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 ]  
18046 (1999 RN116)
Classification: Jupiter Trojan          SPK-ID: 2018046
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05852644750958436 2.43e-08  
a 5.204314150571376 8.8998e-08 au
q 4.899724131614573 1.771e-07 au
i 33.29967143594275 4.4136e-07 deg
node 164.6590626799091 2.85e-06 deg
peri 152.4974854602829 2.2584e-05 deg
M 283.2714666854712 2.6638e-05 deg
tp 2460124.768344544665
(2023-Jun-29.26834454)
0.00033531 TDB
period 4336.543260537927
11.87
0.00011124
3.046e-07
d
yr
n .08301542919586688 2.1295e-09 deg/d
Q 5.508904169528178 9.4207e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1840  
   data-arc span      15422 days (42.22 yr)  
   first obs. used      1978-12-30  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4144  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:39:50  

Additional Information
 Earth MOID = 3.90632 au 
 Jupiter MOID = .029292 au 
 T_jup = 2.669 
[ 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 10.52   n/a E2021B10  
diameter diameter 42.736 km 0.598 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 36.00 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[French, L.M.; Stephens, R.D.; Coley, D.R.; Wasserman, L.H.; et al. (2013) Minor Planet Bull. 40, 198-203.]
geometric albedo albedo 0.073   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

18046 (1999 RN116)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-17 22:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin