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35680 (1999 AS21)
Classification: Main-belt Asteroid          SPK-ID: 2035680
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05472291353607585 4.167e-08  
a 2.197856996722176 7.498e-09 au
q 2.077583858325889 9.2446e-08 au
i 6.583238691027239 3.0443e-06 deg
node 135.2749758213946 3.8868e-05 deg
peri 296.1981748892405 4.9849e-05 deg
M 135.8886859959627 3.147e-05 deg
tp 2458151.260047345716
(2018-Feb-01.76004735)
0.00010351 TDB
period 1190.13869160783
3.26
6.0903e-06
1.667e-08
d
yr
n .3024857544238432 1.5479e-09 deg/d
Q 2.318130135118463 7.9084e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1417  
   data-arc span      10144 days (27.77 yr)  
   first obs. used      1991-11-09  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51828  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:56:03  

Additional Information
 Earth MOID = 1.102 au 
 Jupiter MOID = 2.79858 au 
 T_jup = 3.657 
[ 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 15.3   n/a MPO337551  
diameter diameter 1.944 km 0.531 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.355   0.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35680 (1999 AS21)          Discovered 1999-Jan-15 by Korlevic, K. at Visnjan
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 AS21 = 1991 VN6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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