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379981 (2012 TK108)
Classification: Main-belt Asteroid          SPK-ID: 2379981
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1330018897117799 7.0213e-08  
a 3.09589927851475 6.5826e-08 au
q 2.684138824114952 2.5439e-07 au
i 12.67957635341238 1.5614e-05 deg
node 205.9625572808303 3.4714e-05 deg
peri 60.28449383727212 9.3888e-05 deg
M 212.4600795250596 9.1855e-05 deg
tp 2459815.928160555827
(2022-Aug-24.42816056)
0.00052746 TDB
period 1989.659048582433
5.45
6.3457e-05
1.737e-07
d
yr
n .1809355227251062 5.7706e-09 deg/d
Q 3.507659732914548 7.4581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      7209 days (19.74 yr)  
   first obs. used      2000-05-01  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:15:37  

Additional Information
 Earth MOID = 1.69653 au 
 Jupiter MOID = 1.62051 au 
 T_jup = 3.172 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456837.5 (2014-Jun-29.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .136249996359488 7.049e-08  
q 2.671728554641029 2.5764e-07 au
tp 2457820.998245165313
(2017-Mar-08.49824517)
0.00046205 TDB
node 206.2372406151937 3.492e-05 deg
peri 59.41326980780415 9.096e-05 deg
i 12.65963698847743 1.5588e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      7209 days (19.74 yr)  
   first obs. used      2000-05-01  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:15:37  

Additional Information
 Jupiter MOID = 1.62051 au 
 T_jup = 3.172 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.968774127867124E-15 -1.785135557339434E-14 -2.124902994191869E-11 -1.884849037132198E-14 -3.847746625510053E-12 -1.20375173162588E-14
q -1.785135557339434E-14 6.638091447164824E-14 8.60606212285186E-11 8.66952522569656E-14 1.542791211722103E-11 4.240531440447859E-14
tp -2.124902994191869E-11 8.60606212285186E-11 2.134880158952456E-7 2.679138270108604E-10 3.884353762828532E-8 1.248919354086028E-11
node -1.884849037132198E-14 8.66952522569656E-14 2.679138270108604E-10 1.219376668096328E-9 -1.138376031199153E-9 -3.25390318075088E-10
peri -3.847746625510053E-12 1.542791211722103E-11 3.884353762828532E-8 -1.138376031199153E-9 8.273775438010532E-9 3.175783893461795E-10
i -1.20375173162588E-14 4.240531440447859E-14 1.248919354086028E-11 -3.25390318075088E-10 3.175783893461795E-10 2.429722413986113E-10

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 16.0   n/a MPO471897  
diameter diameter 4.622 km 1.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.109   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

379981 (2012 TK108)          Discovered 2007-Oct-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2012 TK108 = 2007 VA336 = 2010 JO22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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