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 ]  
18045 (1999 RR100)
Classification: Main-belt Asteroid          SPK-ID: 2018045
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1430177242397568 5.1155e-08  
a 3.18402134495729 2.1784e-08 au
q 2.728649858270689 1.5798e-07 au
i 15.0993925528489 4.5423e-06 deg
node 282.7678471990459 2.1103e-05 deg
peri 242.6648542539052 2.7553e-05 deg
M 74.97916820153323 1.7686e-05 deg
tp 2458768.284338159922
(2019-Oct-11.78433816)
0.00010141 TDB
period 2075.211582025075
5.68
2.1297e-05
5.831e-08
d
yr
n .1734762870052496 1.7803e-09 deg/d
Q 3.639392831643891 2.4899e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1752  
   data-arc span      13010 days (35.62 yr)  
   first obs. used      1984-12-27  
   last obs. used      2020-08-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45685  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:20:59  

Additional Information
 Earth MOID = 1.77661 au 
 Jupiter MOID = 1.63956 au 
 T_jup = 3.129 
[ 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 12.39   n/a E2021B10  
diameter diameter 16.792 km 0.293 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.083   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18045 (1999 RR100)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RR100 = 1984 YJ4 = 1991 BS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-20 06:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin