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18277 (3446 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2018277
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03135142192901143 3.5279e-08  
a 2.7753631979155 1.1343e-08 au
q 2.688351615291401 9.9673e-08 au
i 4.085468131498637 4.0762e-06 deg
node 174.5959355707559 4.7083e-05 deg
peri 55.38025731052817 7.8821e-05 deg
M 268.9680773652756 6.4347e-05 deg
tp 2459627.540808929093
(2022-Feb-17.04080893)
0.00030228 TDB
period 1688.799783251319
4.62
1.0353e-05
2.834e-08
d
yr
n .213169141523052 1.3069e-09 deg/d
Q 2.8623747805396 1.1699e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1926  
   data-arc span      15865 days (43.44 yr)  
   first obs. used      1977-10-07  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49956  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:25:59  

Additional Information
 Earth MOID = 1.67926 au 
 Jupiter MOID = 2.10519 au 
 T_jup = 3.331 
[ 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 14.1   n/a MPO452430  

18277 (3446 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 3446 T-3 = 1998 FE13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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