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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01791848753068247 1.4043e-08  
a 2.914495147197677 9.8885e-09 au
q 2.862271802244381 4.5293e-08 au
i 8.473232633155401 4.3117e-07 deg
node 48.16372779080842 1.1104e-06 deg
peri 9.793616243973267 5.361e-05 deg
M 261.6439096667699 5.6e-05 deg
tp 2459893.026221001492
(2022-Nov-09.52622100)
0.0002835 TDB
period 1817.3703220099
4.98
9.2491e-06
2.532e-08
d
yr
n .1980884113931508 1.0081e-09 deg/d
Q 2.966718492150973 1.0066e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3229  
   data-arc span      33764 days (92.44 yr)  
   first obs. used      1929-01-16  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42747  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:35:06  

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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