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20073 Yumiko (1994 AN2)
Classification: Main-belt Asteroid          SPK-ID: 2020073
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06477489021197221 5.357e-08  
a 2.300734335315277 1.1854e-08 AU
q 2.151704521338315 1.2578e-07 AU
i 6.590559795812002 5.0153e-06 deg
node 305.4544880848467 4.8382e-05 deg
peri 271.6120278814346 6.225e-05 deg
M 266.4785818044136 4.0883e-05 deg
tp 2457331.636245849118
(2015-Nov-05.13624585)
0.00014507 JED
period 1274.671094661697
3.49
9.8511e-06
2.697e-08
d
yr
n .2824257971391008 2.1827e-09 deg/d
Q 2.449764149292239 1.2622e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      867  
   data-arc span      7734 days (21.17 yr)  
   first obs. used      1993-11-21  
   last obs. used      2015-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55773  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:55:51  

Additional Information
 Earth MOID = 1.15773 AU 
 T_jup = 3.580 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8 mag n/a MPO267783  

20073 Yumiko           Discovered 1994 Jan. 9 by T. Kobayashi and H. Fujii at Oizumi.
Yumiko Fujii (b. 1968) is the wife of the second discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050407/MPCPages.arcLast Updated: 2005-04-15

[ show close-approach data ]
Alternate Designations
 1994 AN2 = 1998 FN111 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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