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 ]  
74660 (1999 RG90)
Classification: Main-belt Asteroid          SPK-ID: 2074660
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2721220115002677 3.4596e-08  
a 2.534137904942788 1.0347e-08 au
q 1.844543200830682 8.9838e-08 au
i 4.856013653104768 4.0315e-06 deg
node 120.1070819288543 4.5493e-05 deg
peri 301.7351330382673 4.7185e-05 deg
M 5.525926584808709 1.5e-05 deg
tp 2458977.882405977496
(2020-May-08.38240598)		 6.133e-05 TDB
period 1473.478469743984
4.03		 9.0243e-06
2.471e-08		 d
yr
n .2443198237314929 1.4963e-09 deg/d
Q 3.223732609054894 1.3162e-08 au
   Orbit Determination Parameters
   # obs. used (total)      886  
   data-arc span      16069 days (43.99 yr)  
   first obs. used      1975-11-02  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49896  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:55:42  

Additional Information
 Earth MOID = .863172 au 
 Jupiter MOID = 2.1314 au 
 T_jup = 3.392 
[ 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 15.1   n/a MPO412636  
diameter diameter 6.169 km 0.494 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74660 (1999 RG90)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RG90 = 1975 VG5 = 1987 UB8 = 1991 SN2 = 1993 FP16 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-14 22:49 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin