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JPL Small-Body Database Browser
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26209 (1997 RD1)
Classification: Mars-crossing Asteroid          SPK-ID: 2026209
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3972239920103751 4.3176e-08  
a 2.671501719612067 6.4705e-09 au
q 1.61031714188518 1.1303e-07 au
i 13.48878284816183 5.6683e-06 deg
node 170.0085481543488 1.9291e-05 deg
peri 162.3061635896992 2.0707e-05 deg
M 347.8972617532315 7.7301e-06 deg
tp 2458654.118264634148
(2019-Jun-19.61826463)
3.44e-05 TDB
period 1594.8932278567
4.37
5.7943e-06
1.586e-08
d
yr
n .2257204392821873 8.2005e-10 deg/d
Q 3.732686297338953 9.0407e-09 au
  Orbit Determination Parameters
   # obs. used (total)      793  
   data-arc span      12821 days (35.10 yr)  
   first obs. used      1984-09-24  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53723  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:51:48  

Additional Information
 Earth MOID = .605364 au 
 Jupiter MOID = 1.70726 au 
 T_jup = 3.227 
[ 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 15.6   n/a MPO435945  
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

26209 (1997 RD1)          Discovered 1997-Sep-02 by JPL/GEODSS NEAT at Haleakala
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 RD1 = 1984 SM7 = 2001 KU65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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