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 ]  
49280 (1998 UT22)
Classification: Main-belt Asteroid          SPK-ID: 2049280
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1604044117433522 5.2218e-08  
a 2.544387518366284 1.0524e-08 au
q 2.136256535235613 1.3576e-07 au
i 14.0856994509171 4.0899e-06 deg
node 70.94978439339759 2.2148e-05 deg
peri 315.7232895564412 2.549e-05 deg
M 29.64983673835649 1.3887e-05 deg
tp 2458478.406338775841
(2018-Dec-25.90633878)
5.685e-05 TDB
period 1482.426983614269
4.06
9.1974e-06
2.518e-08
d
yr
n .2428450129275796 1.5067e-09 deg/d
Q 2.952518501496955 1.2212e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1311  
   data-arc span      7390 days (20.23 yr)  
   first obs. used      1998-10-28  
   last obs. used      2019-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5135  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:49:50  

Additional Information
 Earth MOID = 1.16485 au 
 Jupiter MOID = 2.50718 au 
 T_jup = 3.384 
[ 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 14.8   n/a MPO452840  
diameter diameter 3.580 km 0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.199   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49280 (1998 UT22)          Discovered 1998-Oct-28 by Broughton, J. at Reedy Creek
Reference: 20021120/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 2020-Jan-21 05:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin