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JPL Small-Body Database Browser
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43 Ariadne
Classification: Main-belt Asteroid          SPK-ID: 2000043
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 112 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1684345840214247 3.4964e-08  
a 2.203158413571222 3.3335e-09 au
q 1.832070342648051 7.7097e-08 au
i 3.471363276974746 4.1178e-06 deg
node 264.8093075595518 6.5095e-05 deg
peri 16.34933044095614 6.6243e-05 deg
M 258.3900083334685 1.3555e-05 deg
tp 2459337.632739681492
(2021-May-03.13273968)
4.528e-05 TDB
period 1194.447359897907
3.27
2.7109e-06
7.422e-09
d
yr
n .3013946131797471 6.8404e-10 deg/d
Q 2.574246484494393 3.895e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2639  
   data-arc span      56768 days (155.42 yr)  
   first obs. used      1864-08-03  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53392  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:13:01  

Additional Information
 Earth MOID = .815921 au 
 Jupiter MOID = 2.55526 au 
 T_jup = 3.642 
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Orbital Elements at Epoch 2455152.5 (2009-Nov-17.0) TDB
Reference: JPL 112 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .167854085878818 3.4777e-08  
q 1.833508233146836 7.6662e-08 au
tp 2454557.580971934714
(2008-Apr-01.08097193)
4.2364e-05 TDB
node 264.9303110240159 6.521e-05 deg
peri 15.85729510476617 6.6375e-05 deg
i 3.467262512471599 4.1154e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2639  
   data-arc span      56768 days (155.42 yr)  
   first obs. used      1864-08-03  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53392  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:13:01  

Additional Information
 Jupiter MOID = 2.55526 au 
 T_jup = 3.642 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.209428581772419E-15 -2.664311168370246E-15 -1.189126046680715E-13 6.358169085418906E-15 -4.79415328075984E-14 -2.948557598918014E-16
q -2.664311168370246E-15 5.877013941657199E-15 2.875093292877314E-13 -1.36201855820468E-14 1.130226332393792E-13 6.814948376488662E-16
tp -1.189126046680715E-13 2.875093292877314E-13 1.794735547386627E-9 2.645688769928896E-12 5.377553191392404E-10 8.365503504631584E-14
node 6.358169085418906E-15 -1.36201855820468E-14 2.645688769928896E-12 4.252377120020669E-9 -4.243215875789748E-9 -3.085194494908229E-11
peri -4.79415328075984E-14 1.130226332393792E-13 5.377553191392404E-10 -4.243215875789748E-9 4.40558164207004E-9 3.081583901411805E-11
i -2.948557598918014E-16 6.814948376488662E-16 8.365503504631584E-14 -3.085194494908229E-11 3.081583901411805E-11 1.693622161529073E-11

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 7.9   n/a MPO502153 IRAS observations used: 3
magnitude slope G 0.11   n/a PDS3 (MPC 17257) Fit
diameter diameter 71.340 km 1.254 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.76218 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Burchi, R.; Milano, L. (1974) Astron. Astrophys. Suppl. Ser. 15, 173-180.]
[Lustig, G.; Dvorak, R. (1975) Acta Phys. Austriaca 43, 89-97.]
[Van Houten-Groeneveld, I.; van Houten, C.J.; Zappala, V. (1979) Astron. Astrophys. Suppl. Ser. 35, 223-232.]
[Di Martino, M.; Zappala, V.; De Sanctis, G.; Cacciatori, S. (1987) Icarus 69, 338-353.]
[Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1987) Icarus 70, 191-245.]
[Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1988) Icarus 76, 19-77.]
[Michalowski, T. (1988) Acta Astronomica 38, 455-468.]
[Magnusson, P. (1990) Icarus 85, 229-240.]
[Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1991) Icarus 89, 44-64.]
[De Angelis, G. (1992) in Physical properties of small solar system bodies. A. Brahic, J.-C. Gerard, J. Surdej, eds. Universite de Liege, Institut d'Astrophysique, Liege, pp. 195-201.]
[Michalowski, T. (1993) Icarus 106, 563-572.]
[De Angelis, G. (1995) Planet. Space Sci. 43, 649-682.]
[Dotto, E.; De Angelis, G.; Di Martino, M.; Barucci, M.A.; et al. (1995) Icarus 117, 313-327.]
[Szabo, Gy.; Sarneczky, K.; Kiss, L.L. (1999) in Proc. IAU Coll. 173, Evolution and Source Regions of Asteroids and Comets, 185-188.]
[Foerster, I.; Potthoff, H. (2001) Minor Planet Bull. 28, 25-26.]
[Kaasalainen, M.; Torppa, J.; Piironen, J. (2002) Icarus 159, 369-395.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hamanowa, H.; Hamanowa, H. (2011) http://www2.ocn.ne.jp/~hamaten/astlcdata.htm]
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Dykhuis, M.J.; Molnar, L.A.; Gates, C.J.; Gonzales, J.A.; et al. (2016) Icarus 267, 174-203.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Viikinkoski, M.; Marchis, F.; Durech, J.; et al (2017) Astron. Astrophys. 601, A114.]
geometric albedo albedo 0.234   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.863   0.014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=8; phase (min.=2.51, mean=11.50, max.=26.13) deg.
U-B UB 0.490   0.014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.93, mean=13.67, max.=26.13) 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)

43 Ariadne          Discovered 1857-Apr-15 by Pogson, N. R. at Oxford
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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