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56208 (1999 GY35)
Classification: Main-belt Asteroid          SPK-ID: 2056208
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07847505018840166 4.1842e-08  
a 3.00020761531482 1.983e-08 au
q 2.764766172127365 1.3436e-07 au
i 9.439211227680458 4.9892e-06 deg
node 354.7105983468451 2.3879e-05 deg
peri 323.4637219896156 3.874e-05 deg
M 272.2589992042127 3.0019e-05 deg
tp 2459463.121138950160
(2021-Sep-05.62113895)
0.00015844 TDB
period 1898.127540278225
5.20
1.8819e-05
5.152e-08
d
yr
n .1896605956980276 1.8804e-09 deg/d
Q 3.235649058502275 2.1387e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1269  
   data-arc span      10901 days (29.85 yr)  
   first obs. used      1990-09-16  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52444  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:00:22  

Additional Information
 Earth MOID = 1.75913 au 
 Jupiter MOID = 2.09572 au 
 T_jup = 3.228 
[ 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 13.8   n/a MPO474444  
diameter diameter 6.167 km 0.391 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.664 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.185   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56208 (1999 GY35)          Discovered 1999-Apr-07 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 GY35 = 1990 SS18 = 2001 SD106 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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