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243652 (1999 TG254)
Classification: Main-belt Asteroid          SPK-ID: 2243652
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1460357030500771 5.3872e-08  
a 2.625785040149468 2.2601e-08 au
q 2.242326675752866 1.3716e-07 au
i 11.14185583820832 5.9507e-06 deg
node 182.6133792487463 2.8239e-05 deg
peri 231.5883149017426 3.4314e-05 deg
M 268.7400658484843 2.1394e-05 deg
tp 2459394.471523345165
(2021-Jun-28.97152334)
9.4871e-05 TDB
period 1554.129418598796
4.25
2.0065e-05
5.493e-08
d
yr
n .2316409403822856 2.9907e-09 deg/d
Q 3.009243404546071 2.5902e-08 au
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      7203 days (19.72 yr)  
   first obs. used      1999-09-09  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6136  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:23:18  

Additional Information
 Earth MOID = 1.27045 au 
 Jupiter MOID = 2.43936 au 
 T_jup = 3.361 
[ 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 16.3   n/a MPO437137  

243652 (1999 TG254)          Discovered 1999-Oct-13 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

Alternate Designations
 1999 TG254 = 1999 TC307 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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