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97 Klotho
Classification: Main-belt Asteroid          SPK-ID: 2000097
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 61 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2546371846173578 4.034e-08  
a 2.671062807200745 6.8936e-09 AU
q 1.990910894039011 1.0689e-07 AU
i 11.7827265798571 5.2041e-06 deg
node 159.7073016059405 2.4056e-05 deg
peri 268.5387307495883 2.5803e-05 deg
M 264.5552449076654 1.1679e-05 deg
tp 2457223.240779803115
(2015-Jul-19.74077980)
5.241e-05 JED
period 1594.50019628521
4.37
6.1727e-06
1.69e-08
d
yr
n .2257760775688273 8.7403e-10 deg/d
Q 3.35121472036248 8.6489e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1480  
   data-arc span      52203 days (142.92 yr)  
   first obs. used      1870-07-23  
   last obs. used      2013-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59028  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 13:18:02  

Additional Information
 Earth MOID = 1.04435 AU 
 T_jup = 3.305 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.63 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
diameter diameter 82.83 km 4.5 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
rotation period rot_per 35.15 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Lagerkvist, C.I.; Magnusson, P.; Williams, I.P.; Buontempo, M.E.; et al. (1988) Astron. Astrophys. Suppl. Ser. 73, 395-405.]
[Lagerkvist, C.-I.; Erikson, A.; Debehogne, H.; Festin, L.; et al. (1995) Astron. Astrophys. Suppl. Ser. 113, 115-129.]
[Piironen, J.; Magnusson, P.; Lagerkvist, C.-I.; Williams, I.P.; et al. (1997) Astron. Astrophys. Suppl. Ser. 121, 489-497.]
[Lagerkvist, C.-I.; Bel'skaya, I.; Erikson, A.; Schevchenko, V.; et al. (1998) Astron. Astrophys. Suppl. Ser. 131, 55-62.]
[Tungalag, N.; Shevchenko, V.G.; Lupishko, D.F. (2002) Kin. Fiz. Neb. Tel 18, 508-516; Kinematics and Physics of Celestial Bodies 18, ???-???.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
geometric albedo albedo 0.2285   0.027 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
B-V BV .716 mag .032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=8.26, mean=18.39, max.=23.78) deg.
U-B UB .226 mag .019 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=16.72, mean=20.93, max.=23.78) deg.
Tholen spectral type spec_T M   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

97 Klotho          Discovered 1868-Feb-17 by Tempel, E. W. at Marseille
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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