Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
21457 Fevig (1998 HD51)
Classification: Main-belt Asteroid          SPK-ID: 2021457
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1887689534628376 3.5132e-08  
a 2.342571341764568 6.9803e-09 au
q 1.900366601167635 8.2128e-08 au
i .2399277910200384 3.5617e-06 deg
node 59.73505701038992 0.00099469 deg
peri 57.42087817521817 0.00099476 deg
M 195.4056580976511 1.0183e-05 deg
tp 2459799.256259830635
(2022-Aug-07.75625983)
3.7314e-05 TDB
period 1309.596982786397
3.59
5.8534e-06
1.603e-08
d
yr
n .2748937304620517 1.2287e-09 deg/d
Q 2.784776082361501 8.2979e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1304  
   data-arc span      9193 days (25.17 yr)  
   first obs. used      1994-05-02  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:56:55  

Additional Information
 Earth MOID = .916529 au 
 Jupiter MOID = 2.30731 au 
 T_jup = 3.539 
[ 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 15.5   n/a MPO474047  

21457 Fevig           Discovered 1998 Apr. 25 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Ronald A. Fevig (b. 1964), of the University of North Dakota, works on the spectroscopy of minor planets and comets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080718/MPCPages.arcLast Updated: 2008-07-18

[ show close-approach data ]
Alternate Designations
 1998 HD51 = 2000 XK54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-10 11:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin