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216461 (2025 T-2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2216461
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0974797241256736 4.422e-08  
a 3.239081544980328 2.9241e-08 au
q 2.923336769555084 1.4962e-07 au
i 3.538741850668443 4.4826e-06 deg
node 323.801617475553 7.8378e-05 deg
peri 73.32007650800585 8.2854e-05 deg
M 7.321023342092115 2.4149e-05 deg
tp 2459157.198739372038
(2020-Nov-03.69873937)
0.00014301 TDB
period 2129.272520747314
5.83
2.8833e-05
7.894e-08
d
yr
n .1690718292244011 2.2895e-09 deg/d
Q 3.55482632040557 3.2091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      360  
   data-arc span      17301 days (47.37 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-01-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57381  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:54  

Additional Information
 Earth MOID = 1.93192 au 
 Jupiter MOID = 1.85503 au 
 T_jup = 3.174 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.51   n/a E2021B55  

216461 (2025 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 2025 T-2 = 2008 SK158 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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