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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0179184873849968 1.4032e-08  
a 2.914495146907893 9.7109e-09 au
q 2.862271802384389 4.5165e-08 au
i 8.473232610389916 4.3078e-07 deg
node 48.16372777402902 1.1104e-06 deg
peri 9.793616202212677 5.3232e-05 deg
M 261.6439097857178 5.5561e-05 deg
tp 2459893.026220326960
(2022-Nov-09.52622033)
0.00028123 TDB
period 1817.370321738852
4.98
9.083e-06
2.487e-08
d
yr
n .1980884114226943 9.9003e-10 deg/d
Q 2.966718491431397 9.8849e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3302  
   data-arc span      33808 days (92.56 yr)  
   first obs. used      1929-01-16  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42352  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:53:19  

Additional Information
 Earth MOID = 1.87263 au 
 Jupiter MOID = 2.08846 au 
 T_jup = 3.266 
[ 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 11.30   n/a E2021B10  
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. 2020-October); 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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