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1616 Filipoff (1950 EA)
Classification: Main-belt Asteroid          SPK-ID: 2001616
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01948001901985004 3.6133e-08  
a 2.9101635303943 1.1016e-08 au
q 2.853473489471345 1.0495e-07 au
i 8.481092518688726 4.1078e-06 deg
node 48.27039258806856 2.3084e-05 deg
peri 11.89535086589428 9.2751e-05 deg
M 180.9674598581786 8.9715e-05 deg
tp 2459902.287041992625
(2022-Nov-18.78704199)
0.00045236 TDB
period 1813.320276080412
4.96
1.0296e-05
2.819e-08
d
yr
n .1985308413239382 1.1272e-09 deg/d
Q 2.966853571317255 1.123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2785  
   data-arc span      33340 days (91.28 yr)  
   first obs. used      1929-01-16  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44428  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:27:20  

Additional Information
 Earth MOID = 1.86495 au 
 Jupiter MOID = 2.09684 au 
 T_jup = 3.267 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.2   n/a MPO272644  
diameter diameter 23.715 km 0.184 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.652 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Ruthroff, J.C. (2013) Minor Planet Bull. 40, 90-91.]
geometric albedo albedo 0.083   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1616 Filipoff (1950 EA)          Discovered 1950-Mar-15 by Boyer, L. at Algiers
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1950 EA = 1929 BB = 1957 UG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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