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1993 Guacolda (1968 OH1)
Classification: Main-belt Asteroid          SPK-ID: 2001993
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0650698218436556 3.4704e-08  
a 3.059678364350451 1.6821e-08 au
q 2.860585638283279 1.0536e-07 au
i 11.47799747359824 4.8107e-06 deg
node 158.0110457213376 2.4013e-05 deg
peri 156.8763232148528 4.9871e-05 deg
M 167.1818403010594 4.4548e-05 deg
tp 2457692.682206213679
(2016-Oct-31.18220621)
0.00024084 TDB
period 1954.843930265101
5.35
1.612e-05
4.413e-08
d
yr
n .1841579240298634 1.5186e-09 deg/d
Q 3.258771090417623 1.7915e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1537  
   data-arc span      18509 days (50.67 yr)  
   first obs. used      1968-07-25  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52302  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:15:09  

Additional Information
 Earth MOID = 1.85055 au 
 Jupiter MOID = 2.03597 au 
 T_jup = 3.200 
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Orbital Elements at Epoch 2456219.5 (2012-Oct-19.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06064041895593371 3.3837e-08  
q 2.878219656271535 1.0148e-07 au
tp 2455726.355165514665
(2011-Jun-13.85516551)
0.00026248 TDB
node 158.3236733851165 2.408e-05 deg
peri 155.1326205801541 5.35e-05 deg
i 11.44760797197445 4.8096e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1537  
   data-arc span      18509 days (50.67 yr)  
   first obs. used      1968-07-25  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52302  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:15:09  

Additional Information
 Jupiter MOID = 2.03597 au 
 T_jup = 3.200 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.144935634180379E-15 -3.392122375365308E-15 3.039794664014143E-12 1.199576968757321E-14 5.343415193810722E-13 1.432247551821081E-15
q -3.392122375365308E-15 1.029746252881762E-14 -8.846086738044817E-12 -3.461796306614747E-14 -1.541733145047635E-12 -4.764081454819354E-15
tp 3.039794664014143E-12 -8.846086738044817E-12 6.889650989592801E-8 5.258033705050072E-11 1.257545265850048E-8 -6.474008479832413E-13
node 1.199576968757321E-14 -3.461796306614747E-14 5.258033705050072E-11 5.79864594717938E-10 -5.587868480442319E-10 5.524620655092096E-11
peri 5.343415193810722E-13 -1.541733145047635E-12 1.257545265850048E-8 -5.587868480442319E-10 2.862301620990072E-9 -5.44468811428839E-11
i 1.432247551821081E-15 -4.764081454819354E-15 -6.474008479832413E-13 5.524620655092096E-11 -5.44468811428839E-11 2.313234790880998E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9   n/a MPO435715  
diameter diameter 8.409 km 0.238 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 3.584923 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.158   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1993 Guacolda           Discovered 1968 July 25 by H. Wroblewski on exposures by G. Plouguin and I. Belyaiev at the University of Chile, Cerro El Roble Station.
Named for the beautiful and heroic wife of the Araucanian chief Lautaro, formerly a servant in a Spanish home. She accompanied her husband in battle, fighting side by side with him.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5358Last Updated: 2006-03-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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