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 ]  
3472 Upgren (1981 EJ10)
Classification: Main-belt Asteroid          SPK-ID: 2003472
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .175130330400606 4.1544e-08  
a 2.725194204700862 9.8457e-09 au
q 2.247930043225783 1.1505e-07 au
i 4.501277212930591 4.0781e-06 deg
node 242.9093136043585 5.3447e-05 deg
peri 141.9496231525928 5.4547e-05 deg
M 312.9833793937514 9.9935e-06 deg
tp 2458815.106821071900
(2019-Nov-27.60682107)
4.562e-05 TDB
period 1643.21583707393
4.50
8.905e-06
2.438e-08
d
yr
n .2190826012491768 1.1873e-09 deg/d
Q 3.20245836617594 1.157e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1665  
   data-arc span      16509 days (45.20 yr)  
   first obs. used      1974-09-20  
   last obs. used      2019-12-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52856  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:31:10  

Additional Information
 Earth MOID = 1.25342 au 
 Jupiter MOID = 2.25908 au 
 T_jup = 3.330 
[ 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 13.9   n/a MPO502186  
diameter diameter 10.901 km 0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.440 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.050   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3472 Upgren (1981 EJ10)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 EJ10 = 1974 SS2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-18 21:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin