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129973 Michaeldaly (1999 UW25)
Classification: Main-belt Asteroid          SPK-ID: 2129973
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1814116498457388 4.9763e-08  
a 2.674172668220707 1.8712e-08 au
q 2.189046592506407 1.331e-07 au
i 12.58625261551137 6.0299e-06 deg
node 214.2883859753456 2.6447e-05 deg
peri 202.6936551671571 3.3872e-05 deg
M 280.9612627095942 2.6003e-05 deg
tp 2459551.187340162788
(2021-Dec-02.68734016)
0.00011786 TDB
period 1597.285670123277
4.37
1.6765e-05
4.59e-08
d
yr
n .2253823512811053 2.3656e-09 deg/d
Q 3.159298743935007 2.2107e-08 au
  Orbit Determination Parameters
   # obs. used (total)      372  
   data-arc span      7182 days (19.66 yr)  
   first obs. used      1999-10-01  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58459  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:44:54  

Additional Information
 Earth MOID = 1.20447 au 
 Jupiter MOID = 2.24041 au 
 T_jup = 3.322 
[ 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 15.5   n/a MPO338153  

129973 Michaeldaly           Discovered 1999 Oct. 30 by the Catalina Sky Survey.
Michael Daly (b. 1965) is a professor of planetary science at York University and is the lead scientist for the OSIRIS-REx Laser Altimeter. Prior to this, he was the lead engineer for the development of Phoenix MET, Canada's first instruments to operate on the surface of Mars.
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 2016-08-18Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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