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408 Fama (A917 RB)
Classification: Main-belt Asteroid          SPK-ID: 2000408
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 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1451541130165959 2.6348e-08  
a 3.166653068048028 1.2172e-08 au
q 2.707000350724234 8.3067e-08 au
i 9.086097556144944 4.9191e-07 deg
node 297.1321010406973 1.5803e-06 deg
peri 108.6001412806843 6.2441e-06 deg
M 68.89656067354291 5.884e-06 deg
tp 2458806.592548060494
(2019-Nov-19.09254806)
3.258e-05 TDB
period 2058.254886918872
5.64
1.1867e-05
3.249e-08
d
yr
n .1749054513549127 1.0084e-09 deg/d
Q 3.626305785371821 1.3938e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3346  
   data-arc span      41829 days (114.52 yr)  
   first obs. used      1906-09-12  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37963  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:21:24  

Additional Information
 Earth MOID = 1.73343 au 
 Jupiter MOID = 1.81839 au 
 T_jup = 3.168 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456757.5 (2014-Apr-10.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1393653834268632 2.6045e-08  
q 2.725923334120216 8.1349e-08 au
tp 2456744.404133736078
(2014-Mar-27.90413374)
3.1223e-05 TDB
node 297.4505361745158 1.5769e-06 deg
peri 107.9656807253897 6.5628e-06 deg
i 9.107381313698404 4.9395e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3346  
   data-arc span      41829 days (114.52 yr)  
   first obs. used      1906-09-12  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37963  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:21:24  

Additional Information
 Jupiter MOID = 1.81839 au 
 T_jup = 3.168 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.783550661041869E-16 -2.101131402158566E-15 1.580797261239673E-13 6.897290789034325E-15 -4.314992118217085E-14 -4.306033573417757E-15
q -2.101131402158566E-15 6.61772022067599E-15 -4.703776342375483E-13 -2.141193928268553E-14 1.411420688150077E-13 1.350040855202238E-14
tp 1.580797261239673E-13 -4.703776342375483E-13 9.748467587168746E-10 -7.777717622701753E-12 1.819065914975678E-10 -7.976523300579848E-12
node 6.897290789034325E-15 -2.141193928268553E-14 -7.777717622701753E-12 2.486729756843852E-12 -3.690599366572484E-12 1.238668282649388E-13
peri -4.314992118217085E-14 1.411420688150077E-13 1.819065914975678E-10 -3.690599366572484E-12 4.306985899177467E-11 -1.151384312170904E-12
i -4.306033573417757E-15 1.350040855202238E-14 -7.976523300579848E-12 1.238668282649388E-13 -1.151384312170904E-12 2.439856495833032E-13

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 9.34   n/a E2021B10  
diameter diameter 35.620 km 0.259 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 202.1 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2008) Minor Planet Bull. 35, 21-22.]
geometric albedo albedo 0.221   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

408 Fama (A917 RB)          Discovered 1895-Oct-13 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1973-Jan-23 06:58 < 00:01 Jupiter 1.92930459734208 1.92930434199043 1.92930485269385 4.09661086128514 3.98800208603264 2441705.790016164 0.815978755320271 25.7597468276834 6.81485866951337 -70.2563104063863 10670525.8587711 T 48 CATAB v2.0g-lin.ifort 2021-May-03 18:23:00 2021-May-03 18:23
1983-Oct-19 06:09 < 00:01 Jupiter 1.88943706686432 1.88943687466709 1.88943725906155 3.16088664574398 3.0157283071845 2445626.756523673 0.630911197028514 37.2303378856083 7.27592150409889 85.2410546728212 8850166.53216429 T 48 CATAB v2.0g-lin.ifort 2021-May-03 18:23:00 2021-May-03 18:23
1994-Jun-23 03:50 < 00:01 Jupiter 1.97407789279095 1.97407763277812 1.97407815280378 2.25766405417831 2.05885939475931 2449526.659802776 0.451381100351832 15.399884675113 4.64918878716748 69.1234046300151 6093294.61293502 T 48 CATAB v2.0g-lin.ifort 2021-May-03 18:23:00 2021-May-03 18:23
2080-Apr-15 01:58 00:01 Jupiter 1.96952696220456 1.96952663533937 1.96952728906975 4.30928097901553 4.20829831291656 2480869.582206801 1.01568669359535 17.3604103850993 7.4680452080022 35.3436684974053 7479359.19451329 T 48 CATAB v2.0g-lin.ifort 2021-May-03 18:23:00 2021-May-03 18:23
2091-Jan-11 06:08 00:01 Jupiter 1.86021833056247 1.86021816770304 1.8602184934219 3.52661307711017 3.39504488898789 2484792.755639209 1.19394934438112 67.9851625009902 6.41984679851284 86.3742039819952 9778019.45876702 T 48 CATAB v2.0g-lin.ifort 2021-May-03 18:23:00 2021-May-03 18:23
2101-Sep-30 16:20 00:01 Jupiter 1.91829089888974 1.91829048555602 1.9182913122239 2.61736437423215 2.44284568754626 2488707.180518329 1.48471322482092 69.1558546049409 8.77484659030349 66.4714283695215 7241305.27949668 T 48 CATAB v2.0g-lin.ifort 2021-May-03 18:23:00 2021-May-03 18:23
2198-Apr-06 07:37 00:03 Jupiter 1.86196563927952 1.86196519055113 1.86196608801056 3.79930294481176 3.67761980925458 2523958.817440778 2.99185534863099 123.917546953442 6.36114405435315 -82.8871221854077 10269325.9856782 T 48 CATAB v2.0g-lin.ifort 2021-May-03 18:23:00 2021-May-03 18:23

Alternate Designations
 A917 RB = 1940 TG = A895 TC = A906 RC = A908 AB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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