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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
35211 (1994 RR2)
Classification: Main-belt Asteroid          SPK-ID: 2035211
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02329372475518839 3.6545e-08  
a 3.001406197939377 2.3132e-08 au
q 2.931492268086061 1.1992e-07 au
i 3.160362990122428 4.6223e-06 deg
node 221.8814576475128 8.3247e-05 deg
peri 38.99726978037788 0.0001426 deg
M 329.9991650876303 0.00011569 deg
tp 2458758.776496985974
(2019-Oct-02.27649699)
0.0006103 TDB
period 1899.26510650067
5.20
2.1957e-05
6.011e-08
d
yr
n .1895469983457378 2.1913e-09 deg/d
Q 3.071320127792693 2.3671e-08 au
  Orbit Determination Parameters
   # obs. used (total)      512  
   data-arc span      9015 days (24.68 yr)  
   first obs. used      1994-09-02  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59639  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:53:42  

Additional Information
 Earth MOID = 1.91659 au 
 Jupiter MOID = 1.92522 au 
 T_jup = 3.250 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456704.5 (2014-Feb-16.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .021664424335241 3.6581e-08  
q 2.934955332941571 1.197e-07 au
tp 2456872.936623073854
(2014-Aug-03.43662307)
0.000656 TDB
node 221.9034622169085 8.3261e-05 deg
peri 41.32591344768467 0.00014966 deg
i 3.159998181395689 4.6238e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      512  
   data-arc span      9015 days (24.68 yr)  
   first obs. used      1994-09-02  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59639  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:53:42  

Additional Information
 Jupiter MOID = 1.92522 au 
 T_jup = 3.250 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.338147120039792E-15 -4.308343806793019E-15 3.185366240621318E-13 -1.062711846511379E-15 4.272401965267403E-14 4.937564323175153E-17
q -4.308343806793019E-15 1.432774542081366E-14 -1.722047640265458E-12 5.913866255059066E-15 -2.806509492948288E-13 -9.32083968538135E-17
tp 3.185366240621318E-13 -1.722047640265458E-12 4.303366963592515E-7 -1.230315908348178E-10 8.161046568981567E-8 3.066565047561192E-12
node -1.062711846511379E-15 5.913866255059066E-15 -1.230315908348178E-10 6.932439454965112E-9 -6.944925804118504E-9 -1.207283391812443E-10
peri 4.272401965267403E-14 -2.806509492948288E-13 8.161046568981567E-8 -6.944925804118504E-9 2.239795942486739E-8 1.211202533512848E-10
i 4.937564323175153E-17 -9.32083968538135E-17 3.066565047561192E-12 -1.207283391812443E-10 1.211202533512848E-10 2.137965166346994E-11

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 15.4   n/a MPO436011  
diameter diameter 5.405 km 0.295 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.029   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35211 (1994 RR2)          Discovered 1994-Sep-02 by Spacewatch at Kitt Peak
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 RR2 = 1997 EY11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-16 13:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin