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427 Galene (A897 RB)
Classification: Main-belt Asteroid          SPK-ID: 2000427
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201120490578807 3.6402e-08  
a 2.970633449283918 1.0751e-08 au
q 2.613824578690547 1.1027e-07 au
i 5.128469722042156 3.7246e-06 deg
node 297.3680529722756 4.1151e-05 deg
peri 11.16480776188572 4.3867e-05 deg
M 39.1322930795728 1.4754e-05 deg
tp 2458997.215238791666
(2020-May-27.71523879)
7.6761e-05 TDB
period 1870.130990948793
5.12
1.0152e-05
2.779e-08
d
yr
n .192499884629663 1.045e-09 deg/d
Q 3.327442319877289 1.2042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      4323  
   data-arc span      42386 days (116.05 yr)  
   first obs. used      1905-01-26  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38437  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:52:27  

Additional Information
 Earth MOID = 1.5973 au 
 Jupiter MOID = 1.91025 au 
 T_jup = 3.246 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456732.5 (2014-Mar-16.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1204880194314822 3.6396e-08  
q 2.612908640563692 1.105e-07 au
tp 2457133.485745965471
(2015-Apr-20.98574597)
7.8281e-05 TDB
node 297.4387298704484 4.1213e-05 deg
peri 12.56280181501013 4.3895e-05 deg
i 5.124372333436642 3.7208e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      4323  
   data-arc span      42386 days (116.05 yr)  
   first obs. used      1905-01-26  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38437  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:52:27  

Additional Information
 Jupiter MOID = 1.91025 au 
 T_jup = 3.246 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.324662342722453E-15 -4.007631489096981E-15 9.573329122892436E-13 6.082720361376971E-15 1.695133867984732E-13 -7.801761006401718E-16
q -4.007631489096981E-15 1.221126809213205E-14 -3.053905484203127E-12 -1.683193574539151E-14 -5.495018798648473E-13 2.793966933351505E-15
tp 9.573329122892436E-13 -3.053905484203127E-12 6.127891451362956E-9 4.679904204693974E-12 1.201450954915738E-9 -9.984446400687771E-13
node 6.082720361376971E-15 -1.683193574539151E-14 4.679904204693974E-12 1.698505502520956E-9 -1.690371701114109E-9 4.110873421089748E-11
peri 1.695133867984732E-13 -5.495018798648473E-13 1.201450954915738E-9 -1.690371701114109E-9 1.926773089183803E-9 -4.112560329009891E-11
i -7.801761006401718E-16 2.793966933351505E-15 -9.984446400687771E-13 4.110873421089748E-11 -4.112560329009891E-11 1.384404069473761E-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 10.22   n/a E2021B10  
diameter diameter 32.193 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.705 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Caspari, P. (2009) Minor Planet Bull. 36, 168.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.205   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

427 Galene (A897 RB)          Discovered 1897-Aug-27 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A897 RB = 1971 BD4 = 1992 AQ3 = A905 BC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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