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JPL Small-Body Database Browser
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736 Harvard (A912 WC)
Classification: Main-belt Asteroid          SPK-ID: 2000736
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1651016805435142 3.645e-08  
a 2.201762717029451 5.323e-09 au
q 1.838247992289835 8.1204e-08 au
i 4.376720848107367 4.035e-06 deg
node 135.9057018486311 4.5148e-05 deg
peri 200.5086949081553 4.6752e-05 deg
M 28.74409658198783 1.5245e-05 deg
tp 2458905.220304679791
(2020-Feb-25.72030468)
5.0336e-05 TDB
period 1193.312519579039
3.27
4.3274e-06
1.185e-08
d
yr
n .3016812394853581 1.094e-09 deg/d
Q 2.565277441769067 6.2018e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2864  
   data-arc span      39027 days (106.85 yr)  
   first obs. used      1912-12-09  
   last obs. used      2019-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43324  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:35:41  

Additional Information
 Earth MOID = .829231 au 
 Jupiter MOID = 2.79596 au 
 T_jup = 3.643 
[ 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 11.2   n/a MPO492758 IRAS observations used: 19
diameter diameter 17.111 km 0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 6.7 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Tedesco, E.F. (1979) PhD Dissertation, New. Mex. State Univ. 280pp.]
geometric albedo albedo 0.133   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.900   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.67 deg.
U-B UB 0.510   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.67 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

736 Harvard (A912 WC)          Discovered 1912-Nov-16 by Metcalf, J. H. at Winchester
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A912 WC = 1937 FC = 1947 HB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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