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85855 (1999 AN15)
Classification: Main-belt Asteroid          SPK-ID: 2085855
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08720906671939184 3.9935e-08  
a 2.347560536646274 9.6085e-09 au
q 2.142831973178078 9.4385e-08 au
i 1.781110794746504 3.8105e-06 deg
node 315.0291270762278 0.00015267 deg
peri 218.1504557857375 0.0001546 deg
M 181.9314667806744 2.5655e-05 deg
tp 2459250.342794539151
(2021-Feb-04.84279454)
9.5067e-05 TDB
period 1313.782967740562
3.60
8.0659e-06
2.208e-08
d
yr
n .2740178620363197 1.6823e-09 deg/d
Q 2.552289100114471 1.0446e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1059  
   data-arc span      7651 days (20.95 yr)  
   first obs. used      1998-12-17  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55258  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:03:46  

Additional Information
 Earth MOID = 1.14859 au 
 Jupiter MOID = 2.41599 au 
 T_jup = 3.554 
[ 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 15.4   n/a MPO502667  
diameter diameter 2.047 km 0.580 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.384   0.251 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85855 (1999 AN15)          Discovered 1999-Jan-09 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1999 AN15 = 2001 TO100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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