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134 Sophrosyne (A873 SA)
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 115 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1149684437450124 1.1966e-08  
a 2.565361642893574 5.3365e-09 au
q 2.270426007166951 2.9204e-08 au
i 11.60716573890896 1.0824e-06 deg
node 345.8665106579174 1.4954e-06 deg
peri 84.87765908563674 1.05e-05 deg
M 253.9615996799647 1.1907e-05 deg
tp 2459642.560783285622
(2022-Mar-04.06078329)
5.0429e-05 TDB
period 1500.794820579305
4.11
4.683e-06
1.282e-08
d
yr
n .2398728960571975 7.4848e-10 deg/d
Q 2.860297278620196 5.9501e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2529  
   data-arc span      52307 days (143.21 yr)  
   first obs. used      1877-09-10  
   last obs. used      2020-11-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42116  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:20:56  

Additional Information
 Earth MOID = 1.31865 au 
 Jupiter MOID = 2.4169 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 8.82   n/a E2020-QM5 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. 2020-October); 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 (A873 SA)          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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