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34998 (1978 SE)
Classification: Main-belt Asteroid          SPK-ID: 2034998
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .119447226307571 4.01e-08  
a 2.718476443525915 1.2673e-08 au
q 2.393761972564274 1.0898e-07 au
i 13.90970160902027 4.1753e-06 deg
node 140.1292977301906 1.7868e-05 deg
peri 271.2312464402484 2.6421e-05 deg
M 35.59949398081916 1.786e-05 deg
tp 2458838.606984681473
(2019-Dec-21.10698468)
8.1488e-05 TDB
period 1637.143650021302
4.48
1.1448e-05
3.134e-08
d
yr
n .2198951814615143 1.5377e-09 deg/d
Q 3.043190914487556 1.4187e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1483  
   data-arc span      15100 days (41.34 yr)  
   first obs. used      1978-09-27  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52609  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:40:24  

Additional Information
 Earth MOID = 1.453 au 
 Jupiter MOID = 2.33951 au 
 T_jup = 3.307 
[ 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 13.7   n/a MPO302269  
diameter diameter 7.589 km 0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.101   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

34998 (1978 SE)          Discovered 1978-Sep-27 by West, R. M. at La Silla
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1978 SE = 1996 NP3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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