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7336 Saunders (1989 RS1)
Classification: Amor [NEO]          SPK-ID: 2007336
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 146 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4817050719244923 3.3664e-08  
a 2.304880273500982 1.403e-09 au
q 1.194607755576848 7.7739e-08 au
i 7.197246574134468 4.5806e-06 deg
node 174.4846160090812 1.7776e-05 deg
peri 181.4679167493537 2.6322e-05 deg
M 275.4450595045838 7.5735e-06 deg
tp 2459300.697776240912
(2021-Mar-27.19777624)
2.6792e-05 TDB
period 1278.118094738495
3.50
1.167e-06
3.195e-09
d
yr
n .2816641134195479 2.5717e-10 deg/d
Q 3.415152791425116 2.0788e-09 au
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      12871 days (35.24 yr)  
   first obs. used      1982-10-20  
   last obs. used      2018-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4492  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Jan-16 06:56:03  

Additional Information
 Earth MOID = .190276 au 
 Jupiter MOID = 2.03648 au 
 T_jup = 3.415 
[ 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 18.8   n/a MPO179645  
rotation period rot_per 4.307 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2018) Minor Planet Bull. 45, 138-147.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.J.; Pravec, P.; Koehn, B.W. (2019) Minor Plantet Bull. 46, 238-265.]
SMASSII spectral type spec_B Sq   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)

7336 Saunders           Discovered 1989 Sept. 6 by E. F. Helin at Palomar.
R. Stephen Saunders (b. 1940), chief scientist for the Solar System Exploration Office at the Jet Propulsion Laboratory, is the project scientist for the Mars Surveyor Program 2001/2003 mission, director of JPL's Regional Planetary Image Facility and former project scientist of the Magellan mission to Venus.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000726/MPCPages.arcLast Updated: 2013-03-29

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