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696 Leonora (A916 BD)
Classification: Main-belt Asteroid          SPK-ID: 2000696
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2501112781101285 3.4569e-08  
a 3.169973553285323 1.3662e-08 au
q 2.377127416297826 1.0936e-07 au
i 13.03727916442608 4.2034e-06 deg
node 299.5060574436166 1.8429e-05 deg
peri 103.8263277579198 2.0409e-05 deg
M 227.4539228587339 1.0251e-05 deg
tp 2459959.507842591877
(2023-Jan-15.00784259)
6.1856e-05 TDB
period 2061.493099051559
5.64
1.3327e-05
3.649e-08
d
yr
n .1746307082791725 1.129e-09 deg/d
Q 3.962819690272821 1.7079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2642  
   data-arc span      38214 days (104.62 yr)  
   first obs. used      1916-02-03  
   last obs. used      2020-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38874  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:26:47  

Additional Information
 Earth MOID = 1.42616 au 
 Jupiter MOID = 1.71014 au 
 T_jup = 3.114 
[ 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 9.59   n/a E2021B10  
diameter diameter 81.580 km 0.860 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 26.8964 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Husarik, M.; Svoren, J. (2012) Minor Planet Bull. 39, 100-101.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.022   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
Tholen spectral type spec_T XC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a medium resolution spectrum published by Chapman and Gaffey (1979)

696 Leonora (A916 BD)          Discovered 1910-Jan-10 by Metcalf, J. H. at Taunton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A916 BD = 1927 AC = 1948 PO = A910 AC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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