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85836 (1998 YF2)
Classification: Main-belt Asteroid          SPK-ID: 2085836
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1439706945646268 4.2175e-08  
a 2.425368727264105 1.0017e-08 au
q 2.076186707024567 1.0162e-07 au
i 2.310960127238286 4.5564e-06 deg
node 106.99180657 0.00012203 deg
peri 8.987277278761493 0.00012342 deg
M 142.0296334144576 1.7177e-05 deg
tp 2458056.195966742190
(2017-Oct-29.69596674)
6.5521e-05 TDB
period 1379.637806999123
3.78
8.547e-06
2.34e-08
d
yr
n .260938050677984 1.6165e-09 deg/d
Q 2.774550747503643 1.1459e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1206  
   data-arc span      7146 days (19.56 yr)  
   first obs. used      1998-11-18  
   last obs. used      2018-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55278  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 03:06:56  

Additional Information
 Earth MOID = 1.09285 au 
 Jupiter MOID = 2.31151 au 
 T_jup = 3.496 
[ 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 15.0   n/a MPO244836  
diameter diameter 2.375 km 0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.36 h n/a LCDB (Rev. 2019-January); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.260   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85836 (1998 YF2)          Discovered 1998-Dec-17 by ODAS at Caussols
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 YF2 = 2001 SQ42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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