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JPL Small-Body Database Browser
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1723 Klemola (1936 FX)
Classification: Main-belt Asteroid          SPK-ID: 2001723
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04178056180126992 3.9433e-08  
a 3.013582623373704 1.4288e-08 au
q 2.887673448334606 1.2143e-07 au
i 10.93421202434745 4.3599e-06 deg
node 149.80941853 2.2427e-05 deg
peri 1.552780514991064 5.565e-05 deg
M 323.9775714357054 5.1661e-05 deg
tp 2458791.702501309132
(2019-Nov-04.20250131)
0.00027441 TDB
period 1910.834533225079
5.23
1.359e-05
3.721e-08
d
yr
n .1883993583643253 1.3399e-09 deg/d
Q 3.139491798412802 1.4885e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2639  
   data-arc span      32378 days (88.65 yr)  
   first obs. used      1931-03-10  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46608  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:08:09  

Additional Information
 Earth MOID = 1.89887 au 
 Jupiter MOID = 1.84994 au 
 T_jup = 3.220 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.06   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
diameter diameter 33.449 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.2545 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2016) Astron. Astrophys., submitted.]
[Brines, P.; Lozano, J.; Rodrigo, O.; Fornas, A.; et al. (2017) Minor Planet Bull. 44, 145-149.]
[Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2018) Icarus 299, 84-96.]
geometric albedo albedo 0.156   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.760   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.73 deg.
U-B UB 0.440   0.035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.73 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

1723 Klemola           Discovered 1936 Mar. 18 by Y. Vaisala at Turku.
Named in honor of Irja Klemola, formerly rector of a school in Turku, one of the founders and for many years secretary of the society Torun Ursa for amateur astronomers; she also frequently participated in the minor planet program at the Turku Observatory. This planet also honors Arnold R. Klemola, currently in charge of the proper-motion program at the Lick Observatory, also well known for his astrometric observations of comets and minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5281Last Updated: 2007-10-23

[ show close-approach data ]
Alternate Designations
 1936 FX = 1929 WE1 = 1931 FB = 1936 DJ = 1941 BF = 1942 HK = 1947 GG = 1949 UZ = 1955 XT = 1957 DE = 1957 DF = 1958 LB = 1959 PC = 1964 PF = 1965 TC = 1968 KV = A913 UF = A915 CD = A916 KB 
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