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 ]  
129852 (1999 RN91)
Classification: Main-belt Asteroid          SPK-ID: 2129852
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2060902844553486 4.4053e-08  
a 2.381267749882304 1.1588e-08 au
q 1.890511601944712 1.0392e-07 au
i 2.654565248624814 4.2995e-06 deg
node 144.8063720532099 0.00010135 deg
peri 264.1989635736974 0.00010194 deg
M 194.108220310707 1.167e-05 deg
tp 2459618.990648820298
(2022-Feb-08.49064882)
4.6117e-05 TDB
period 1342.18002840365
3.67
9.7974e-06
2.682e-08
d
yr
n .2682203522490001 1.9579e-09 deg/d
Q 2.872023897819895 1.3977e-08 au
  Orbit Determination Parameters
   # obs. used (total)      602  
   data-arc span      7541 days (20.65 yr)  
   first obs. used      1999-09-04  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50324  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:47:37  

Additional Information
 Earth MOID = .902925 au 
 Jupiter MOID = 2.51246 au 
 T_jup = 3.508 
[ 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 16.2   n/a MPO469355  
diameter diameter 1.996 km 0.461 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.177   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129852 (1999 RN91)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
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-31 02:34 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin