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 ]  
85601 (1998 FU121)
Classification: Outer Main-belt Asteroid          SPK-ID: 2085601
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1550087560830445 3.8845e-08  
a 3.200942506206871 2.177e-08 au
q 2.704768390026401 1.2586e-07 au
i 1.555336079045727 5.1313e-06 deg
node 54.78086265507403 0.00016365 deg
peri 52.69648011489923 0.00016451 deg
M 20.21854045262572 1.7418e-05 deg
tp 2458883.020378715130
(2020-Feb-03.52037871)
0.00010069 TDB
period 2091.776296199495
5.73
2.134e-05
5.843e-08
d
yr
n .1721025334564104 1.7558e-09 deg/d
Q 3.697116622387342 2.5145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      925  
   data-arc span      7989 days (21.87 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54301  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:35:13  

Additional Information
 Earth MOID = 1.72192 au 
 Jupiter MOID = 1.43569 au 
 T_jup = 3.175 
[ 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 14.6   n/a MPO459396  
diameter diameter 6.716 km 0.305 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85601 (1998 FU121)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-28 18:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin