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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0188379226212149 3.6097e-08  
a 2.912104515947913 1.0103e-08 au
q 2.857246516411596 1.0514e-07 au
i 8.47725902192437 4.0496e-06 deg
node 48.25119159435944 1.9997e-05 deg
peri 11.17571739305288 8.47e-05 deg
M 221.3917884028885 8.3424e-05 deg
tp 2459899.368269664065
(2022-Nov-15.86826966)
0.0004218 TDB
period 1815.134718066778
4.97
9.4464e-06
2.586e-08
d
yr
n .1983323862503277 1.0322e-09 deg/d
Q 2.966962515484231 1.0294e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3061  
   data-arc span      33496 days (91.71 yr)  
   first obs. used      1929-01-16  
   last obs. used      2020-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42685  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:17:10  

Additional Information
 Earth MOID = 1.86763 au 
 Jupiter MOID = 2.09295 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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