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236 Honoria
Classification: Main-belt Asteroid          SPK-ID: 2000236
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1904240318759702 3.8804e-08  
a 2.797870234719409 8.7116e-09 au
q 2.265088503958372 1.0861e-07 au
i 7.694227593655665 5.0107e-06 deg
node 185.8608810067205 3.5785e-05 deg
peri 174.8718275041671 3.7923e-05 deg
M 294.5541608409872 1.2989e-05 deg
tp 2457911.255854169514
(2017-Jun-06.75585417)
6.2224e-05 JED
period 1709.384568042759
4.68
7.9837e-06
2.186e-08
d
yr
n .2106021118537411 9.8362e-10 deg/d
Q 3.330651965480446 1.0371e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      48201 days (131.97 yr)  
   first obs. used      1884-04-28  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57658  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:26:21  

Additional Information
 Earth MOID = 1.26121 au 
 Jupiter MOID = 2.12229 au 
 T_jup = 3.287 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.18 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
magnitude slope G -0.02   n/a PDS3 (MPC 17258) Fit
diameter diameter 86.20 km 3.7 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
rotation period rot_per 12.336 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Lagerkvist, C.-I.; Hahn, G.; Magnusson, P.; Rickman, H. (1987) Astron. Astrophys. Suppl. Ser. 70, 21-32.]
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Marciniak, A.; Pilcher, F.; Santana-Ros, T.; Oszkiewicz; Kankiewicz, P. (2014) ACM 2014, Poster 57.]
[Pilcher, F. (2014) Minor Planet Bul. 41, 155-156.]
geometric albedo albedo 0.1271   0.012 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
B-V BV .852 mag .016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=6.27, mean=12.05, max.=20.17) deg.
U-B UB .444 mag .024 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=6; phase (min.=5.06, mean=10.88, max.=20.17) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B L   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

236 Honoria          Discovered 1884-Apr-26 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1930 KK = 1953 GJ1 = A904 PA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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