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29075 (1950 DA)
Classification: Apollo [NEO, PHA]          SPK-ID: 2029075
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455375.5 (2010-Jun-28.0) TDB
Reference: JPL 139 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5074082915283264 3.2865e-08  
a 1.699124699710214 6.5469e-10 au
q .8369747387366735 5.6022e-08 au
i 12.18159493758073 4.6886e-06 deg
node 356.7760430517417 8.2874e-06 deg
peri 224.5327690734496 9.5085e-06 deg
M 56.99591076517925 1.7208e-06 deg
tp 2455247.421125163365
(2010-Feb-19.92112516)
3.8166e-06 JED
period 808.9772463002346
2.21
4.6756e-07
1.28e-09
d
yr
n .4450063356496354 2.572e-10 deg/d
Q 2.561274660683754 9.8689e-10 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -6.118019372650656E-15 1.308E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      539  
   # delay obs. used      8  
   # Doppler obs. used      4  
   data-arc span      24037 days (65.81 yr)  
   first obs. used      1950-02-23  
   last obs. used      2015-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52327  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:08:56  

Additional Information
 Earth MOID = .0392097 au 
 Jupiter MOID = 2.47582 au 
 T_jup = 4.025 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1 mag n/a MPO244437  
rotation period rot_per 2.1216 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2001) http://www.asu.cas.cz/~ppravec/neo.htm]
[Busch, M.W.; Giorgini, J.D.; Ostro, S.J.; Benner, L.A.M.; et al. (2007) Icarus 190, 608-621.]

29075 (1950 DA)          Discovered 1950-Feb-22 by Wirtanen, C. A. at Mt. Hamilton
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1950 DA = 2000 YK66 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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