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385125 (2013 AH121)
Classification: Main-belt Asteroid          SPK-ID: 2385125
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1403052903658186 5.9156e-08  
a 3.10370994459969 6.6434e-08 au
q 2.668243019611352 1.7855e-07 au
i 7.017041616109937 6.5398e-06 deg
node 113.0091085603485 4.9674e-05 deg
peri 177.5561772134199 5.54e-05 deg
M 12.88940610101744 2.8487e-05 deg
tp 2459128.992676180941
(2020-Oct-06.49267618)
0.00015661 TDB
period 1997.193382930896
5.47
6.4124e-05
1.756e-07
d
yr
n .1802529505038202 5.7874e-09 deg/d
Q 3.539176869588029 7.5756e-08 au
  Orbit Determination Parameters
   # obs. used (total)      239  
   data-arc span      5645 days (15.46 yr)  
   first obs. used      2004-08-22  
   last obs. used      2020-02-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59602  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:04:13  

Additional Information
 Earth MOID = 1.65005 au 
 Jupiter MOID = 1.64568 au 
 T_jup = 3.194 
[ 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 15.86   n/a E2021B25  
diameter diameter 3.396 km 0.608 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 0.95 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.067   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

385125 (2013 AH121)          Discovered 2008-Feb-09 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-01-21

[ show close-approach data ]
Alternate Designations
 2013 AH121 = 2010 MT76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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