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30835 Waterloo (1990 WB7)
Classification: Main-belt Asteroid          SPK-ID: 2030835
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .137887094035886 4.2687e-08  
a 2.386929704922068 7.8864e-09 au
q 2.05780290424243 1.0365e-07 au
i 5.283634544536595 4.6401e-06 deg
node 175.1741637875947 3.3848e-05 deg
peri 186.7330447766076 3.5755e-05 deg
M 107.3367980565467 1.162e-05 deg
tp 2458798.890473820610
(2019-Nov-11.39047382)
4.3205e-05 TDB
period 1346.969837393639
3.69
6.6756e-06
1.828e-08
d
yr
n .2672665638130347 1.3246e-09 deg/d
Q 2.716056505601707 8.9739e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1270  
   data-arc span      16594 days (45.43 yr)  
   first obs. used      1975-10-13  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54435  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:31:48  

Additional Information
 Earth MOID = 1.0533 au 
 Jupiter MOID = 2.73624 au 
 T_jup = 3.516 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.20   n/a MPCxxxxx  

30835 Waterloo           Discovered 1990 Nov. 21 by E. W. Elst at the European Southern Observatory.
Waterloo is a small village near Brussels, known as the site of the 1815 battle. Napoleon's French forces were defeated by the Austrian, German and English armies.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-06-02Last Updated: 2015-06-04

Alternate Designations
 1990 WB7 = 1975 TG7 = 1996 HO2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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