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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1278226704336648 6.9599e-08  
a 2.695124106657303 1.8401e-08 au
q 2.350626146194221 1.8354e-07 au
i 3.179040448109516 6.4759e-06 deg
node 23.03317947602993 9.9068e-05 deg
peri 331.6813154391878 0.00010122 deg
M 168.1757271635171 2.2185e-05 deg
tp 2458245.534000578910
(2018-May-07.03400058)
9.7284e-05 TDB
period 1616.093858344572
4.42
1.6551e-05
4.531e-08
d
yr
n .2227593392185539 2.2813e-09 deg/d
Q 3.039622067120384 2.0753e-08 au
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      8038 days (22.01 yr)  
   first obs. used      1998-02-23  
   last obs. used      2020-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54682  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:51  

Additional Information
 Earth MOID = 1.34648 au 
 Jupiter MOID = 2.39017 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 16.4   n/a MPO453678  

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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