Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
21083 (1991 TH14)
Classification: Main-belt Asteroid          SPK-ID: 2021083
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2759791073472125 8.7653e-08  
a 2.586355185111986 1.7771e-08 au
q 1.872575189841945 2.2527e-07 au
i 5.152016306077218 6.3448e-06 deg
node 121.828101680792 9.6426e-05 deg
peri 246.6011868244433 9.7329e-05 deg
M 347.6548814410638 1.6575e-05 deg
tp 2457652.598286647164
(2016-Sep-21.09828665)
7.0194e-05 JED
period 1519.255007834862
4.16
1.5658e-05
4.287e-08
d
yr
n .2369582447604022 2.4422e-09 deg/d
Q 3.300135180382026 2.2675e-08 au
  Orbit Determination Parameters
   # obs. used (total)      406  
   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      .60616  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:31:32  

Additional Information
 Earth MOID = .877548 au 
 Jupiter MOID = 2.16855 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-May-02 05:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin