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 ]  
66539 (1999 RX117)
Classification: Main-belt Asteroid          SPK-ID: 2066539
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2431797425526129 3.3619e-08  
a 2.570697757840148 1.4492e-08 au
q 1.945556138908001 8.752e-08 au
i 7.398037374919094 4.9978e-06 deg
node 263.5085129962577 3.3156e-05 deg
peri 61.59902940587525 3.5677e-05 deg
M 13.72692004562519 1.6153e-05 deg
tp 2458943.095550256757
(2020-Apr-03.59555026)
6.7275e-05 TDB
period 1505.479877414582
4.12
1.273e-05
3.485e-08
d
yr
n .2391264110538904 2.022e-09 deg/d
Q 3.195839376772294 1.8016e-08 au
  Orbit Determination Parameters
   # obs. used (total)      772  
   data-arc span      8162 days (22.35 yr)  
   first obs. used      1998-03-31  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52094  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 05:53:56  

Additional Information
 Earth MOID = .946319 au 
 Jupiter MOID = 2.18844 au 
 T_jup = 3.376 
[ 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 14.9   n/a MPO436246  

66539 (1999 RX117)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1942-Jul-02 07:49 00:01 Amphi 0.0400666336242103 0.0400521710926806 0.0400810973846206 6.21662744266159 6.21662741958162 2430542.825601728 1.2319811479073 801.910569621273 54.3523813950141 26.0104761566711 48813.0398530787 T 18 CATAB v2.0f-lin.ifort 2020-Aug-25 05:54:14 2020-Aug-25 05:54
2174-Apr-25 00:56 00:08 Inter 0.0315420823907904 0.0315328643058538 0.0315513306986614 3.38854007658037 3.38853993961344 2515211.539212182 7.78035768079499 1611.42698086172 42.6039043554136 73.4865126357815 106059.249418608 T 18 CATAB v2.0f-lin.ifort 2020-Aug-25 05:54:14 2020-Aug-25 05:54
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-25 23:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin