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134 Sophrosyne
Classification: Main-belt Asteroid          SPK-ID: 2000134
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 93 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1171097690181707 3.4383e-08  
a 2.562619797409635 6.7948e-09 au
q 2.262511984853601 8.8326e-08 au
i 11.60181188126506 4.2127e-06 deg
node 345.9865688477021 1.9117e-05 deg
peri 84.76016206724906 2.6045e-05 deg
M 181.7880752421453 1.7298e-05 deg
tp 2458142.252386525897
(2018-Jan-23.75238653)
7.2413e-05 JED
period 1498.389400777477
4.10
5.9595e-06
1.632e-08
d
yr
n .240257972869539 9.5557e-10 deg/d
Q 2.862727609965669 7.5906e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1336  
   data-arc span      50392 days (137.97 yr)  
   first obs. used      1877-09-10  
   last obs. used      2015-08-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53452  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:02:27  

Additional Information
 Earth MOID = 1.31051 au 
 Jupiter MOID = 2.42637 au 
 T_jup = 3.396 
[ 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 8.76 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 20
magnitude slope G 0.28   n/a PDS3 (MPC 17257) Fit
diameter diameter 108 km n/a Dunham occult. list: Dunham 1981a Yeomans E-mail 2001-Apr-04
rotation period rot_per 17.196 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Pilcher, F. (2015) Minor Planet Bul. 42, 280-281.]
geometric albedo albedo 0.0364   0.001 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 20
B-V BV .690 mag .022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=6; phase (min.=8.28, mean=16.71, max.=25.70) deg.
U-B UB .322 mag .023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=8.28, mean=14.91, max.=16.83) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B Ch   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)

134 Sophrosyne          Discovered 1873-Sep-27 by Luther, R. at Dusseldorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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