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72617 (2001 FY21)
Classification: Main-belt Asteroid          SPK-ID: 2072617
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08895097273031526 4.988e-08  
a 3.074189231078893 1.9356e-08 au
q 2.800737108617365 1.5302e-07 au
i 11.7784764516211 4.8168e-06 deg
node 50.98748628931759 1.8256e-05 deg
peri 300.2070768519453 2.9584e-05 deg
M 97.93439554117673 2.2943e-05 deg
tp 2458664.916648479041
(2019-Jun-30.41664848)
0.00012597 TDB
period 1968.767004504335
5.39
1.8594e-05
5.091e-08
d
yr
n .1828555634955062 1.727e-09 deg/d
Q 3.34764135354042 2.1078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1383  
   data-arc span      8134 days (22.27 yr)  
   first obs. used      1998-11-24  
   last obs. used      2021-03-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48194  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:03:05  

Additional Information
 Earth MOID = 1.81788 au 
 Jupiter MOID = 2.07909 au 
 T_jup = 3.192 
[ 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 13.85   n/a E2021B10  
diameter diameter 6.385 km 0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.189   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72617 (2001 FY21)          Discovered 2001-Mar-21 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 FY21 = 2000 EK156 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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