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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
91182 (1998 RO49)
Classification: Outer Main-belt Asteroid          SPK-ID: 2091182
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2440262957064262 3.6102e-08  
a 3.288373653792051 1.7048e-08 au
q 2.485924012158571 1.223e-07 au
i 1.473864778853819 3.539e-06 deg
node 110.6210416558483 0.00016617 deg
peri 300.87982646 0.00016633 deg
M 271.7405669822955 8.7991e-06 deg
tp 2459930.484682457782
(2022-Dec-16.98468246)
5.6118e-05 TDB
period 2178.061642954809
5.96
1.6938e-05
4.637e-08
d
yr
n .1652845782232387 1.2853e-09 deg/d
Q 4.090823295425531 2.1208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      10071 days (27.57 yr)  
   first obs. used      1994-01-07  
   last obs. used      2021-08-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58749  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:17:12  

Additional Information
 Earth MOID = 1.49675 au 
 Jupiter MOID = 1.29932 au 
 T_jup = 3.124 
[ 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 15.03   n/a E2021B10  
diameter diameter 4.984 km 0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91182 (1998 RO49)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 RO49 = 1994 AF7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-18 08:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin