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18651 (1998 FP11)
Classification: Main-belt Asteroid          SPK-ID: 2018651
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1121240904675787 1.7734e-08  
a 2.400708344047081 7.2932e-09 au
q 2.131531104492876 4.5468e-08 au
i 5.963037707549266 8.2388e-07 deg
node 168.0067083122741 1.2584e-05 deg
peri 27.56037128154787 1.2815e-05 deg
M 34.36278244934435 1.1436e-05 deg
tp 2459070.813923434258
(2020-Aug-09.31392343)
4.2962e-05 TDB
period 1358.64980178745
3.72
6.1912e-06
1.695e-08
d
yr
n .264968941611283 1.2074e-09 deg/d
Q 2.669885583601287 8.1109e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2046  
   data-arc span      13579 days (37.18 yr)  
   first obs. used      1983-04-09  
   last obs. used      2020-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47058  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:34:16  

Additional Information
 Earth MOID = 1.13212 au 
 Jupiter MOID = 2.28537 au 
 T_jup = 3.510 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.94   n/a E2021B10  
diameter diameter 3.983 km 0.345 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.212   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18651 (1998 FP11)          Discovered 1998-Mar-22 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 FP11 = 1983 HO1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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