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

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 206 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5077372548939224 2.2486e-08  
a 1.698632072291711 1.1639e-09 au
q .8361732868315429 3.8596e-08 au
i 12.16791453193844 4.2884e-06 deg
node 356.6535303030455 6.9946e-06 deg
peri 224.6921473406103 8.3322e-06 deg
M 47.17753073899871 2.6444e-06 deg
tp 2459290.530688625928
(2021-Mar-17.03068863)
5.8432e-06 TDB
period 808.6254515039872
2.21
8.3113e-07
2.276e-09
d
yr
n .4451999369181677 4.5759e-10 deg/d
Q 2.561090857751879 1.7549e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -6.797704731828811E-15 1.241E-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)      840  
   # delay obs. used      8  
   # Doppler obs. used      4  
   data-arc span      26136 days (71.56 yr)  
   first obs. used      1950-02-23  
   last obs. used      2021-09-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49113  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-15 05:49:44  

Additional Information
 Earth MOID = .0395266 au 
 Jupiter MOID = 2.48146 au 
 T_jup = 4.026 
[ 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 17.19   n/a MPO636489  
diameter diameter 2.000 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 2.1216 h n/a LCDB (Rev. 2020-October); 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.]
geometric albedo albedo 0.070   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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