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441 Bathilde (A898 XA)
Classification: Main-belt Asteroid          SPK-ID: 2000441
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 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08070928413867903 3.9693e-08  
a 2.805213842765985 9.9886e-09 au
q 2.57880704166043 1.1073e-07 au
i 8.159100193305036 4.2466e-06 deg
node 253.5226447306618 3.0616e-05 deg
peri 203.089471397733 4.062e-05 deg
M 280.1192239125961 2.7602e-05 deg
tp 2459381.291426522849
(2021-Jun-15.79142652)
0.00013213 TDB
period 1716.118949548389
4.70
9.166e-06
2.51e-08
d
yr
n .2097756685774824 1.1204e-09 deg/d
Q 3.031620643871541 1.0795e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2747  
   data-arc span      44200 days (121.01 yr)  
   first obs. used      1898-12-11  
   last obs. used      2019-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43394  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:27:29  

Additional Information
 Earth MOID = 1.59767 au 
 Jupiter MOID = 2.15269 au 
 T_jup = 3.304 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455741.5 (2011-Jun-29.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07965886996868163 3.9166e-08  
q 2.584348282859812 1.09e-07 au
tp 2455934.164545811693
(2012-Jan-07.66454581)
0.00013138 TDB
node 253.6118585357722 3.0691e-05 deg
peri 200.6078957738208 4.1115e-05 deg
i 8.144312003931899 4.2408e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2747  
   data-arc span      44200 days (121.01 yr)  
   first obs. used      1898-12-11  
   last obs. used      2019-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43394  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:27:29  

Additional Information
 Jupiter MOID = 2.15269 au 
 T_jup = 3.304 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.533942185935634E-15 -4.253453635481804E-15 2.735468515946709E-13 3.127990113175957E-15 7.727003400451359E-14 -7.106128926402887E-19
q -4.253453635481804E-15 1.18818849662043E-14 -5.001801464643511E-13 -9.640544081554904E-15 -1.639687705338418E-13 -2.025087063442492E-16
tp 2.735468515946709E-13 -5.001801464643511E-13 1.726059987798272E-8 5.970651875955343E-12 3.619389267248297E-9 3.242977407173306E-12
node 3.127990113175957E-15 -9.640544081554904E-15 5.970651875955343E-12 9.419217997648401E-10 -9.302192831752947E-10 5.981349113986104E-12
peri 7.727003400451359E-14 -1.639687705338418E-13 3.619389267248297E-9 -9.302192831752947E-10 1.690417693785758E-9 -5.284201623701018E-12
i -7.106128926402887E-19 -2.025087063442492E-16 3.242977407173306E-12 5.981349113986104E-12 -5.284201623701018E-12 1.79843197275286E-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 8.5   n/a MPO502157 IRAS observations used: 3
diameter diameter 65.131 km 1.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 10.446 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1980) Icarus 43, 20-32.]
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Dunckel, P.B. (2011) Posting on CALL site. http://www.minorplanet.info/call.html]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.204   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.701   0.014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=.97, mean=1.63, max.=2.15) deg.
U-B UB 0.250   0.055 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=.97, mean=1.63, max.=2.15) deg.
Tholen spectral type spec_T M   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Xk   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)

441 Bathilde (A898 XA)          Discovered 1898-Dec-08 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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