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16680 Minamitanemachi (1994 EP3)
Classification: Main-belt Asteroid          SPK-ID: 2016680
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1768582037976428 4.8329e-09  
a 2.67678833906375 1.07e-08 au
q 2.20337636147046 9.7486e-09 au
i 14.1230479108856 5.3929e-07 deg
node 21.39421921420798 8.7219e-07 deg
peri 113.7437579236188 5.5219e-06 deg
M 74.11911259641106 5.2479e-06 deg
tp 2458871.157949840172
(2020-Jan-22.65794984)
2.2652e-05 TDB
period 1599.629756809569
4.38
9.5913e-06
2.626e-08
d
yr
n .2250520774994916 1.3494e-09 deg/d
Q 3.15020031665704 1.2592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2044  
   data-arc span      25659 days (70.25 yr)  
   first obs. used      1950-04-12  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4079  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:38:38  

Additional Information
 Earth MOID = 1.25711 au 
 Jupiter MOID = 1.97615 au 
 T_jup = 3.313 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457356.5 (2015-Nov-30.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .177823996675215 4.8554e-09  
q 2.201762082292162 9.9189e-09 au
tp 2457272.686700706158
(2015-Sep-07.18670071)
2.163e-05 TDB
node 21.40686745286924 8.7233e-07 deg
peri 114.0945405508482 5.4771e-06 deg
i 14.12190254342613 5.3912e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2044  
   data-arc span      25659 days (70.25 yr)  
   first obs. used      1950-04-12  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4079  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:38:38  

Additional Information
 Jupiter MOID = 1.97615 au 
 T_jup = 3.313 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.357529494066295E-17 -3.546072026587056E-17 2.636504920271618E-14 5.347780548577212E-16 5.70306332417385E-15 1.517745348792462E-16
q -3.546072026587056E-17 9.838465529246978E-17 -9.681828285809052E-14 -1.430768017940725E-15 -2.209138266109592E-14 -3.210296293660157E-16
tp 2.636504920271618E-14 -9.681828285809052E-14 4.678565694772006E-10 4.256450887488874E-12 1.17362244016404E-10 -1.375842205446019E-12
node 5.347780548577212E-16 -1.430768017940725E-15 4.256450887488874E-12 7.60958335795783E-13 5.393755998127663E-13 2.991701615636771E-13
peri 5.70306332417385E-15 -2.209138266109592E-14 1.17362244016404E-10 5.393755998127663E-13 2.999885944872576E-11 -6.413480995609582E-13
i 1.517745348792462E-16 -3.210296293660157E-16 -1.375842205446019E-12 2.991701615636771E-13 -6.413480995609582E-13 2.906453422451778E-13

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 13.28   n/a E2021B10  
diameter diameter 8.036 km 2.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.129   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

16680 Minamitanemachi           Discovered 1994 Mar. 14 by K. Endate and K. Watanabe at Kitami.
Minamitanemachi is a town located in the southern part of Tanegashima Island, Kagoshima. It is well-known as the town where a gun was introduced to Japan for the first time in 1543. It is also known for the Tanegashima Space Center.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-01-12Last Updated: 2017-01-17

[ show close-approach data ]
Alternate Designations
 1994 EP3 = 1979 WZ2 = 1998 HU48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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