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JPL Small-Body Database Browser
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134 Sophrosyne
Classification: Main-belt Asteroid          SPK-ID: 2000134
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 107 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1155712437901892 3.2147e-08  
a 2.56501911774135 6.005e-09 au
q 2.268576667958369 8.1026e-08 au
i 11.59915673985094 3.9574e-06 deg
node 345.9222858843265 1.6832e-05 deg
peri 84.67821087430661 2.3905e-05 deg
M 206.2033471096092 1.7111e-05 deg
tp 2459641.530538365737
(2022-Mar-03.03053837)
7.1693e-05 TDB
period 1500.494253123528
4.11
5.2692e-06
1.443e-08
d
yr
n .2399209455488417 8.4252e-10 deg/d
Q 2.861461567524332 6.699e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2198  
   data-arc span      51836 days (141.92 yr)  
   first obs. used      1877-09-10  
   last obs. used      2019-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44593  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:18:14  

Additional Information
 Earth MOID = 1.31726 au 
 Jupiter MOID = 2.4181 au 
 T_jup = 3.395 
[ 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 9.0   n/a MPO473762 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. 2019-August); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Pilcher, F. (2015) Minor Planet Bull. 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 0.690   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=8.28, mean=16.71, max.=25.70) deg.
U-B UB 0.322   0.023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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