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181923 (1999 TD105)
Classification: Main-belt Asteroid          SPK-ID: 2181923
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1994159005614619 6.8826e-08  
a 2.405640248464901 1.0893e-08 au
q 1.925917331890374 1.6369e-07 au
i 3.451255532295086 5.2551e-06 deg
node 253.8975460082177 0.00010575 deg
peri 140.4666338212365 0.0001063 deg
M 233.5045289804929 1.2235e-05 deg
tp 2459679.369221660384
(2022-Apr-09.86922166)
4.8342e-05 TDB
period 1362.838672470361
3.73
9.2564e-06
2.534e-08
d
yr
n .2641545234018366 1.7941e-09 deg/d
Q 2.885363165039429 1.3065e-08 au
  Orbit Determination Parameters
   # obs. used (total)      359  
   data-arc span      9004 days (24.65 yr)  
   first obs. used      1995-09-02  
   last obs. used      2020-04-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5839  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:36  

Additional Information
 Earth MOID = .933012 au 
 Jupiter MOID = 2.55144 au 
 T_jup = 3.493 
[ 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 16.89   n/a E2021B55  

181923 (1999 TD105)          Discovered 1999-Oct-03 by LINEAR at Socorro
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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