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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1452924549870129 2.6344e-08  
a 3.166466824836625 1.2099e-08 au
q 2.70640308622118 8.3008e-08 au
i 9.085631514881175 4.9173e-07 deg
node 297.1301378540931 1.5794e-06 deg
peri 108.5751766371594 6.2357e-06 deg
M 103.1911585534153 5.9789e-06 deg
tp 2458806.569530271843
(2019-Nov-19.06953027)
3.2552e-05 TDB
period 2058.073308598467
5.63
1.1796e-05
3.23e-08
d
yr
n .1749208827965207 1.0025e-09 deg/d
Q 3.62653056345207 1.3857e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3520  
   data-arc span      41927 days (114.79 yr)  
   first obs. used      1906-09-12  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37717  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:01:26  

Additional Information
 Earth MOID = 1.73318 au 
 Jupiter MOID = 1.81926 au 
 T_jup = 3.168 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456884.5 (2014-Aug-15.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1395406182050767 2.6022e-08  
q 2.725998194193874 8.1311e-08 au
tp 2456744.615557436991
(2014-Mar-28.11555744)
3.1145e-05 TDB
node 297.4508050267066 1.5758e-06 deg
peri 108.0135500716906 6.5555e-06 deg
i 9.107320896734683 4.9378e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3520  
   data-arc span      41927 days (114.79 yr)  
   first obs. used      1906-09-12  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37717  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:01:26  

Additional Information
 Jupiter MOID = 1.81926 au 
 T_jup = 3.168 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.771343369999065E-16 -2.098529661943816E-15 1.558328893785852E-13 6.876023811624642E-15 -4.347276637466634E-14 -4.296193246816682E-15
q -2.098529661943816E-15 6.611433968517532E-15 -4.629448121153481E-13 -2.124577246198352E-14 1.422561386857735E-13 1.347757032431188E-14
tp 1.558328893785852E-13 -4.629448121153481E-13 9.699867134672219E-10 -7.849881352577143E-12 1.812307978308216E-10 -7.94274843096134E-12
node 6.876023811624642E-15 -2.124577246198352E-14 -7.849881352577143E-12 2.483172433709131E-12 -3.697540439424284E-12 1.245373186595624E-13
peri -4.347276637466634E-14 1.422561386857735E-13 1.812307978308216E-10 -3.697540439424284E-12 4.297487119140824E-11 -1.145944016447791E-12
i -4.296193246816682E-15 1.347757032431188E-14 -7.94274843096134E-12 1.245373186595624E-13 -1.145944016447791E-12 2.438180984232077E-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

[ show close-approach data ]
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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