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85854 (1999 AE13)
Classification: Main-belt Asteroid          SPK-ID: 2085854
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1772083629184697 3.3581e-08  
a 2.599468839817049 1.3526e-08 au
q 2.138821222255495 8.4753e-08 au
i 6.368631366215793 4.5627e-06 deg
node 289.4617372379374 5.6477e-05 deg
peri 168.7468018314181 6.1727e-05 deg
M 318.2958275031797 2.5046e-05 deg
tp 2458777.838225364266
(2019-Oct-21.33822536)
0.00010724 TDB
period 1530.824311068717
4.19
1.1948e-05
3.271e-08
d
yr
n .2351674175782279 1.8355e-09 deg/d
Q 3.060116457378602 1.5923e-08 au
  Orbit Determination Parameters
   # obs. used (total)      827  
   data-arc span      7627 days (20.88 yr)  
   first obs. used      1998-12-13  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58451  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:15:03  

Additional Information
 Earth MOID = 1.15621 au 
 Jupiter MOID = 2.10861 au 
 T_jup = 3.384 
[ 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 15.1   n/a MPO412683  
diameter diameter 2.577 km 0.720 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 46.054 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.292   0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85854 (1999 AE13)          Discovered 1999-Jan-07 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1999 AE13 = 2001 SC79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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