Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .153093764255182 1.2317e-08  
a 2.344112035186886 7.0862e-09 au
q 1.98524309988425 2.8184e-08 au
i 7.963019103934358 6.8551e-07 deg
node 110.3629421036326 3.8053e-06 deg
peri 88.43465233074419 6.7927e-06 deg
M 216.2320787259542 5.0402e-06 deg
tp 2459724.010584046861
(2022-May-24.51058405)
1.991e-05 TDB
period 1310.889164889755
3.59
5.9442e-06
1.627e-08
d
yr
n .2746227596062829 1.2453e-09 deg/d
Q 2.702980970489522 8.171e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2239  
   data-arc span      17850 days (48.87 yr)  
   first obs. used      1972-04-19  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48304  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:27:01  

Additional Information
 Earth MOID = 1.00156 au 
 Jupiter MOID = 2.29111 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 13.80   n/a E2021B10  
rotation period rot_per 2.89224 h n/a LCDB (Rev. 2020-October); 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-08 11:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin