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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456955.5 (2014-Oct-25.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1263187376194786 6.9424e-08  
q 2.354906517877132 1.8273e-07 au
tp 2456622.196994834541
(2013-Nov-25.69699483)
9.5776e-05 TDB
node 23.12794857694469 9.9257e-05 deg
peri 330.4019558163149 0.00010147 deg
i 3.177536566690899 6.4652e-06 deg
  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
 Jupiter MOID = 2.39017 au 
 T_jup = 3.356 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.819642812970472E-15 -1.264096301005439E-14 7.931659713463379E-13 2.969224120225649E-14 -1.031766193398058E-14 -1.620339949212067E-15
q -1.264096301005439E-14 3.339063628092119E-14 -1.935697839254574E-12 -7.509235728752545E-14 6.715813673806168E-14 4.422094243921466E-15
tp 7.931659713463379E-13 -1.935697839254574E-12 9.17302468528446E-9 4.989830091273656E-11 2.035673529537839E-9 -1.90632464067953E-12
node 2.969224120225649E-14 -7.509235728752545E-14 4.989830091273656E-11 9.851877771065328E-9 -9.825671796179067E-9 -8.760085258568106E-11
peri -1.031766193398058E-14 6.715813673806168E-14 2.035673529537839E-9 -9.825671796179067E-9 1.029705031626104E-8 8.707597999660497E-11
i -1.620339949212067E-15 4.422094243921466E-15 -1.90632464067953E-12 -8.760085258568106E-11 8.707597999660497E-11 4.179862423199205E-11

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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