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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1943537617321584 3.6799e-08  
a 2.262206508863363 8.7593e-09 au
q 1.822538164050795 8.5748e-08 au
i 6.768919907880724 3.6321e-06 deg
node 27.08518582891137 3.0396e-05 deg
peri 313.7993709391701 3.1652e-05 deg
M 231.8531940671743 1.117e-05 deg
tp 2459442.886721982500
(2021-Aug-16.38672198)
4.0186e-05 TDB
period 1242.787276314818
3.40
7.2182e-06
1.976e-08
d
yr
n .2896714561380868 1.6824e-09 deg/d
Q 2.701874853675931 1.0462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1457  
   data-arc span      15574 days (42.64 yr)  
   first obs. used      1977-10-20  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53565  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:36:53  

Additional Information
 Earth MOID = .822614 au 
 Jupiter MOID = 2.71309 au 
 T_jup = 3.585 
[ 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 14.5   n/a MPO416869  
diameter diameter 3.294 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.650939 h n/a LCDB (Rev. 2019-August); 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] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

[ 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
2155-May-02 08:07 00:06 Amphi 0.0489439765671801 0.0489308688039811 0.048957086361085 2.89792236963696 2.89792232910598 2508278.838359633 5.68061033596414 820.960661660174 48.4159242356464 37.3968181683317 92028.3858097274 T 30 CATAB v2.0f-lin.ifort 2020-Nov-13 02:36:57 2020-Nov-13 02:36
2175-Sep-28 02:42 00:05 Amphi 0.0393712655122433 0.0393592454195517 0.0393832912300689 3.02524201165158 3.02524196338644 2515732.612684639 5.13971957932065 954.867218118448 48.6313284276691 51.2518012809426 94449.1479262211 T 30 CATAB v2.0f-lin.ifort 2020-Nov-13 02:36:57 2020-Nov-13 02:36
2193-Jun-08 14:57 00:01 Hebe 0.045826523119867 0.0458138006397978 0.0458392503312811 5.62017310846556 5.62017308432813 2522196.123001249 1.12196778864671 970.722809463887 29.2861235493802 49.2278369703667 177278.737707929 T 30 CATAB v2.0f-lin.ifort 2020-Nov-13 02:36:57 2020-Nov-13 02:36
2196-Feb-18 18:53 00:03 Amphi 0.0388382860213936 0.0388249449334134 0.0388516353918263 3.36496092845921 3.36496088447134 2523181.286754536 2.82062733331535 1116.07630443353 48.9890234576953 -53.493849885496 95310.2135848016 T 30 CATAB v2.0f-lin.ifort 2020-Nov-13 02:36:57 2020-Nov-13 02:36

Alternate Designations
 1994 VU2 = 1977 UH2 = 1987 SA30 = 1999 CB88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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