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 ]  
100421 (1996 FF4)
Classification: Main-belt Asteroid          SPK-ID: 2100421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]
Orbit Diagram
[ switch to new HTML5 viewer ]

Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1192018934653963 4.2081e-08  
a 2.692436033484689 1.5649e-08 au
q 2.371492560258853 1.1238e-07 au
i 10.45801037709095 5.1527e-06 deg
node 28.01636475124232 2.114e-05 deg
peri 191.8723760901601 2.9454e-05 deg
M 107.3802268860647 2.3331e-05 deg
tp 2458519.175094050154
(2019-Feb-04.67509405)
0.00010266 TDB
period 1613.676662518132
4.42
1.4069e-05
3.852e-08
d
yr
n .2230930200342753 1.945e-09 deg/d
Q 3.013379506710525 1.7514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      797  
   data-arc span      8988 days (24.61 yr)  
   first obs. used      1996-03-23  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49861  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:06:16  

Additional Information
 Earth MOID = 1.36517 au 
 Jupiter MOID = 1.95968 au 
 T_jup = 3.337 
[ 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 15.1   n/a MPO436467  
diameter diameter 5.051 km 0.226 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.44 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]
geometric albedo albedo 0.076   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100421 (1996 FF4)          Discovered 1996-Mar-23 by AMOS at Haleakala
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1928-Feb-13 06:22 00:02 Jupiter 1.97918962378728 1.97918898839105 1.97919025919634 3.67745382989062 3.55917659816612 2425289.765610683 2.07034940474471 305.961738896059 13.4645879310722 -85.1501523162146 2720220.02838853 T 27 CATAB v2.0f-lin.ifort 2020-Nov-12 20:06:18 2020-Nov-12 20:06
2083-Mar-04 04:26 00:02 Jupiter 1.97576084313929 1.97576041350878 1.97576127277069 3.49400443014372 3.3690730098481 2481922.684801743 1.62038784974244 109.88462247849 13.380328027716 -81.6610854566919 2996974.36402469 T 27 CATAB v2.0f-lin.ifort 2020-Nov-12 20:06:18 2020-Nov-12 20:06
2118-May-15 08:05 00:02 Jupiter 1.95413840386566 1.95413801531031 1.95413879242302 3.59832713269997 3.47578148054936 2494777.836867137 2.46302645759001 178.866623986873 12.2863060772691 -86.5378130544673 2632897.36658865 T 27 CATAB v2.0f-lin.ifort 2020-Nov-12 20:06:18 2020-Nov-12 20:06
2153-Jul-27 23:04 00:03 Jupiter 1.9802041390706 1.98020326929083 1.98020500887862 3.71298002944478 3.5959325079526 2507635.460943560 3.34995495091328 414.942612032973 13.4986183896337 -84.9007208202015 2748301.71200663 T 27 CATAB v2.0f-lin.ifort 2020-Nov-12 20:06:18 2020-Nov-12 20:06

Alternate Designations
 1996 FF4 = 2001 FL1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-02 20:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin