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JPL Small-Body Database Browser
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2270 Yazhi (1980 ED)
Classification: Main-belt Asteroid          SPK-ID: 2002270
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377693391159429 3.7017e-08  
a 3.151537226715343 1.888e-08 au
q 2.717352025791478 1.2167e-07 au
i 2.120976779372956 4.1932e-06 deg
node 75.98706195772054 0.000119 deg
peri 189.1906881439322 0.00012036 deg
M 253.5731156951412 2.0777e-05 deg
tp 2459204.630742764933
0.00012027 TDB
period 2043.535041131018
n .1761653178213934 1.5831e-09 deg/d
Q 3.585722427639207 2.1482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2414  
   data-arc span      22330 days (61.14 yr)  
   first obs. used      1958-03-23  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48382  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:33:08  

Additional Information
 Earth MOID = 1.70117 au 
 Jupiter MOID = 1.49298 au 
 T_jup = 3.192 
[ 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 11.4   n/a MPO435718  
diameter diameter 25.790 km 0.442 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 7.78 h n/a LCDB (Rev. 2019-January); 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:
[Zeigler, K.W.; Monsees, R.D.; Brown, L. (1998) Minor Planet Bull. 25, 13-14.]
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.158   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

2270 Yazhi           Discovered 1980 Mar. 14 by E. Bowell at the Anderson Mesa station of the Lowell Observatory.
The name comes from the Navajo Indian language and means 'little one'. It was suggested by Debbie Geoffrion.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5525Last Updated: 2006-03-21

[ show close-approach data ]
Alternate Designations
 1980 ED = 1952 DM1 = 1958 FD = 1970 LF = 1971 TF2 = 1976 QH = 1976 SE = 1977 SV1 = 1977 UD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2019-Dec-11 22:42 UT
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