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160581 (1999 KH12)
Classification: Outer Main-belt Asteroid          SPK-ID: 2160581
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216677916446513 3.9563e-08  
a 3.207145592135972 2.5652e-08 au
q 2.816939270457911 1.299e-07 au
i 4.517606865523754 4.3503e-06 deg
node 102.5047620854046 6.6787e-05 deg
peri 136.6407537056014 7.0108e-05 deg
M 279.4949770334011 2.2214e-05 deg
tp 2459669.634009437636
(2022-Mar-31.13400944)
0.0001312 TDB
period 2097.859700848976
5.74
2.5169e-05
6.891e-08
d
yr
n .1716034679794425 2.0588e-09 deg/d
Q 3.597351913814034 2.8773e-08 au
  Orbit Determination Parameters
   # obs. used (total)      667  
   data-arc span      8407 days (23.02 yr)  
   first obs. used      1998-03-04  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59396  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:01:57  

Additional Information
 Earth MOID = 1.80535 au 
 Jupiter MOID = 1.42072 au 
 T_jup = 3.176 
[ 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 14.9   n/a MPO532893  
diameter diameter 5.250 km 0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.91 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.077   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160581 (1999 KH12)          Discovered 1999-May-18 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 1999 KH12 = 2004 DV40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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