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 ]  
74329 (1998 UU45)
Classification: Main-belt Asteroid          SPK-ID: 2074329
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06174434014500393 4.2197e-08  
a 2.731063306920902 1.5311e-08 au
q 2.562435605140838 1.2056e-07 au
i 5.354932873252361 4.4671e-06 deg
node 12.96794543490733 4.5965e-05 deg
peri 301.0034820198674 6.1908e-05 deg
M 336.2346458258498 3.8703e-05 deg
tp 2459109.327303404573
(2020-Sep-16.82730340)
0.00017698 TDB
period 1648.52705070394
4.51
1.3863e-05
3.795e-08
d
yr
n .2183767623626654 1.8364e-09 deg/d
Q 2.899691008700966 1.6256e-08 au
  Orbit Determination Parameters
   # obs. used (total)      588  
   data-arc span      10872 days (29.77 yr)  
   first obs. used      1991-01-11  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59497  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:44:07  

Additional Information
 Earth MOID = 1.554 au 
 Jupiter MOID = 2.27827 au 
 T_jup = 3.345 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO253816  
diameter diameter 4.681 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74329 (1998 UU45)          Discovered 1998-Oct-24 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-26 00:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin