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1800 Aguilar (1950 RJ)
Classification: Main-belt Asteroid          SPK-ID: 2001800
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .135243067447425 2.8034e-08  
a 2.357536878510435 5.7062e-09 au
q 2.038696359440257 6.5552e-08 au
i 5.79024622218912 2.9145e-06 deg
node 124.1781735606854 3.4852e-05 deg
peri 214.6796086375908 3.7196e-05 deg
M 101.2881119596681 1.2392e-05 deg
tp 2458628.500681285100
(2019-May-25.00068129)
4.5629e-05 TDB
period 1322.166561764815
3.62
4.8002e-06
1.314e-08
d
yr
n .2722803695167388 9.8854e-10 deg/d
Q 2.676377397580614 6.4779e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2874  
   data-arc span      25418 days (69.59 yr)  
   first obs. used      1950-09-12  
   last obs. used      2020-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44585  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:30:22  

Additional Information
 Earth MOID = 1.03225 au 
 Jupiter MOID = 2.68013 au 
 T_jup = 3.534 
[ 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 12.8   n/a MPO259348  
diameter diameter 7.384 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.478 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Higgins, D.J. (2011) http://www.david-higgins.com/Astronomy/asteroid/lightcurves.htm]
geometric albedo albedo 0.295   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1800 Aguilar (1950 RJ)          Discovered 1950-Sep-12 by Itzigsohn, M. at La Plata
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1950 RJ = 1952 BJ = 1972 XP2 = 1976 YU7 = 1977 AE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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