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4514 Vilen (1972 HX)
Classification: Main-belt Asteroid          SPK-ID: 2004514
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .153193668884858 3.976e-08  
a 2.343879542217215 9.1279e-09 au
q 1.984812035720798 9.075e-08 au
i 7.963049772920748 3.5351e-06 deg
node 110.3620862743603 2.9539e-05 deg
peri 88.47527492044151 3.1997e-05 deg
M 161.2513360593475 1.1552e-05 deg
tp 2458413.413383006821
(2018-Oct-21.91338301)
4.1586e-05 TDB
period 1310.694145441115
3.59
7.6565e-06
2.096e-08
d
yr
n .2746636209920978 1.6045e-09 deg/d
Q 2.702947048713631 1.0526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1760  
   data-arc span      17638 days (48.29 yr)  
   first obs. used      1972-04-19  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50632  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:16:31  

Additional Information
 Earth MOID = 1.00187 au 
 Jupiter MOID = 2.29225 au 
 T_jup = 3.534 
[ 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 13.7   n/a MPO337289  
rotation period rot_per 2.89224 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pray, D.; Pravec, P.; Hornoch, K.; Kusnirak, P.; et al. (2015) CBET 4101.]

4514 Vilen (1972 HX)          Discovered 1972-Apr-19 by Smirnova, T. M. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1972 HX = 1972 KA = 1982 BR8 = 1986 CE = 1986 ER1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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