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100085 (1992 UY4)
Classification: Apollo [NEO, PHA]          SPK-ID: 2100085
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 104 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6188532437896024 9.7342e-09  
a 2.652313175534919 1.3434e-08 au
q 1.010920563309234 2.6711e-08 au
i 2.642085724864565 4.7109e-06 deg
node 305.2292882970162 2.7456e-05 deg
peri 42.1417268118368 2.892e-05 deg
M 152.9913729013395 8.3166e-06 deg
tp 2458329.998008668057
(2018-Jul-30.49800867)
3.1754e-05 TDB
period 1577.740707217263
4.32
1.1987e-05
3.282e-08
d
yr
n .2281743751385797 1.7336e-09 deg/d
Q 4.293705787760605 2.1748e-08 au
  Orbit Determination Parameters
   # obs. used (total)      624  
   # delay obs. used      13  
   # Doppler obs. used      0  
   data-arc span      14445 days (39.55 yr)  
   first obs. used      1979-06-29  
   last obs. used      2019-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34114  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-22 08:09:21  

Additional Information
 Earth MOID = .0253978 au 
 Jupiter MOID = 1.16695 au 
 T_jup = 3.082 
[ 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 17.8   n/a MPO264054  
rotation period rot_per 12.9060 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D.; Jacques, C.; Pimentel, E.; Crawford, G.; et al. (2006) Minor Planet Bull. 33, 20-21.]

100085 (1992 UY4)          Discovered 1992-Oct-25 by Shoemaker, C. S. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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