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 ]  
134691 (1999 XR61)
Classification: Main-belt Asteroid          SPK-ID: 2134691
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819570153705057 3.5669e-08  
a 2.436816005207268 1.311e-08 au
q 1.993420237892675 8.5673e-08 au
i 2.098861254046698 4.6078e-06 deg
node 182.9800150997244 0.00011653 deg
peri 145.9680363937831 0.0001175 deg
M 272.3233965155637 1.8403e-05 deg
tp 2459538.887063069563
(2021-Nov-20.38706307)
7.2788e-05 TDB
period 1389.416764150392
3.80
1.1212e-05
3.07e-08
d
yr
n .2591015232352797 2.0909e-09 deg/d
Q 2.880211772521861 1.5495e-08 au
  Orbit Determination Parameters
   # obs. used (total)      730  
   data-arc span      9533 days (26.10 yr)  
   first obs. used      1994-04-15  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55937  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:09:29  

Additional Information
 Earth MOID = .98078 au 
 Jupiter MOID = 2.46783 au 
 T_jup = 3.480 
[ 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 15.88   n/a E2021B55  
diameter diameter 1.492 km 0.195 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.416   0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134691 (1999 XR61)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 1999 XR61 = 2003 YF98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-16 10:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin