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102179 (1999 RX237)
Classification: Main-belt Asteroid          SPK-ID: 2102179
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2512018553182472 3.7581e-08  
a 2.428437166554076 8.1828e-09 au
q 1.818409244791905 9.2426e-08 au
i 9.400798209984133 3.9673e-06 deg
node 124.1389537079141 2.7032e-05 deg
peri 274.0582653341316 2.8421e-05 deg
M 198.8694321209137 7.8507e-06 deg
tp 2459819.177284014504
(2022-Aug-27.67728401)
3.1045e-05 TDB
period 1382.256794454762
3.78
6.9864e-06
1.913e-08
d
yr
n .260443646538199 1.3164e-09 deg/d
Q 3.038465088316247 1.0238e-08 au
  Orbit Determination Parameters
   # obs. used (total)      882  
   data-arc span      8468 days (23.18 yr)  
   first obs. used      1997-03-12  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46865  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:56:17  

Additional Information
 Earth MOID = .853828 au 
 Jupiter MOID = 2.45436 au 
 T_jup = 3.447 
[ 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 15.74   n/a E2021B55  
diameter diameter 4.075 km 0.399 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.21456 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.067   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102179 (1999 RX237)          Discovered 1999-Sep-08 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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