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11890 (1991 FF)
Classification: Outer Main-belt Asteroid          SPK-ID: 2011890
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04703887956901533 4.4584e-08  
a 3.231148977470944 1.9995e-08 au
q 3.079159349850141 1.4251e-07 au
i 17.81504862616431 4.884e-06 deg
node 337.585526778123 1.1e-05 deg
peri 209.4776663281813 3.9741e-05 deg
M 43.41531003155856 3.7382e-05 deg
tp 2458944.656547940775
(2020-Apr-05.15654794)
0.00022068 TDB
period 2121.455373101586
5.81
1.9692e-05
5.391e-08
d
yr
n .1696948258089808 1.5751e-09 deg/d
Q 3.383138605091747 2.0935e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1788  
   data-arc span      11954 days (32.73 yr)  
   first obs. used      1987-10-18  
   last obs. used      2020-07-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47934  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:01:01  

Additional Information
 Earth MOID = 2.09328 au 
 Jupiter MOID = 1.62814 au 
 T_jup = 3.109 
[ 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 13.04   n/a E2021B10  
diameter diameter 8.672 km 0.459 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.162   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11890 (1991 FF)          Discovered 1991-Mar-18 by McNaught, R. H. at Siding Spring
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

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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
2023-May-03 16:56 < 00:01 Jupiter 1.88657225676244 1.88657170117799 1.88657281234743 4.18154665561734 4.07276119815322 2460068.205332833 0.419485099313716 859.975733801624 25.8349676179226 89.5992293181909 3323860.69025275 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:01:07 2021-Apr-12 23:01
2034-Sep-29 14:49 < 00:01 Jupiter 1.75007397692636 1.75007344392758 1.75007450992604 4.77644071736583 4.67401338451986 2464235.117681520 0.647229160498002 264.359630914399 24.7797520922255 88.1290559392888 3418333.66215883 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:01:07 2021-Apr-12 23:01
2046-Mar-20 05:14 < 00:01 Jupiter 1.67658936524783 1.6765889173101 1.67658981318661 5.12050105270389 5.02086841314292 2468424.718335173 0.963481407600632 221.011782178851 20.5030783307126 88.0179751025354 3460555.71325713 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:01:07 2021-Apr-12 23:01
2057-Sep-13 17:49 00:01 Jupiter 1.67480086467303 1.67480032575904 1.67480140359948 5.33735681962923 5.24174469090959 2472620.242559337 1.37283512204747 299.747113104121 15.3783738955329 85.9922409975782 3441102.59210842 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:01:07 2021-Apr-12 23:01
2069-Feb-28 17:07 00:02 Jupiter 1.75063434210968 1.75063317810554 1.75063550615312 5.47805013733007 5.38900346484242 2476806.213224723 1.88786411690912 449.777135755317 18.6261427676743 83.0588957100632 3494991.31564163 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:01:07 2021-Apr-12 23:01
2080-Jul-26 05:37 00:02 Jupiter 1.91719674827909 1.91719472603395 1.9171987705772 5.54079774613276 5.46047932514998 2480971.734208980 2.49134970629432 529.659207481571 21.8694255724191 79.2864520232811 3856294.83119131 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:01:07 2021-Apr-12 23:01
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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