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462 Eriphyla (A900 UJ)
Classification: Main-belt Asteroid          SPK-ID: 2000462
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 .08836066423645517 2.2359e-08  
a 2.872044771899835 1.0122e-08 au
q 2.618268988137928 6.8536e-08 au
i 3.192702504772905 7.8417e-07 deg
node 105.2762904790407 1.8862e-05 deg
peri 250.9706310676105 1.8737e-05 deg
M 265.1464153486779 1.0453e-05 deg
tp 2459668.921135915641
(2022-Mar-30.42113592)
5.2541e-05 TDB
period 1777.80955300228
4.87
9.3982e-06
2.573e-08
d
yr
n .2024963806680244 1.0705e-09 deg/d
Q 3.125820555661743 1.1016e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3138  
   data-arc span      43961 days (120.36 yr)  
   first obs. used      1900-10-23  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44028  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:56:06  

Additional Information
 Earth MOID = 1.61409 au 
 Jupiter MOID = 2.26803 au 
 T_jup = 3.289 
[ 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 9.41   n/a E2021B10 IRAS observations used: 8
diameter diameter 34.274 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.659 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Binzel, R.P. (1987) Icarus 72, 135-208.]
[Slivan, S.M.; Binzel, R.P. (1996) Icarus 124, 452-470.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Slivan, S.M.; Binzel, R.P.; Kaasalianen, M.; Hock, A.N.; et al. (2009) Icarus 200, 514-530.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.259   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.834   0.041 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=7.13, mean=10.58, max.=15.66) deg.
U-B UB 0.421   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=7.13, mean=9.81, max.=15.66) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B S   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)

462 Eriphyla (A900 UJ)          Discovered 1900-Oct-22 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A900 UJ = 1927 CP = 1946 DB = 1948 OG = 1951 EA3 = 1957 KB = 1958 RR = 1959 WB = A896 YA = A907 BB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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