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 ]  
18847 (1999 RJ32)
Classification: Main-belt Asteroid          SPK-ID: 2018847
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0872301929410544 2.0577e-08  
a 3.163744415886724 1.5459e-08 au
q 2.887770380072742 6.9054e-08 au
i 8.112746208917988 8.8613e-07 deg
node 356.6706269009418 1.05e-05 deg
peri 353.2790677182007 1.5765e-05 deg
M 288.0714345281095 1.1062e-05 deg
tp 2459611.176084274319
(2022-Jan-31.67608427)
6.3297e-05 TDB
period 2055.419698263436
5.63
1.5065e-05
4.125e-08
d
yr
n .1751467110605943 1.2837e-09 deg/d
Q 3.439718451700706 1.6807e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1944  
   data-arc span      13851 days (37.92 yr)  
   first obs. used      1982-09-16  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4868  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:39:37  

Additional Information
 Earth MOID = 1.88023 au 
 Jupiter MOID = 1.97821 au 
 T_jup = 3.183 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.72   n/a MPCxxxxx  
diameter diameter 13.942 km 0.225 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.063   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

18847 (1999 RJ32)          Discovered 1999-Sep-09 by Korlevic, K. at Visnjan
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RJ32 = 1982 SN5 = 1991 HZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-17 22:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin