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27168 (1999 AN21)
Classification: Main-belt Asteroid          SPK-ID: 2027168
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 59 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03323715664373082 4.5617e-08  
a 2.735451548057 1.2896e-08 au
q 2.644532916462893 1.297e-07 au
i 6.334909461754738 4.8379e-06 deg
node 164.42553669 3.2295e-05 deg
peri 200.2203013915055 6.9133e-05 deg
M 16.79611252247349 5.9827e-05 deg
tp 2458923.401089391495
(2020-Mar-14.90108939)
0.00027464 TDB
period 1652.501897800707
4.52
1.1686e-05
3.199e-08
d
yr
n .2178514895983595 1.5406e-09 deg/d
Q 2.826370179651107 1.3325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1429  
   data-arc span      8064 days (22.08 yr)  
   first obs. used      1997-10-29  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53209  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:58:29  

Additional Information
 Earth MOID = 1.64158 au 
 Jupiter MOID = 2.31179 au 
 T_jup = 3.343 
[ 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 14.3   n/a MPO351014  
diameter diameter 3.390 km 0.404 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.352   0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27168 (1999 AN21)          Discovered 1999-Jan-14 by Korlevic, K. at Visnjan
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 AN21 = 2000 HT40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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