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 ]  
101997 (1999 RU75)
Classification: Main-belt Asteroid          SPK-ID: 2101997
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1019405637083067 4.6857e-08  
a 2.384966216300664 1.0943e-08 au
q 2.141841415785707 1.1157e-07 au
i 4.774395146026391 5.5239e-06 deg
node 219.7207299536421 3.9775e-05 deg
peri 198.0165127026131 4.4895e-05 deg
M 222.664903573873 2.2026e-05 deg
tp 2459713.716735854536
(2022-May-14.21673585)
8.4068e-05 TDB
period 1345.308152945558
3.68
9.2592e-06
2.535e-08
d
yr
n .2675966834897852 1.8418e-09 deg/d
Q 2.628091016815621 1.2059e-08 au
  Orbit Determination Parameters
   # obs. used (total)      869  
   data-arc span      7672 days (21.00 yr)  
   first obs. used      1999-09-04  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53761  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:49  

Additional Information
 Earth MOID = 1.15346 au 
 Jupiter MOID = 2.65816 au 
 T_jup = 3.524 
[ 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 15.78   n/a E2021B55  

101997 (1999 RU75)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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 2021-May-18 21:53 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin