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 ]  
52977 (1998 UE4)
Classification: Main-belt Asteroid          SPK-ID: 2052977
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .234522124998506 3.5238e-08  
a 2.341096052065113 8.0279e-09 au
q 1.79205723110919 8.4648e-08 au
i 9.870375084773372 4.2765e-06 deg
node 126.9494862923347 1.9814e-05 deg
peri 234.6641717234515 2.1592e-05 deg
M 98.38346727932917 1.0303e-05 deg
tp 2458842.941670911679
(2019-Dec-25.44167091)
3.6432e-05 TDB
period 1308.360053080184
3.58
6.7298e-06
1.843e-08
d
yr
n .2751536162790022 1.4153e-09 deg/d
Q 2.890134873021036 9.9106e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1439  
   data-arc span      23842 days (65.28 yr)  
   first obs. used      1955-12-11  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48575  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:20:43  

Additional Information
 Earth MOID = .806528 au 
 Jupiter MOID = 2.596 au 
 T_jup = 3.507 
[ 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 14.87   n/a MPCxxxxx  
diameter diameter 6.568 km 0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52977 (1998 UE4)          Discovered 1998-Oct-21 by Korlevic, K. at Visnjan
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 UE4 = 1987 SN8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-18 16:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin