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JPL Small-Body Database Browser
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14925 Naoko (1994 VU2)
Classification: Main-belt Asteroid          SPK-ID: 2014925
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1940418978314678 3.699e-08  
a 2.262759679081965 9.2823e-09 au
q 1.823689496616378 8.5984e-08 au
i 6.768141830072631 3.7003e-06 deg
node 27.09449944680687 3.5809e-05 deg
peri 313.8039329569123 3.7222e-05 deg
M 115.9890613132508 1.1223e-05 deg
tp 2458199.937206828930
3.7765e-05 TDB
period 1243.243146456185
n .2895652399340915 1.7818e-09 deg/d
Q 2.701829861547553 1.1083e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1273  
   data-arc span      15111 days (41.37 yr)  
   first obs. used      1977-10-20  
   last obs. used      2019-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54719  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:29:30  

Additional Information
 Earth MOID = .822864 au 
 Jupiter MOID = 2.70976 au 
 T_jup = 3.584 
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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 14.5   n/a MPO416869  
diameter diameter 3.294 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 5.650939 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.283   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

14925 Naoko           Discovered 1994 Nov. 4 by K. Endate and K. Watanabe at Kitami.
Astronaut Yamazaki (Sumino) Naoko (b. 1970) was chosen in 1999 to represent the National Space Development Agency of Japan in the management and application of the International Space Station. In particular, he has been engaged in the system integration of the Japanese Experiment Module.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070601/MPCPages.arcLast Updated: 2007-06-06

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Alternate Designations
 1994 VU2 = 1977 UH2 = 1987 SA30 = 1999 CB88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2019-Dec-07 17:04 UT
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