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2865 Laurel (1935 OK)
Classification: Main-belt Asteroid          SPK-ID: 2002865
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07031672243221442 2.9327e-08  
a 2.560391772669928 1.0223e-08 au
q 2.380353415073371 7.7489e-08 au
i 14.29561194366316 4.7471e-06 deg
node 321.7668955101885 1.6864e-05 deg
peri 293.9118272412574 4.4233e-05 deg
M 311.2430889727436 4.0534e-05 deg
tp 2459203.171062315797
(2020-Dec-19.67106232)
0.00016831 TDB
period 1496.43570309242
4.10
8.9624e-06
2.454e-08
d
yr
n .2405716458489005 1.4408e-09 deg/d
Q 2.740430130266485 1.0942e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2648  
   data-arc span      31066 days (85.05 yr)  
   first obs. used      1935-07-31  
   last obs. used      2020-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36922  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:05:20  

Additional Information
 Earth MOID = 1.40134 au 
 Jupiter MOID = 2.44834 au 
 T_jup = 3.388 
[ 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 11.4   n/a MPO384777  
diameter diameter 24.991 km 0.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 21.5 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:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.094   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2865 Laurel (1935 OK)          Discovered 1935-Jul-31 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1935 OK = 1939 PA = 1947 NF = 1951 ML = 1972 QH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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