Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .39728747747415 4.2025e-08  
a 2.671940937993749 6.1558e-09 au
q 1.610412262778298 1.0985e-07 au
i 13.48853251193865 4.9691e-06 deg
node 170.0002046269465 1.9134e-05 deg
peri 162.3424581534066 2.0491e-05 deg
M 78.15180882255099 7.7899e-06 deg
tp 2458654.181859159477
(2019-Jun-19.68185916)		 3.3592e-05 TDB
period 1595.286565736057
4.37		 5.513e-06
1.509e-08		 d
yr
n .2256647850813548 7.7986e-10 deg/d
Q 3.733469613209199 8.6015e-09 au
   Orbit Determination Parameters
   # obs. used (total)      876  
   data-arc span      12910 days (35.35 yr)  
   first obs. used      1984-09-24  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5141  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:40:36  

Additional Information
 Earth MOID = .606352 au 
 Jupiter MOID = 1.70993 au 
 T_jup = 3.226 
[ 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-04 23:04 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin