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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
4780 Polina (1979 HE5)
Classification: Main-belt Asteroid          SPK-ID: 2004780
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0596804609583906 3.2449e-08  
a 2.170489370169767 6.1572e-09 au
q 2.040953564052748 7.0757e-08 au
i 4.680705554570445 3.0876e-06 deg
node 108.1512554684338 5.4033e-05 deg
peri 119.3527528578967 6.504e-05 deg
M 178.5735852127966 3.6868e-05 deg
tp 2458021.138490513258
(2017-Sep-24.63849051)
0.00011916 TDB
period 1167.97869722269
3.20
4.97e-06
1.361e-08
d
yr
n .3082247996954362 1.3116e-09 deg/d
Q 2.300025176286785 6.5247e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2523  
   data-arc span      14799 days (40.52 yr)  
   first obs. used      1979-04-25  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44795  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:39:22  

Additional Information
 Earth MOID = 1.03491 au 
 Jupiter MOID = 2.67886 au 
 T_jup = 3.682 
[ 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 14.1   n/a MPO416763  
diameter diameter 3.552 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.423   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4780 Polina (1979 HE5)          Discovered 1979-Apr-25 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1979 HE5 = 1985 DK = 1988 CT1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin