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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1191593332282797 4.1653e-08  
a 2.71762625026062 1.5702e-08 au
q 2.393795718315895 1.1583e-07 au
i 13.90980416108306 5.7207e-06 deg
node 140.1361334318983 1.8107e-05 deg
peri 271.2748759684388 3.0478e-05 deg
M 307.5760578087802 2.6012e-05 deg
tp 2458838.792402226813
(2019-Dec-21.29240223)
0.00011883 TDB
period 1636.375694310537
4.48
1.4182e-05
3.883e-08
d
yr
n .2199983788879734 1.9067e-09 deg/d
Q 3.041456782205345 1.7573e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1210  
   data-arc span      14958 days (40.95 yr)  
   first obs. used      1978-09-27  
   last obs. used      2019-09-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56159  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:55:06  

Additional Information
 Earth MOID = 1.45261 au 
 Jupiter MOID = 2.34129 au 
 T_jup = 3.308 
[ 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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