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181956 (1999 TV287)
Classification: Main-belt Asteroid          SPK-ID: 2181956
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1797022905409497 5.8758e-08  
a 2.30301628005161 6.969e-09 au
q 1.889158979373238 1.3599e-07 au
i 2.176994455781203 5.2369e-06 deg
node 185.4539294359536 0.000106 deg
peri 214.8293943632532 0.00010693 deg
M 11.97923592430322 1.0544e-05 deg
tp 2459158.021364654405
(2020-Nov-04.52136465)
3.7397e-05 TDB
period 1276.567956507948
3.50
5.7944e-06
1.586e-08
d
yr
n .2820061385410144 1.28e-09 deg/d
Q 2.716873580729982 8.2213e-09 au
  Orbit Determination Parameters
   # obs. used (total)      358  
   data-arc span      8773 days (24.02 yr)  
   first obs. used      1997-01-31  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47872  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:45  

Additional Information
 Earth MOID = .896588 au 
 Jupiter MOID = 2.69015 au 
 T_jup = 3.567 
[ 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 17.57   n/a E2021B55  

181956 (1999 TV287)          Discovered 1999-Oct-10 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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