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21147 (1993 FV80)
Classification: Main-belt Asteroid          SPK-ID: 2021147
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844101388422514 4.6525e-08  
a 2.679122792207216 1.3734e-08 au
q 2.185065386120843 1.3191e-07 au
i 2.57801585266956 4.1025e-06 deg
node 45.34507662504703 9.1155e-05 deg
peri 281.8765442164431 9.1855e-05 deg
M 27.83803723750613 1.1424e-05 deg
tp 2459272.642170201558
(2021-Feb-27.14217020)
5.0502e-05 TDB
period 1601.722791984947
4.39
1.2316e-05
3.372e-08
d
yr
n .2247579929569881 1.7283e-09 deg/d
Q 3.173180198293589 1.6267e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1154  
   data-arc span      10349 days (28.33 yr)  
   first obs. used      1993-03-18  
   last obs. used      2021-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54124  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:58:00  

Additional Information
 Earth MOID = 1.17466 au 
 Jupiter MOID = 2.1733 au 
 T_jup = 3.351 
[ 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 14.72   n/a E2021B10  
diameter diameter 3.776 km 0.999 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.196   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21147 (1993 FV80)          Discovered 1993-Mar-18 by UESAC at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 FV80 = 1998 HT148 = 1998 LK4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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