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 ]  
101159 (1998 RU77)
Classification: Main-belt Asteroid          SPK-ID: 2101159
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2830077775067503 2.9424e-08  
a 2.352268516728574 7.2739e-09 au
q 1.68655823171012 6.9489e-08 au
i 5.308372013947309 4.5385e-06 deg
node 156.2422196391601 4.3049e-05 deg
peri 132.0348898375184 4.4421e-05 deg
M 51.24973257198651 1.1612e-05 deg
tp 2458812.906462312982
(2019-Nov-25.40646231)
4.1869e-05 TDB
period 1317.737092041743
3.61
6.1122e-06
1.673e-08
d
yr
n .2731956185905072 1.2672e-09 deg/d
Q 3.017978801747028 9.3325e-09 au
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      9632 days (26.37 yr)  
   first obs. used      1994-06-13  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55347  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:05  

Additional Information
 Earth MOID = .676125 au 
 Jupiter MOID = 2.19312 au 
 T_jup = 3.496 
[ 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 16.0   n/a MPO385424  

101159 (1998 RU77)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 RU77 = 2001 FW120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-24 18:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin