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48476 (1991 UP3)
Classification: Main-belt Asteroid          SPK-ID: 2048476
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2011444374716599 4.3039e-08  
a 2.349168422732963 9.9484e-09 au
q 1.876646261816154 1.0234e-07 au
i 3.20655930575957 4.2846e-06 deg
node 86.95268170663145 9.6903e-05 deg
peri 321.2023800893369 9.7706e-05 deg
M 331.2929204826159 1.5104e-05 deg
tp 2459105.371183723463
(2020-Sep-12.87118372)
5.556e-05 TDB
period 1315.13294891542
3.60
8.3541e-06
2.287e-08
d
yr
n .2737365832837578 1.7389e-09 deg/d
Q 2.821690583649771 1.1949e-08 au
  Orbit Determination Parameters
   # obs. used (total)      864  
   data-arc span      9681 days (26.51 yr)  
   first obs. used      1991-10-18  
   last obs. used      2018-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57763  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 00:28:14  

Additional Information
 Earth MOID = .888092 au 
 Jupiter MOID = 2.56092 au 
 T_jup = 3.529 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456517.5 (2013-Aug-13.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .202351233781536 4.34e-08  
q 1.874028458489224 1.0334e-07 au
tp 2456473.483780238120
(2013-Jun-29.98378024)
4.6827e-05 TDB
node 86.98407274222197 9.6946e-05 deg
peri 320.9562035368594 9.7724e-05 deg
i 3.206906866253962 4.2836e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      864  
   data-arc span      9681 days (26.51 yr)  
   first obs. used      1991-10-18  
   last obs. used      2018-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57763  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 00:28:14  

Additional Information
 Jupiter MOID = 2.56092 au 
 T_jup = 3.529 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.88354453214208E-15 -4.472146740901741E-15 -5.897537537523325E-13 -3.418912114300807E-15 -1.866384381138481E-13 -3.547029294792858E-16
q -4.472146740901741E-15 1.067983815250833E-14 1.509049486116961E-12 9.14384186321302E-15 4.687487856862833E-13 9.344054907313099E-16
tp -5.897537537523325E-13 1.509049486116961E-12 2.192761436402137E-9 3.783694028532982E-12 6.086962016371509E-10 4.165596279086146E-13
node -3.418912114300807E-15 9.14384186321302E-15 3.783694028532982E-12 9.398548177043854E-9 -9.382425865100329E-9 -1.933385763206823E-11
peri -1.866384381138481E-13 4.687487856862833E-13 6.086962016371509E-10 -9.382425865100329E-9 9.549996553286795E-9 1.941937302532226E-11
i -3.547029294792858E-16 9.344054907313099E-16 4.165596279086146E-13 -1.933385763206823E-11 1.941937302532226E-11 1.834963120766512E-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 15.6   n/a MPO337645  
diameter diameter 1.827 km 0.385 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.81 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.305   0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48476 (1991 UP3)          Discovered 1991-Oct-31 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 UP3 = 1994 NG5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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