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74681 (1999 RX115)
Classification: Main-belt Asteroid          SPK-ID: 2074681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1914493371117807 3.7559e-08  
a 2.285721553795348 8.6854e-09 au
q 1.84812167749912 8.8222e-08 au
i 4.164209232397056 4.4747e-06 deg
node 163.4856515469455 5.1078e-05 deg
peri 149.8446290450227 5.2247e-05 deg
M 256.734785858064 1.1951e-05 deg
tp 2458962.563680192090
(2020-Apr-23.06368019)
4.2927e-05 TDB
period 1262.215218863525
3.46
7.1944e-06
1.97e-08
d
yr
n .2852128500907612 1.6257e-09 deg/d
Q 2.723321430091577 1.0348e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1033  
   data-arc span      10305 days (28.21 yr)  
   first obs. used      1991-02-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57555  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:41:50  

Additional Information
 Earth MOID = .834864 au 
 Jupiter MOID = 2.55915 au 
 T_jup = 3.574 
[ 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 15.6   n/a MPO432299  
diameter diameter 3.324 km 0.782 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 3.908 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.059   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

74681 (1999 RX115)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RX115 = 2002 JJ26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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