Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
14028 Nakamurahiroshi (1994 TZ14)
Classification: Main-belt Asteroid          SPK-ID: 2014028
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2073171447639228 2.9566e-08  
a 2.551669114606261 7.9456e-09 au
q 2.022664359383804 7.4584e-08 au
i 5.06355505428468 4.16e-06 deg
node 182.6442689243821 4.8821e-05 deg
peri 202.1105691728827 5.064e-05 deg
M 151.8564536008005 1.4135e-05 deg
tp 2458572.491220977728
(2019-Mar-29.99122098)
5.7193e-05 TDB
period 1488.795208153248
4.08
6.9539e-06
1.904e-08
d
yr
n .2418062592010598 1.1294e-09 deg/d
Q 3.080673869828718 9.5928e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1935  
   data-arc span      9601 days (26.29 yr)  
   first obs. used      1994-10-05  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51539  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:10:45  

Additional Information
 Earth MOID = 1.02604 au 
 Jupiter MOID = 2.37535 au 
 T_jup = 3.404 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456729.5 (2014-Mar-13.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2061659245409357 2.9825e-08  
q 2.026461229273012 7.5417e-08 au
tp 2457078.828386053733
(2015-Feb-25.32838605)
5.5224e-05 TDB
node 182.6977233466008 4.8813e-05 deg
peri 201.3535522575963 5.0666e-05 deg
i 5.059447148757588 4.1697e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1935  
   data-arc span      9601 days (26.29 yr)  
   first obs. used      1994-10-05  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51539  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:10:45  

Additional Information
 Jupiter MOID = 2.37535 au 
 T_jup = 3.404 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.895495955562316E-16 -2.241370229824282E-15 -6.251991607038476E-13 -1.685687756602273E-15 -1.690454043414264E-13 2.428729013987657E-16
q -2.241370229824282E-15 5.687694209746615E-15 1.722238803268253E-12 5.392472448704347E-15 4.581440800723076E-13 -7.746551221414262E-16
tp -6.251991607038476E-13 1.722238803268253E-12 3.049700288246144E-9 -1.059959923321233E-12 7.719679266020374E-10 -1.215711936550318E-12
node -1.685687756602273E-15 5.392472448704347E-15 -1.059959923321233E-12 2.382749456322245E-9 -2.373730024203221E-9 -1.056762067697623E-10
peri -1.690454043414264E-13 4.581440800723076E-13 7.719679266020374E-10 -2.373730024203221E-9 2.567033756630826E-9 1.049949671549678E-10
i 2.428729013987657E-16 -7.746551221414262E-16 -1.215711936550318E-12 -1.056762067697623E-10 1.049949671549678E-10 1.738648219865742E-11

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 14.28   n/a E2021B10  
diameter diameter 4.197 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.230   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

14028 Nakamurahiroshi           Discovered 1994 Oct. 5 by K. Endate and K. Watanabe at Kitami.
Hiroshi Nakamura (b. 1955) is a well-known amateur astronomer in Kagawa Prefecture, Japan. He built an astronomical observatory in his garden in 1984. His main interests are observing comets and solar eclipses.
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 2015-01-05Last Updated: 2015-01-07

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1922-Apr-26 12:16 00:01 Eunom 0.0456724314664251 0.0456691977644542 0.0456756678138848 4.42692788849782 4.42692781906939 2423171.011040851 1.26044916029163 577.372765371748 25.0717235624505 73.9769626646233 261726.733436432 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 19:10:50 2021-Feb-24 19:10

Alternate Designations
 1994 TZ14 = 1997 KF3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-12 07:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin