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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2829221825381339 2.7089e-08  
a 2.352539861140309 7.1649e-09 au
q 1.686954149118534 6.3752e-08 au
i 5.308240432696086 3.7664e-06 deg
node 156.2397302984782 4.2597e-05 deg
peri 132.0636136885344 4.3844e-05 deg
M 105.8659888734365 1.1645e-05 deg
tp 2458812.923112413421
(2019-Nov-25.42311241)
4.1271e-05 TDB
period 1317.9651086807
3.61
6.021e-06
1.648e-08
d
yr
n .2731483539502534 1.2479e-09 deg/d
Q 3.018125573162083 9.1921e-09 au
  Orbit Determination Parameters
   # obs. used (total)      881  
   data-arc span      9736 days (26.66 yr)  
   first obs. used      1994-06-13  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .543  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:29  

Additional Information
 Earth MOID = .674593 au 
 Jupiter MOID = 2.19248 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 2021-Apr-22 12:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin