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20596 (1999 RX188)
Classification: Main-belt Asteroid          SPK-ID: 2020596
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1692261064535713 3.4808e-08  
a 2.742073263353983 1.3505e-08 au
q 2.27804288138615 9.2964e-08 au
i 13.10288126068184 4.7373e-06 deg
node 165.7261951900368 1.7036e-05 deg
peri 299.454827527022 2.3715e-05 deg
M 107.5390030370258 1.8847e-05 deg
tp 2458505.072039407108
(2019-Jan-21.57203941)
8.4729e-05 TDB
period 1658.505851612124
4.54
1.2252e-05
3.354e-08
d
yr
n .2170628458440878 1.6036e-09 deg/d
Q 3.206103645321817 1.579e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1133  
   data-arc span      23528 days (64.42 yr)  
   first obs. used      1956-03-16  
   last obs. used      2020-08-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55783  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:01:52  

Additional Information
 Earth MOID = 1.32567 au 
 Jupiter MOID = 2.00088 au 
 T_jup = 3.291 
[ 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 14.5   n/a MPO467945  
diameter diameter 3.552 km 0.263 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 18.386 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 0.222   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20596 (1999 RX188)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RX188 = 1990 RO14 = 1990 SC23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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