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

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08639940614030762 5.1821e-08  
a 2.776775651650059 1.4824e-08 au
q 2.536863884362628 1.4246e-07 au
i .5870249097362079 4.5555e-06 deg
node 128.2556759230589 0.00043928 deg
peri 241.570316651798 0.00043991 deg
M 154.4456023092006 2.3948e-05 deg
tp 2458275.425450207220
(2018-Jun-05.92545021)
0.00011131 TDB
period 1690.089157752929
4.63
1.3534e-05
3.705e-08
d
yr
n .2130065140933989 1.7057e-09 deg/d
Q 3.01668741893749 1.6105e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1089  
   data-arc span      10821 days (29.63 yr)  
   first obs. used      1990-10-22  
   last obs. used      2020-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54673  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:44:46  

Additional Information
 Earth MOID = 1.53617 au 
 Jupiter MOID = 2.41497 au 
 T_jup = 3.329 
[ 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 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 ]
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