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101810 Beiyou (1999 JA6)
Classification: Outer Main-belt Asteroid          SPK-ID: 2101810
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1623721919740078 4.3189e-08  
a 3.229752854908288 2.7805e-08 au
q 2.70533080432252 1.3805e-07 au
i 26.24190220977825 5.0295e-06 deg
node 117.6809748797175 1.0306e-05 deg
peri 117.8210539364039 1.8475e-05 deg
M 229.9121781751652 1.6963e-05 deg
tp 2459766.601837981356
(2022-Jul-06.10183798)
0.00010584 TDB
period 2120.080556384843
5.80
2.7378e-05
7.496e-08
d
yr
n .1698048684592775 2.1928e-09 deg/d
Q 3.754174905494056 3.232e-08 au
  Orbit Determination Parameters
   # obs. used (total)      718  
   data-arc span      10518 days (28.80 yr)  
   first obs. used      1992-01-09  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53151  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:23  

Additional Information
 Earth MOID = 1.78322 au 
 Jupiter MOID = 1.73075 au 
 T_jup = 3.006 
[ 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 14.0   n/a MPO502728  
diameter diameter 8.023 km 0.137 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.44 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.083   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101810 Beiyou           Discovered 1999 May 8 by the Beijing Schmidt CCD Asteroid Program at Xinglong.
Beiyou (Beijing University of Posts and Telecommunications) is a key multidisciplinary research university of China, with programs in engineering, management, humanities and sciences, and information technology.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2020-09-24Last Updated: 2020-10-21

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