Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06477488289504754 5.1445e-08  
a 2.30073433454092 1.1577e-08 AU
q 2.151704537448416 1.216e-07 AU
i 6.59055978096254 4.9949e-06 deg
node 305.4544908948934 4.4822e-05 deg
peri 271.6120214190906 5.9655e-05 deg
M 266.4785858187383 4.08e-05 deg
tp 2457331.636231468210
(2015-Nov-05.13623147)
0.00014479 JED
period 1274.671094018173
3.49
9.6211e-06
2.634e-08
d
yr
n .2824257972816848 2.1317e-09 deg/d
Q 2.449764131633423 1.2327e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1030  
   data-arc span      7872 days (21.55 yr)  
   first obs. used      1993-11-21  
   last obs. used      2015-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52463  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:26:22  

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 14.9 mag n/a MPO337428  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Aug-31 19:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin