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 ]  
59884 (1999 RW123)
Classification: Main-belt Asteroid          SPK-ID: 2059884
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0863994061000567 5.1821e-08  
a 2.776775652030224 1.4887e-08 au
q 2.536863884821715 1.4247e-07 au
i .5870250234522171 4.5655e-06 deg
node 128.2556625698866 0.0004407 deg
peri 241.5703293710686 0.00044133 deg
M 154.4456027588022 2.3999e-05 deg
tp 2458275.425447947576
(2018-Jun-05.92544795)
0.00011158 TDB
period 1690.089158100011
4.63
1.3591e-05
3.721e-08
d
yr
n .2130065140496552 1.713e-09 deg/d
Q 3.016687419238734 1.6173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1086  
   data-arc span      10770 days (29.49 yr)  
   first obs. used      1990-10-22  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54657  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:50:26  

Additional Information
 Earth MOID = 1.53617 au 
 Jupiter MOID = 2.41497 au 
 T_jup = 3.329 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456606.5 (2013-Nov-10.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0836703145833728 5.1531e-08  
q 2.544517154299496 1.4123e-07 au
tp 2456577.942635710077
(2013-Oct-12.44263571)
0.00011478 TDB
node 128.0978790554647 0.00044256 deg
peri 240.531903664543 0.00044324 deg
i .5844405880757867 4.5632e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1086  
   data-arc span      10770 days (29.49 yr)  
   first obs. used      1990-10-22  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54657  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:50:26  

Additional Information
 Jupiter MOID = 2.41497 au 
 T_jup = 3.329 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.655451551124455E-15 -7.244719228312149E-15 -5.616379208756303E-13 1.6960836300727E-15 -2.181382141405288E-13 -2.277992630418998E-16
q -7.244719228312149E-15 1.994564352798499E-14 1.650835139836015E-12 -2.721617055588804E-15 6.178641265495089E-13 6.510174421639129E-16
tp -5.616379208756303E-13 1.650835139836015E-12 1.317380466893743E-8 -8.06113600457197E-12 2.828124642434385E-9 -1.993745950807887E-13
node 1.6960836300727E-15 -2.721617055588804E-15 -8.06113600457197E-12 1.958606858322314E-7 -1.958517941219783E-7 4.692818220945707E-10
peri -2.181382141405288E-13 6.178641265495089E-13 2.828124642434385E-9 -1.958517941219783E-7 1.964601661346205E-7 -4.692903649039126E-10
i -2.277992630418998E-16 6.510174421639129E-16 -1.993745950807887E-13 4.692818220945707E-10 -4.692903649039126E-10 2.082264828440968E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO468503  
diameter diameter 6.679 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.698 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.030   0.001 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59884 (1999 RW123)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RW123 = 1999 TL323 = 2001 AF9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-24 08:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin