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26918 (1996 RA16)
Classification: Main-belt Asteroid          SPK-ID: 2026918
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04151798637235741 4.0305e-08  
a 3.099749680564539 1.9081e-08 au
q 2.971054315569142 1.2525e-07 au
i .6733591910205671 3.8762e-06 deg
node 289.9209630023719 0.00044979 deg
peri 26.59225745987809 0.0004547 deg
M 159.1666982761756 6.8685e-05 deg
tp 2458119.170982393725
(2017-Dec-31.67098239)
0.00037976 TDB
period 1993.372041856006
5.46
1.8406e-05
5.039e-08
d
yr
n .1805984996482684 1.6675e-09 deg/d
Q 3.228445045559937 1.9873e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1314  
   data-arc span      8541 days (23.38 yr)  
   first obs. used      1996-09-13  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54191  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:54:02  

Additional Information
 Earth MOID = 1.95733 au 
 Jupiter MOID = 1.90172 au 
 T_jup = 3.221 
[ 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 14.2   n/a MPO502359  
diameter diameter 4.300 km 1.479 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.69 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.263   0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26918 (1996 RA16)          Discovered 1996-Sep-13 by Spacewatch at Kitt Peak
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 RA16 = 1999 EN7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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