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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1351047418428089 2.9379e-08  
a 2.357023007637868 5.9192e-09 au
q 2.038578022673392 6.9131e-08 au
i 5.790115476743283 3.2096e-06 deg
node 124.181834416043 3.5157e-05 deg
peri 214.5894987395852 3.7505e-05 deg
M 352.4441400024439 1.2668e-05 deg
tp 2458628.241220295490
(2019-May-24.74122030)
4.6506e-05 TDB
period 1321.734297565935
3.62
4.9789e-06
1.363e-08
d
yr
n .2723694169569216 1.026e-09 deg/d
Q 2.675467992602342 6.7189e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2621  
   data-arc span      25251 days (69.13 yr)  
   first obs. used      1950-09-12  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45549  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:09:02  

Additional Information
 Earth MOID = 1.03119 au 
 Jupiter MOID = 2.67789 au 
 T_jup = 3.535 
[ 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-January); 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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