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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1622029438565921 3.933e-08  
a 3.229917543847968 2.4692e-08 au
q 2.706015409821775 1.2986e-07 au
i 26.24171674218639 4.9836e-06 deg
node 117.6808748627547 8.7158e-06 deg
peri 117.8274420895198 1.7726e-05 deg
M 263.8467517960518 1.6952e-05 deg
tp 2459766.800622726279
(2022-Jul-06.30062273)
0.00010371 TDB
period 2120.242716595913
5.80
2.4313e-05
6.657e-08
d
yr
n .1697918814587352 1.947e-09 deg/d
Q 3.753819677874163 2.8697e-08 au
  Orbit Determination Parameters
   # obs. used (total)      885  
   data-arc span      10653 days (29.17 yr)  
   first obs. used      1992-01-09  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50208  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:44  

Additional Information
 Earth MOID = 1.7823 au 
 Jupiter MOID = 1.73031 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 14.11   n/a E2021B55  
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. 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:
[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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