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15226 (1986 UP)
Classification: Main-belt Asteroid          SPK-ID: 2015226
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2385235046444817 4.1427e-08  
a 2.394251991174476 9.0677e-09 au
q 1.823166615237511 9.6976e-08 au
i 22.47843874437905 5.4655e-06 deg
node 35.15019165730267 1.1288e-05 deg
peri 251.8964882506156 1.6194e-05 deg
M 106.624263787049 1.2862e-05 deg
tp 2458599.719338728257
(2019-Apr-26.21933873)
4.784e-05 TDB
period 1353.172654453089
3.70
7.6873e-06
2.105e-08
d
yr
n .2660414388476546 1.5114e-09 deg/d
Q 2.965337367111442 1.1231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1843  
   data-arc span      12458 days (34.11 yr)  
   first obs. used      1986-10-07  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43483  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:59:20  

Additional Information
 Earth MOID = .926204 au 
 Jupiter MOID = 2.41468 au 
 T_jup = 3.391 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457184.5 (2015-Jun-11.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2383094500204047 4.1364e-08  
q 1.823650466849232 9.684e-08 au
tp 2457247.259180753555
(2015-Aug-12.75918075)
4.7071e-05 TDB
node 35.15931278846057 1.1284e-05 deg
peri 252.0306423046479 1.6209e-05 deg
i 22.48267490414473 5.4668e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1843  
   data-arc span      12458 days (34.11 yr)  
   first obs. used      1986-10-07  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43483  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:59:20  

Additional Information
 Jupiter MOID = 2.41468 au 
 T_jup = 3.391 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.710989940891347E-15 -3.996644405841373E-15 5.994441123991759E-13 1.557721602559496E-15 1.046209157631101E-13 -9.120504780107263E-16
q -3.996644405841373E-15 9.377921142441336E-15 -1.426919397870099E-12 -3.469697926287231E-15 -2.546856592771703E-13 2.59473350332564E-15
tp 5.994441123991759E-13 -1.426919397870099E-12 2.215686428805002E-9 8.296280757682924E-13 5.604584986915347E-10 -4.733937995836346E-12
node 1.557721602559496E-15 -3.469697926287231E-15 8.296280757682924E-13 1.27334610472469E-10 -1.170574937973285E-10 -1.580124037006666E-11
peri 1.046209157631101E-13 -2.546856592771703E-13 5.604584986915347E-10 -1.170574937973285E-10 2.627273187707223E-10 1.363711273144218E-11
i -9.120504780107263E-16 2.59473350332564E-15 -4.733937995836346E-12 -1.580124037006666E-11 1.363711273144218E-11 2.988540013102155E-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 13.4   n/a MPO400156  
diameter diameter 4.203 km 0.208 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.053 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.631   0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15226 (1986 UP)          Discovered 1986-Oct-28 by Vavrova, Z. at Klet
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1986 UP = 1997 UZ26 = 2000 GL75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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