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

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1192018766403981 4.4119e-08  
a 2.692436042901448 1.7481e-08 au
q 2.371492613853348 1.2017e-07 au
i 10.45801142758067 5.2984e-06 deg
node 28.01637236748663 2.3769e-05 deg
peri 191.8723662038263 3.1378e-05 deg
M 107.3802249324844 2.3284e-05 deg
tp 2458519.175100281810
(2019-Feb-04.67510028)
0.00010245 TDB
period 1613.67667098385
4.42
1.5715e-05
4.303e-08
d
yr
n .223093018863878 2.1727e-09 deg/d
Q 3.013379471949547 1.9565e-08 au
  Orbit Determination Parameters
   # obs. used (total)      689  
   data-arc span      8502 days (23.28 yr)  
   first obs. used      1996-03-23  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51976  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:56:45  

Additional Information
 Earth MOID = 1.36517 au 
 Jupiter MOID = 1.95968 au 
 T_jup = 3.337 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456717.5 (2014-Mar-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1177240836896021 4.4289e-08  
q 2.375988159111808 1.2032e-07 au
tp 2456904.733261568355
(2014-Sep-04.23326157)
9.8522e-05 TDB
node 28.09421628655655 2.3745e-05 deg
peri 191.9433018298795 3.1463e-05 deg
i 10.4627297207303 5.2997e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      689  
   data-arc span      8502 days (23.28 yr)  
   first obs. used      1996-03-23  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51976  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:56:45  

Additional Information
 Jupiter MOID = 1.95968 au 
 T_jup = 3.337 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.961480317438203E-15 -5.285441491317142E-15 -1.253521023113688E-12 -9.146881455889934E-15 -2.420395810565319E-13 -7.313090349590554E-16
q -5.285441491317142E-15 1.447671538006405E-14 3.74103466041885E-12 2.394776795121241E-14 7.217405500412192E-13 3.097598549602569E-15
tp -1.253521023113688E-12 3.74103466041885E-12 9.706558037099355E-9 1.442241486636461E-11 2.050649538267867E-9 1.767906221763862E-12
node -9.146881455889934E-15 2.394776795121241E-14 1.442241486636461E-11 5.638412631551499E-10 -5.513622926301258E-10 -2.329306603606859E-11
peri -2.420395810565319E-13 7.217405500412192E-13 2.050649538267867E-9 -5.513622926301258E-10 9.899118351620771E-10 2.328202816619962E-11
i -7.313090349590554E-16 3.097598549602569E-15 1.767906221763862E-12 -2.329306603606859E-11 2.328202816619962E-11 2.80870654701337E-11

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 1.97918974506239 1.97918905499652 1.97919043514355 3.67745421104208 3.55917699935173 2425289.765349554 2.26816423755875 333.395509335829 14.6799295099023 -85.1825796966577 2658707.81875303 T 24 CATAB v2.0f-lin.ifort 2020-Jan-29 14:57:03 2020-Jan-29 14:57
2083-Mar-04 04:26 00:02 Jupiter 1.97576094516111 1.97576043646437 1.97576145385898 3.49400465744472 3.3690732521485 2481922.685054914 1.83699383806469 126.403057531009 16.3858792054911 -81.3806701555217 2905802.20791627 T 24 CATAB v2.0f-lin.ifort 2020-Jan-29 14:57:03 2020-Jan-29 14:57
2118-May-15 08:06 00:03 Jupiter 1.95413842223312 1.95413803118369 1.95413881328444 3.5983272034619 3.47578155497829 2494777.837230383 2.77396835133238 196.015593331911 13.6013417188265 -87.1694392718712 2578287.17129706 T 24 CATAB v2.0f-lin.ifort 2020-Jan-29 14:57:03 2020-Jan-29 14:57
2153-Jul-27 23:04 00:04 Jupiter 1.98020400726781 1.98020306975598 1.98020494481577 3.71297990302016 3.59593236949536 2507635.461433893 3.7623972222579 468.281311231955 14.519378284811 -85.1081390412173 2678872.99330271 T 24 CATAB v2.0f-lin.ifort 2020-Jan-29 14:57:03 2020-Jan-29 14:57

Alternate Designations
 1996 FF4 = 2001 FL1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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