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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 2455259.5 (2010-Mar-04.0) TDB
Reference: JPL 134 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5073715703492357 3.2999e-08  
a 1.698913031756192 6.4208e-10 AU
q .836932858947272 5.6241e-08 AU
i 12.181570674 4.7863e-06 deg
node 356.776332840293 8.3929e-06 deg
peri 224.5234604358391 9.6389e-06 deg
M 5.379370545185029 1.7331e-06 deg
tp 2455247.413957745317
(2010-Feb-19.91395775)
3.8893e-06 JED
period 808.8260838585202
2.21
4.5853e-07
1.255e-09
d
yr
n .4450895033980768 2.5232e-10 deg/d
Q 2.560893204565112 9.6786e-10 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -6.075488931915722E-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)      528  
   # delay obs. used      8  
   # Doppler obs. used      4  
   data-arc span      23401 days (64.07 yr)  
   first obs. used      1950-02-23  
   last obs. used      2014-03-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5273  
   data source      ORB  
   producer      Davide Farnocchia  
   solution date      2014-Aug-25 08:37:39  

Additional Information
 Earth MOID = .0399511 AU 
 T_jup = 4.025 
 Nongravitational accels. using nonstandard g(r) = (1 AU/ r)^2.0 
[ 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 Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) 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 (662)
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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