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 ]  
2899 Runrun Shaw (1964 TR2)
Classification: Main-belt Asteroid          SPK-ID: 2002899
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1558750789808867 1.3263e-08  
a 2.262091045142729 6.2731e-09 au
q 1.909487424819149 2.9341e-08 au
i 3.221294590851459 7.5218e-07 deg
node 19.68912454931125 5.8427e-06 deg
peri 304.1090842435688 7.8296e-06 deg
M 224.4030657685671 5.1297e-06 deg
tp 2459668.570119187052
(2022-Mar-30.07011919)
1.8559e-05 TDB
period 1242.692129157869
3.40
5.1692e-06
1.415e-08
d
yr
n .28969363493431 1.205e-09 deg/d
Q 2.614694665466308 7.2509e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2543  
   data-arc span      24227 days (66.33 yr)  
   first obs. used      1954-11-23  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46019  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:36:22  

Additional Information
 Earth MOID = .897726 au 
 Jupiter MOID = 2.693 au 
 T_jup = 3.601 
[ 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 13.51   n/a E2021B10  
diameter diameter 4.831 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.362   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2899 Runrun Shaw (1964 TR2)          Discovered 1964-Oct-08 by Purple Mountain Observatory at Nanking
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1964 TR2 = 1981 SG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-08 08:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin