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JPL Small-Body Database Browser
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7304 Namiki (1994 AE2)
Classification: Mars-crossing Asteroid          SPK-ID: 2007304
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 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4233621770587913 3.7465e-08  
a 2.620739846647976 1.6656e-08 au
q 1.511217719666366 9.8965e-08 au
i 9.604103864736601 4.4144e-06 deg
node 109.411425245394 2.8162e-05 deg
peri 114.8409666332043 2.8692e-05 deg
M 295.7067885257978 1.2358e-05 deg
tp 2458877.255916157171
(2020-Jan-28.75591616)
5.5602e-05 TDB
period 1549.652405472997
4.24
1.4773e-05
4.045e-08
d
yr
n .2323101611229507 2.2147e-09 deg/d
Q 3.730261973629586 2.3708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      13344 days (36.53 yr)  
   first obs. used      1982-08-20  
   last obs. used      2019-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52555  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:49:29  

Additional Information
 Earth MOID = .533906 au 
 Jupiter MOID = 1.38344 au 
 T_jup = 3.253 
[ 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 13.8   n/a MPO337316  
rotation period rot_per 8.8712 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Brinsfield, J.W. (2007) Minor Planet Bull. 34, 108-110.]
[Montigiani, N.; Mannucci, M.; Benedetti, W.; Riccetti, S. (2007) Minor Planet Bull. 34, 108.]
[Wagner, R. (2007) Minor Planet Bull. 34, 112.]
[Vander Haagen, G.A. (2008) Minor Planet Bull. 35, 5-6.]
[Sheridan, E. (2011) Posting on CALL site. http://www.minorplanet.info/call.html]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
SMASSII spectral type spec_B Ld   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

7304 Namiki           Discovered 1994 Jan. 9 by T. Kobayashi at Oizumi.
Namiki Mitsuo (b. 1957) is a Japanese amateur astronomer on the staff of the public-information office of the National Astronomical Observatory. He acts as a bridge between Japanese professionals and amateurs and helps create friendly relationships.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

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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
1929-Jan-29 22:19 00:02 Jupiter 1.36839730484641 1.36839645161487 1.36839815808402 2.09652949806749 1.77692387782243 2425641.429878349 2.09440848115691 179.593782806887 41.9916815472173 -77.9100267463326 4366574.52758849 T 46 CATAB v2.0e-lin.ifort 2019-Jul-12 18:49:35 2019-Jul-12 18:49
1988-Apr-25 08:25 < 00:01 Jupiter 1.36370804253887 1.3637075300215 1.36370855505648 2.14782683745904 1.83600809674714 2447276.851005387 0.488069863910315 72.4660369146034 42.6009378799978 -82.2694634309132 3415975.54886614 T 46 CATAB v2.0e-lin.ifort 2019-Jul-12 18:49:35 2019-Jul-12 18:49
2047-Jul-16 22:32 < 00:01 Jupiter 1.38644031790744 1.38643965937555 1.38644097643949 2.2388525733804 1.94694486495226 2468908.438637132 0.870367054389954 84.2164639591358 43.5467403853118 82.3836009216603 2695296.61273551 T 46 CATAB v2.0e-lin.ifort 2019-Jul-12 18:49:35 2019-Jul-12 18:49
2106-Sep-19 18:48 00:03 Jupiter 1.46032055075353 1.46031805776713 1.46032304375181 2.37337416612967 2.1149124831632 2490522.283633768 2.54940358142042 263.581695488379 44.4286650088891 66.6845962440834 2116562.57714586 T 46 CATAB v2.0e-lin.ifort 2019-Jul-12 18:49:35 2019-Jul-12 18:49
2117-May-15 13:52 00:02 Earth 0.498693768291602 0.498693229127996 0.498694308496437 3.18272251674306 3.18104334847594 2494413.077971491 1.84536552596162 1403.71645399046 15.7952643021814 -89.081866658232 1193517.70026039 T 46 CATAB v2.0e-lin.ifort 2019-Jul-12 18:49:35 2019-Jul-12 18:49
2119-Nov-01 19:20 00:04 Jupiter 1.84722598838538 1.84722080444392 1.84723117237273 2.10384088514133 1.87325153947629 2495313.305657713 4.10371136314743 570.34943265839 80.6850915927941 -57.4476567667 2510261.25594653 T 46 CATAB v2.0e-lin.ifort 2019-Jul-12 18:49:35 2019-Jul-12 18:49
2165-Oct-21 14:55 00:05 Jupiter 1.62970542820662 1.62969877212793 1.62971208432913 2.47908643476862 2.25973234412155 2512104.121322366 5.07672774487052 557.16634777007 46.5543314189963 51.2538392733487 1754822.27757799 T 46 CATAB v2.0e-lin.ifort 2019-Jul-12 18:49:35 2019-Jul-12 18:49
2178-Nov-08 00:33 00:05 Jupiter 1.61313320644998 1.6131264405529 1.61313997235476 2.28345402744767 2.04058915899726 2516869.522928544 5.27452369677658 386.831717046021 64.1150768825791 -29.3314210210913 1795965.92100803 T 46 CATAB v2.0e-lin.ifort 2019-Jul-12 18:49:35 2019-Jul-12 18:49
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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