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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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05503807291733791 3.3499e-08  
a 2.332420155442721 9.0346e-09 au
q 2.204048244853596 7.5905e-08 au
i 7.511735829223205 3.9397e-06 deg
node 113.9576101963633 2.7204e-05 deg
peri 103.7682000553851 4.5962e-05 deg
M 170.5909676332076 3.6649e-05 deg
tp 2458383.958751882272
(2018-Sep-22.45875188)
0.00013235 TDB
period 1301.093794131079
3.56
7.5597e-06
2.07e-08
d
yr
n .2766902752314042 1.6076e-09 deg/d
Q 2.460792066031846 9.5319e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1470  
   data-arc span      8072 days (22.10 yr)  
   first obs. used      1998-09-24  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49565  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:33:29  

Additional Information
 Earth MOID = 1.20938 au 
 Jupiter MOID = 2.53064 au 
 T_jup = 3.556 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456922.5 (2014-Sep-22.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05441984318885241 3.3564e-08  
q 2.205862168148276 7.5986e-08 au
tp 2457083.299635044539
(2015-Mar-01.79963504)
0.00013384 TDB
node 113.9938509028854 2.722e-05 deg
peri 104.0041654252761 4.6257e-05 deg
i 7.509153084226955 3.9382e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1470  
   data-arc span      8072 days (22.10 yr)  
   first obs. used      1998-09-24  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49565  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:33:29  

Additional Information
 Jupiter MOID = 2.53064 au 
 T_jup = 3.556 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.126559874194759E-15 -2.535691226397084E-15 -2.40695386131389E-13 -5.969863750698077E-15 -7.901894096186293E-14 -4.238821540249149E-16
q -2.535691226397084E-15 5.773908215767812E-15 5.087782636751595E-13 1.289158505578058E-14 1.667408798800542E-13 1.067407847664825E-15
tp -2.40695386131389E-13 5.087782636751595E-13 1.791324346293104E-8 -1.287809094771892E-12 5.015984928810943E-9 -4.472526405905022E-13
node -5.969863750698077E-15 1.289158505578058E-14 -1.287809094771892E-12 7.409427202355538E-10 -7.345083444496378E-10 7.612794020797216E-12
peri -7.901894096186293E-14 1.667408798800542E-13 5.015984928810943E-9 -7.345083444496378E-10 2.13974273492383E-9 -7.694239551147635E-12
i -4.238821540249149E-16 1.067407847664825E-15 -4.472526405905022E-13 7.612794020797216E-12 -7.694239551147635E-12 1.550975233103077E-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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