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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0994928699480105 2.6651e-08  
a 2.620767294912951 7.3818e-09 au
q 2.360019635276178 6.9628e-08 au
i 9.414000926056032 6.6323e-07 deg
node 23.53715098739787 3.9275e-06 deg
peri 346.7663567288161 6.8548e-06 deg
M 224.509940990957 5.8588e-06 deg
tp 2459979.738317851424
(2023-Feb-04.23831785)
2.6846e-05 TDB
period 1549.676750915719
4.24
6.5473e-06
1.793e-08
d
yr
n .2323065115271765 9.8149e-10 deg/d
Q 2.881514954549725 8.1162e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3007  
   data-arc span      25855 days (70.79 yr)  
   first obs. used      1950-09-13  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:00:50  

Additional Information
 Earth MOID = 1.36048 au 
 Jupiter MOID = 2.58382 au 
 T_jup = 3.379 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457294.5 (2015-Sep-29.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09803961018782963 2.675e-08  
q 2.364851139300529 6.9853e-08 au
tp 2456873.526850618419
(2014-Aug-04.02685062)
2.0448e-05 TDB
node 23.59070957451667 3.9325e-06 deg
peri 345.6460529876728 6.8634e-06 deg
i 9.407704590541709 6.6351e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3007  
   data-arc span      25855 days (70.79 yr)  
   first obs. used      1950-09-13  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:00:50  

Additional Information
 Jupiter MOID = 2.58382 au 
 T_jup = 3.379 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.155884172170269E-16 -1.860137244198396E-15 -1.515668858091784E-13 -3.220089031040326E-15 -7.301491108794702E-14 -9.422590028773256E-16
q -1.860137244198396E-15 4.879482017639914E-15 4.33541042926838E-13 8.185313273890956E-15 2.012962437865482E-13 2.405790031936988E-15
tp -1.515668858091784E-13 4.33541042926838E-13 4.181156475325836E-10 -2.019976727545653E-12 1.108664335725257E-10 -4.180629053257478E-12
node -3.220089031040326E-15 8.185313273890956E-15 -2.019976727545653E-12 1.546423715840996E-11 -1.58177896969532E-11 -1.947546014636025E-12
peri -7.301491108794702E-14 2.012962437865482E-13 1.108664335725257E-10 -1.58177896969532E-11 4.710648824784594E-11 8.533361106742998E-13
i -9.422590028773256E-16 2.405790031936988E-15 -4.180629053257478E-12 -1.947546014636025E-12 8.533361106742998E-13 4.402445411204811E-13

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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