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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 ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .145292455035275 2.6344e-08  
a 3.166466824930239 1.2097e-08 au
q 2.706403086148373 8.3008e-08 au
i 9.085631514297861 4.9173e-07 deg
node 297.1301378528765 1.5794e-06 deg
peri 108.5751766128561 6.2356e-06 deg
M 103.1911585557193 5.9789e-06 deg
tp 2458806.569530232510
(2019-Nov-19.06953023)
3.2552e-05 TDB
period 2058.073308689736
5.63
1.1794e-05
3.229e-08
d
yr
n .1749208827887635 1.0024e-09 deg/d
Q 3.626530563712106 1.3855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3528  
   data-arc span      41940 days (114.83 yr)  
   first obs. used      1906-09-12  
   last obs. used      2021-07-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38046  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:07:02  

Additional Information
 Earth MOID = 1.73318 au 
 Jupiter MOID = 1.81926 au 
 T_jup = 3.168 
[ 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 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

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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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