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21083 (1991 TH14)
Classification: Main-belt Asteroid          SPK-ID: 2021083
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2759393930780914 8.9138e-08  
a 2.586007445620947 1.774e-08 au
q 1.872426120580878 2.2906e-07 au
i 5.152249117388751 6.3834e-06 deg
node 121.8283135734018 9.6788e-05 deg
peri 246.6264854738978 9.7692e-05 deg
M 300.2375507954601 1.6389e-05 deg
tp 2457652.655804657678
(2016-Sep-21.15580466)
7.0286e-05 JED
period 1518.948618823811
4.16
1.563e-05
4.279e-08
d
yr
n .2370060419020387 2.4388e-09 deg/d
Q 3.299588770661017 2.2635e-08 au
  Orbit Determination Parameters
   # obs. used (total)      401  
   data-arc span      8672 days (23.74 yr)  
   first obs. used      1991-09-12  
   last obs. used      2015-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60573  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:28:25  

Additional Information
 Earth MOID = .876772 au 
 Jupiter MOID = 2.1695 au 
 T_jup = 3.362 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3 mag n/a MPO259493  

21083 (1991 TH14)          Discovered 1991-Oct-02 by de Saint-Aignan, C. P. at Palomar
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 TH14 = 1999 NN16 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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