 3.556 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.172606821900209E-15 -2.633499541241409E-15 -4.012409869061107E-13 -6.760635958070869E-15 -1.25466003621971E-13 -4.892482680417416E-16
q -2.633499541241409E-15 5.983276038804618E-15 8.441012775714695E-13 1.477901781396251E-14 2.630437066256804E-13 1.23928042651849E-15
tp -4.012409869061107E-13 8.441012775714695E-13 1.846722137017654E-8 -4.048859459888799E-13 5.18010622447273E-9 -9.267873972936961E-13
node -6.760635958070869E-15 1.477901781396251E-14 -4.048859459888799E-13 7.637476533723306E-10 -7.568884691995493E-10 1.030400562705289E-11
peri -1.25466003621971E-13 2.630437066256804E-13 5.18010622447273E-9 -7.568884691995493E-10 2.210954476789987E-9 -1.050409584578667E-11
i -4.892482680417416E-16 1.23928042651849E-15 -9.267873972936961E-13 1.030400562705289E-11 -1.050409584578667E-11 1.597518154977235E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO347861  
diameter diameter 4.287 km 0.329 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.201   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49271 (1998 UG15)          Discovered 1998-Oct-20 by Zoltowski, F. B. at Woomera
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 UG15 = 2000 AG58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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