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85505 (1997 UU3)
Classification: Main-belt Asteroid          SPK-ID: 2085505
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2818328887913027 3.1725e-08  
a 2.343766824563205 8.9578e-09 au
q 1.683216249743338 7.6095e-08 au
i 24.91003435550279 6.5227e-06 deg
node 225.6501450134656 1.0231e-05 deg
peri 109.3484990941086 1.7136e-05 deg
M 148.7289535551026 1.2733e-05 deg
tp 2458459.044147428369
(2018-Dec-06.54414743)
4.479e-05 TDB
period 1310.599599247296
3.59
7.5136e-06
2.057e-08
d
yr
n .2746834351290473 1.5747e-09 deg/d
Q 3.004317399383071 1.1482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      13777 days (37.72 yr)  
   first obs. used      1982-05-15  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46431  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:33:29  

Additional Information
 Earth MOID = .819405 au 
 Jupiter MOID = 2.86019 au 
 T_jup = 3.388 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456972.5 (2014-Nov-11.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2830331580362658 3.1744e-08  
q 1.679902078180438 7.617e-08 au
tp 2457148.583182890284
(2015-May-06.08318289)
4.1181e-05 TDB
node 225.6904621021821 1.0238e-05 deg
peri 109.3231832067189 1.706e-05 deg
i 24.90378079115941 6.5204e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      13777 days (37.72 yr)  
   first obs. used      1982-05-15  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46431  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:33:29  

Additional Information
 Jupiter MOID = 2.86019 au 
 T_jup = 3.388 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.007683058787476E-15 -2.409850898056078E-15 -1.669163050335762E-13 5.650659929881809E-15 -4.155407604228918E-14 -8.714712435691592E-15
q -2.409850898056078E-15 5.801937891857423E-15 4.80244317534021E-13 -1.592790488635732E-14 1.246861409795483E-13 2.35988120165981E-14
tp -1.669163050335762E-13 4.80244317534021E-13 1.695833590602909E-9 -3.435433563305862E-11 5.743083627757061E-10 2.798408812208715E-11
node 5.650659929881809E-15 -1.592790488635732E-14 -3.435433563305862E-11 1.048223573270714E-10 -1.052693803730707E-10 2.02996848347837E-11
peri -4.155407604228918E-14 1.246861409795483E-13 5.743083627757061E-10 -1.052693803730707E-10 2.910393698880108E-10 -9.967863459698626E-12
i -8.714712435691592E-15 2.35988120165981E-14 2.798408812208715E-11 2.02996848347837E-11 -9.967863459698626E-12 4.25159213228922E-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 15.0   n/a MPO359339  
diameter diameter 7.362 km 0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85505 (1997 UU3)          Discovered 1997-Oct-26 by Kobayashi, T. at Oizumi
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 UU3 = 1982 JD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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