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 ]  
102171 (1999 RH230)
Classification: Main-belt Asteroid          SPK-ID: 2102171
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1913085386464957 3.6954e-08  
a 2.266770144379851 9.5309e-09 au
q 1.833117660611036 8.513e-08 au
i 6.646052567418139 4.3417e-06 deg
node 109.6202437977068 3.9792e-05 deg
peri 209.0705258921046 4.1521e-05 deg
M 97.59879043140319 1.2785e-05 deg
tp 2458862.550671887250
(2020-Jan-14.05067189)		 4.3557e-05 TDB
period 1246.549855616288
3.41		 7.8619e-06
2.152e-08		 d
yr
n .2887971133910386 1.8214e-09 deg/d
Q 2.700422628148667 1.1354e-08 au
   Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      7816 days (21.40 yr)  
   first obs. used      1999-08-13  
   last obs. used      2021-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60331  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:30:44  

Additional Information
 Earth MOID = .820884 au 
 Jupiter MOID = 2.59654 au 
 T_jup = 3.582 
[ 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 16.6   n/a MPO436478  

102171 (1999 RH230)          Discovered 1999-Sep-08 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RH230 = 2000 YL31 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-08 20:27 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin