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85118 (1971 UU)
Classification: Mars-crossing Asteroid          SPK-ID: 2085118
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3910603025410935 5.461e-08  
a 2.60388483876332 1.7996e-08 au
q 1.58560884593437 1.4682e-07 au
i 2.211373400474646 5.478e-06 deg
node 218.9682871085564 0.00014562 deg
peri 141.0781939179386 0.00014567 deg
M 207.3672971773853 8.9046e-06 deg
tp 2459651.193068211676
(2022-Mar-12.69306821)
4.381e-05 TDB
period 1534.726832613594
4.20
1.591e-05
4.356e-08
d
yr
n .2345694310869191 2.4317e-09 deg/d
Q 3.62216083159227 2.5033e-08 au
  Orbit Determination Parameters
   # obs. used (total)      631  
   data-arc span      17714 days (48.50 yr)  
   first obs. used      1971-10-26  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54839  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:33:46  

Additional Information
 Earth MOID = .583316 au 
 Jupiter MOID = 1.84486 au 
 T_jup = 3.299 
[ show covariance matrix ]

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 15.4   n/a MPO432395  
diameter diameter 4.828 km 1.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 10.098 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:
[Clark, M. (2014) Minor Planet Bull. 41, 100-101.]
[Clark, M. (2014) Minor Planet Bull. 41, 178-183.]
geometric albedo albedo 0.055   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

85118 (1971 UU)          Discovered 1971-Oct-26 by Kohoutek, L. at Bergedorf
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1971 UU = 2002 AF39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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