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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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05503807896216907 3.4043e-08  
a 2.332420157279592 9.2269e-09 au
q 2.204048232490283 7.6907e-08 au
i 7.51173534456184 3.994e-06 deg
node 113.9576078142205 2.7385e-05 deg
peri 103.7681950617438 4.6675e-05 deg
M 170.590973790236 3.7175e-05 deg
tp 2458383.958728901526
(2018-Sep-22.45872890)
0.00013438 TDB
period 1301.093795668071
3.56
7.7206e-06
2.114e-08
d
yr
n .2766902749045477 1.6419e-09 deg/d
Q 2.460792082068901 9.7347e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1382  
   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      .507  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:23:31  

Additional Information
 Earth MOID = 1.20938 au 
 Jupiter MOID = 2.53064 au 
 T_jup = 3.556 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456864.5 (2014-Jul-26.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05448963732014284 3.4115e-08  
q 2.205945956823324 7.6989e-08 au
tp 2457083.010200110089
(2015-Mar-01.51020011)
0.00013601 TDB
node 113.9944445174073 2.74e-05 deg
peri 103.915932375261 4.6933e-05 deg
i 7.509228407430473 3.9926e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1382  
   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      .507  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:23:31  

Additional Information
 Jupiter MOID = 2.53064 au 
 T_jup = 3.556 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.163804419297559E-15 -2.611308048385007E-15 -3.919323348727028E-13 -6.562580766476169E-15 -1.237349454726792E-13 -4.691399791913948E-16
q -2.611308048385007E-15 5.927367536612618E-15 8.187673979227003E-13 1.42586671217196E-14 2.58163622744642E-13 1.1877798828311E-15
tp -3.919323348727028E-13 8.187673979227003E-13 1.849884176097361E-8 -2.80185484743791E-12 5.192839326166788E-9 -1.062521397834115E-12
node -6.562580766476169E-15 1.42586671217196E-14 -2.80185484743791E-12 7.507380549872127E-10 -7.446402802358057E-10 9.639901559401022E-12
peri -1.237349454726792E-13 2.58163622744642E-13 5.192839326166788E-9 -7.446402802358057E-10 2.20272639819325E-9 -9.881778976155398E-12
i -4.691399791913948E-16 1.1877798828311E-15 -1.062521397834115E-12 9.639901559401022E-12 -9.881778976155398E-12 1.594054015760771E-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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