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120777 (1998 DZ25)
Classification: Main-belt Asteroid          SPK-ID: 2120777
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1280462177962322 6.455e-08  
a 2.694584929034602 1.7691e-08 au
q 2.349553520340992 1.7132e-07 au
i 3.179417875995318 6.444e-06 deg
node 23.0304437385026 9.5974e-05 deg
peri 331.7011209755995 9.8142e-05 deg
M 212.7164997275796 2.2302e-05 deg
tp 2459861.479267688497
(2022-Oct-08.97926769)		 0.00010265 TDB
period 1615.608917005192
4.42		 1.5911e-05
4.356e-08		 d
yr
n .2228262026848191 2.1944e-09 deg/d
Q 3.039616337728211 1.9957e-08 au
   Orbit Determination Parameters
   # obs. used (total)      298  
   data-arc span      8421 days (23.06 yr)  
   first obs. used      1998-02-23  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5446  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:05  

Additional Information
 Earth MOID = 1.34371 au 
 Jupiter MOID = 2.39078 au 
 T_jup = 3.356 
[ 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 16.45   n/a E2021B55  

120777 (1998 DZ25)          Discovered 1998-Feb-23 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1998 DZ25 = 2000 SM61 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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