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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3913485910667552 4.9573e-08  
a 2.603738548730636 1.7135e-08 au
q 1.584769136178704 1.355e-07 au
i 2.211808224341216 4.9395e-06 deg
node 218.9653729812918 0.00011684 deg
peri 141.0809814835445 0.00011694 deg
M 300.2927734511316 9.5764e-06 deg
tp 2459651.018223814677
(2022-Mar-12.51822381)
4.3044e-05 TDB
period 1534.59749965593
4.20
1.5149e-05
4.148e-08
d
yr
n .2345892001522974 2.3157e-09 deg/d
Q 3.622707961282569 2.3841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      713  
   data-arc span      18154 days (49.70 yr)  
   first obs. used      1971-10-26  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53757  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:09:36  

Additional Information
 Earth MOID = .58165 au 
 Jupiter MOID = 1.84586 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 15.52   n/a MPO637169  
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. 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:
[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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