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2741 Valdivia (1975 XG)
Classification: Main-belt Asteroid          SPK-ID: 2002741
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819712043474965 3.4114e-08  
a 2.608456791980859 1.3356e-08 au
q 2.133792768055695 9.0108e-08 au
i 10.28896066344878 4.6118e-06 deg
node 151.1084735385688 2.2024e-05 deg
peri 91.61889751605845 2.6488e-05 deg
M 282.5006752468688 1.7707e-05 deg
tp 2458931.760242503998
(2020-Mar-23.26024250)
7.7239e-05 TDB
period 1538.770662600142
4.21
1.1819e-05
3.236e-08
d
yr
n .2339529916639359 1.7969e-09 deg/d
Q 3.083120815906023 1.5787e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2729  
   data-arc span      30756 days (84.21 yr)  
   first obs. used      1935-02-26  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41366  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 22:18:31  

Additional Information
 Earth MOID = 1.15121 au 
 Jupiter MOID = 2.0285 au 
 T_jup = 3.365 
[ 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 11.9   n/a MPO337271  
diameter diameter 11.679 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.098 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pray, D.P. (2004) Minor Planet Bull. 31, 6-8.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Brines, P.; Lozano, J.; Rodrigo, O.; Fornas, A.; et al. (2017) Minor Planet Bull. 44, 145-149.]
geometric albedo albedo 0.205   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2741 Valdivia (1975 XG)          Discovered 1975-Dec-01 by Torres, C. at Cerro El Roble
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1975 XG = 1935 CM = 1952 DJ2 = 1953 QS = 1969 EB1 = 1969 FC = 1973 FX1 = 1979 UA1 = 1990 FO3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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