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72615 (2001 FK21)
Classification: Main-belt Asteroid          SPK-ID: 2072615
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .181911564928419 5.2893e-08  
a 2.684644681027669 1.694e-08 au
q 2.196276765825169 1.497e-07 au
i 14.28350570543054 5.1458e-06 deg
node 64.22945304414077 1.513e-05 deg
peri 321.823607174834 1.812e-05 deg
M 350.7488595618308 9.965e-06 deg
tp 2459241.787769443007
(2021-Jan-27.28776944)
4.4526e-05 TDB
period 1606.677263070935
4.40
1.5207e-05
4.163e-08
d
yr
n .2240649122723697 2.1207e-09 deg/d
Q 3.173012596230169 2.0021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1598  
   data-arc span      8685 days (23.78 yr)  
   first obs. used      1997-05-04  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45034  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:03:04  

Additional Information
 Earth MOID = 1.21914 au 
 Jupiter MOID = 2.29724 au 
 T_jup = 3.307 
[ 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 13.77   n/a E2021B10  
diameter diameter 5.470 km 0.256 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.178   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72615 (2001 FK21)          Discovered 2001-Mar-21 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 FK21 = 1997 LR10 = 1999 XP240 = 2019 GM24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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