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 ]  
74181 (1998 RB28)
Classification: Main-belt Asteroid          SPK-ID: 2074181
[ 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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09652302206158013 3.9932e-08  
a 2.60505069060253 1.529e-08 au
q 2.353603325321968 1.0649e-07 au
i 14.33242451998427 9.1803e-06 deg
node 338.4385249639788 1.4625e-05 deg
peri 78.36896557069893 5.5347e-05 deg
M 265.4961928161272 5.0496e-05 deg
tp 2459003.652631279301
(2020-Jun-03.15263128)		 0.00021548 TDB
period 1535.757675647547
4.20		 1.3521e-05
3.702e-08		 d
yr
n .2344119815961247 2.0638e-09 deg/d
Q 2.856498055883093 1.6766e-08 au
   Orbit Determination Parameters
   # obs. used (total)      733  
   data-arc span      7742 days (21.20 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5719  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:50:32  

Additional Information
 Earth MOID = 1.4105 au 
 Jupiter MOID = 2.44393 au 
 T_jup = 3.362 
[ 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 15.1   n/a MPO453154  

74181 (1998 RB28)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RB28 = 2000 AR247 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-11 01:19 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin