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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01982700457902787 3.6497e-08  
a 2.90960421968985 1.1848e-08 au
q 2.8519154835029 1.0633e-07 au
i 8.482047680020116 4.1465e-06 deg
node 48.27157526518626 2.4273e-05 deg
peri 12.40786721552885 9.6863e-05 deg
M 100.9908020972419 9.3033e-05 deg
tp 2458091.955894924725
(2017-Dec-04.45589492)
0.00046861 TDB
period 1812.797542204082
4.96
1.1072e-05
3.031e-08
d
yr
n .1985880891929584 1.213e-09 deg/d
Q 2.967292955876799 1.2083e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2574  
   data-arc span      32986 days (90.31 yr)  
   first obs. used      1929-01-16  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45725  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:25:15  

Additional Information
 Earth MOID = 1.86305 au 
 Jupiter MOID = 2.09892 au 
 T_jup = 3.267 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456020.5 (2012-Apr-03.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .020027990277726 3.6228e-08  
q 2.851520956151472 1.0581e-07 au
tp 2456333.357720128118
(2013-Feb-09.85772013)
0.00047026 TDB
node 48.38117107820256 2.4197e-05 deg
peri 23.534357292199 9.6939e-05 deg
i 8.496921568808062 4.1521e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2574  
   data-arc span      32986 days (90.31 yr)  
   first obs. used      1929-01-16  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45725  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:25:15  

Additional Information
 Jupiter MOID = 2.09892 au 
 T_jup = 3.267 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.312489401404952E-15 -3.810185809392324E-15 -1.845249382724601E-12 -3.87674127247727E-16 -3.652793942330212E-13 7.941923509416505E-17
q -3.810185809392324E-15 1.119581374601487E-14 4.662981896162392E-12 1.114415891869925E-15 9.164405475803446E-13 -1.84325361570445E-16
tp -1.845249382724601E-12 4.662981896162392E-12 2.211425047902806E-7 2.591424108541744E-12 4.415754996806276E-8 1.402123171681986E-12
node -3.87674127247727E-16 1.114415891869925E-15 2.591424108541744E-12 5.854775696908118E-10 -5.781731005050167E-10 7.474618927032453E-13
peri -3.652793942330212E-13 9.164405475803446E-13 4.415754996806276E-8 -5.781731005050167E-10 9.397259527728045E-9 -4.476273828168156E-13
i 7.941923509416505E-17 -1.84325361570445E-16 1.402123171681986E-12 7.474618927032453E-13 -4.476273828168156E-13 1.724016969174058E-11

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-January); 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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