Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
4941 Yahagi (1986 UA)
Classification: Main-belt Asteroid          SPK-ID: 2004941
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1739107700640421 3.7455e-08  
a 3.185329134648722 1.5526e-08 au
q 2.631366091934534 1.1973e-07 au
i 1.87492130009911 3.3823e-06 deg
node 129.3232111854327 0.00013504 deg
peri 266.3244731125023 0.00013555 deg
M 330.0766806453157 9.7703e-06 deg
tp 2459173.098558604268
(2020-Nov-19.59855860)
5.5958e-05 TDB
period 2076.490257014542
5.69
1.5182e-05
4.157e-08
d
yr
n .1733694626227562 1.2675e-09 deg/d
Q 3.73929217736291 1.8226e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2458  
   data-arc span      18659 days (51.09 yr)  
   first obs. used      1969-10-15  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48269  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:19:58  

Additional Information
 Earth MOID = 1.63912 au 
 Jupiter MOID = 1.69126 au 
 T_jup = 3.174 
[ 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 12.6   n/a MPO448963  
diameter diameter 17.560 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.690 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.059   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4941 Yahagi           Discovered 1986 Oct. 25 by K. Suzuki and T. Urata at Toyota.
The Yahagi River flows through Aichi, hometown of the discoverers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

[ show close-approach data ]
Alternate Designations
 1986 UA = 1969 TR5 = 1975 VW1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-22 22:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin