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(2018 AH39)
Classification: TransNeptunian Object          SPK-ID: 54117589
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1873418749408918 0.0076575  
a 55.02941169553304 0.19253 au
q 44.72009853159765 0.29704 au
i 29.35489526492698 0.009855 deg
node 95.87728546688312 0.0091817 deg
peri 239.8368471610979 3.4203 deg
M 132.7866145558401 5.1582 deg
tp 2404203.053044467917
(1870-May-20.55304447)
1869.4 TDB
period 149104.493477884
408.23
782.52
2.142
d
yr
n .002414414157500875 1.2671e-05 deg/d
Q 65.33872485946844 0.2286 au
  Orbit Determination Parameters
   # obs. used (total)      9  
   data-arc span      685 days (1.88 yr)  
   first obs. used      2018-01-15  
   last obs. used      2019-12-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .11058  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:20:02  

Additional Information
 Earth MOID = 43.8042 au 
 Jupiter MOID = 40.1533 au 
 T_jup = 5.663 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.21   .14429 E2021D90 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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