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179 Klytaemnestra (A877 VC)
Classification: Main-belt Asteroid          SPK-ID: 2000179
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1100647782462867 1.5986e-08  
a 2.971796291462587 1.0216e-08 au
q 2.64470619164962 4.6886e-08 au
i 7.818397990416672 3.9142e-07 deg
node 251.8638202617809 5.446e-06 deg
peri 103.7884018484165 1.4555e-05 deg
M 26.43819929245337 1.0633e-05 deg
tp 2459063.077972199390
(2020-Aug-01.57797220)
5.532e-05 TDB
period 1871.229180965475
5.12
9.6486e-06
2.642e-08
d
yr
n .1923869099851549 9.92e-10 deg/d
Q 3.298886391275554 1.134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3009  
   data-arc span      45079 days (123.42 yr)  
   first obs. used      1897-10-17  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46343  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:59:27  

Additional Information
 Earth MOID = 1.6529 au 
 Jupiter MOID = 2.17407 au 
 T_jup = 3.239 
[ 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 8.15   n/a E2021B10 IRAS observations used: 33
diameter diameter 69.946 km 0.518 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.173 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Ditteon, R.; Hawkins, S. (2007) Minor Planet Bull. 34, 59-64.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Colazo, M.; Fornari, C.; Santucho, M.; Mottino, A.; et al. (2020) Minor Planet Bull. 47, 188-191.]
geometric albedo albedo 0.198   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.832   0.025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=4.33, mean=5.25, max.=6.16) deg.
U-B UB 0.408   0.034 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=4.33, mean=5.25, max.=6.16) 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 Sk   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)

179 Klytaemnestra (A877 VC)          Discovered 1877-Nov-11 by Watson, J. C. at Ann Arbor
Initial announcement gave Nov. 12.
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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