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 ]  
74168 (1998 RK2)
Classification: Main-belt Asteroid          SPK-ID: 2074168
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 .07272719177242833 5.3467e-08  
a 2.76124993529263 1.795e-08 au
q 2.560431981716998 1.4999e-07 au
i 5.436947711899466 5.3697e-06 deg
node 105.1151091512257 6.4918e-05 deg
peri 289.5867325784687 7.5243e-05 deg
M 234.8531866309045 3.8363e-05 deg
tp 2459583.105123758620
(2022-Jan-03.60512376)
0.00018009 TDB
period 1675.934359866787
4.59
1.6343e-05
4.474e-08
d
yr
n .2148055488453705 2.0946e-09 deg/d
Q 2.962067888868263 1.9256e-08 au
  Orbit Determination Parameters
   # obs. used (total)      566  
   data-arc span      9856 days (26.98 yr)  
   first obs. used      1992-04-29  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6497  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:41:11  

Additional Information
 Earth MOID = 1.57352 au 
 Jupiter MOID = 2.35348 au 
 T_jup = 3.331 
[ 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 15.2   n/a MPO337817  
diameter diameter 5.045 km 0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74168 (1998 RK2)          Discovered 1998-Sep-15 by ODAS at Caussols
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 RK2 = 2000 BM16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-13 02:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin