Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457060.5 (2015-Feb-07.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09810435526520012 3.1344e-08  
q 2.364145513363339 8.0816e-08 au
tp 2456873.035550452931
(2014-Aug-03.53555045)
2.0865e-05 TDB
node 23.59834526025876 3.9593e-06 deg
peri 345.4881151422782 7.1388e-06 deg
i 9.40794344203729 6.6758e-07 deg
  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
 Jupiter MOID = 2.58304 au 
 T_jup = 3.379 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.824766046393073E-16 -2.524065312145355E-15 -2.202552530109004E-13 -3.305498109480652E-15 -1.043941162901192E-13 -3.481181963711648E-16
q -2.524065312145355E-15 6.531249411916897E-15 6.038765669983517E-13 8.392305176160989E-15 2.79228192702056E-13 9.372648768934398E-16
tp -2.202552530109004E-13 6.038765669983517E-13 4.353374672860934E-10 -1.971288276495658E-12 1.188021156715826E-10 -4.342430102695591E-12
node -3.305498109480652E-15 8.392305176160989E-15 -1.971288276495658E-12 1.567627645405466E-11 -1.601143940115415E-11 -1.977314793067736E-12
peri -1.043941162901192E-13 2.79228192702056E-13 1.188021156715826E-10 -1.601143940115415E-11 5.096193476828611E-11 8.110793662743308E-13
i -3.481181963711648E-16 9.372648768934398E-16 -4.342430102695591E-12 -1.977314793067736E-12 8.110793662743308E-13 4.456690878771998E-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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-15 20:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin