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1983 Bok (1975 LB)
Classification: Main-belt Asteroid          SPK-ID: 2001983
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09929447639127624 3.1201e-08  
a 2.621227640880658 7.7997e-09 au
q 2.360954214777073 8.045e-08 au
i 9.413112467214368 6.6733e-07 deg
node 23.53690641124174 3.9545e-06 deg
peri 346.7543956183019 7.1761e-06 deg
M 178.9904993109193 5.7582e-06 deg
tp 2458429.804161274206
(2018-Nov-07.30416127)
2.3045e-05 TDB
period 1550.085077193591
4.24
6.9187e-06
1.894e-08
d
yr
n .2322453169162659 1.0366e-09 deg/d
Q 2.881501066984243 8.5742e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2729  
   data-arc span      25758 days (70.52 yr)  
   first obs. used      1950-09-13  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45179  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:53:57  

Additional Information
 Earth MOID = 1.36075 au 
 Jupiter MOID = 2.58304 au 
 T_jup = 3.379 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.21   n/a E2021B10  
diameter diameter 15.701 km 0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 10.70 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Casalnuovo, G.B. (2015) Minor Planet Bull. 42, 139-141.]
geometric albedo albedo 0.034   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1983 Bok (1975 LB)          Discovered 1975-Jun-09 by Roemer, E. at Tucson
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1975 LB = 1950 RV = 1963 UJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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