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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
59987 (1999 SG16)
Classification: Main-belt Asteroid          SPK-ID: 2059987
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04918429135342672 5.0391e-08  
a 3.118349258526245 2.5519e-08 au
q 2.964975460053147 1.596e-07 au
i 12.66764276348566 5.5938e-06 deg
node 235.8932378201012 2.1334e-05 deg
peri 123.2395309085317 5.2911e-05 deg
M 191.5900851725916 4.8857e-05 deg
tp 2459541.415699331952
(2021-Nov-22.91569933)
0.00027614 TDB
period 2011.340318689924
5.51
2.469e-05
6.76e-08
d
yr
n .1789851258162438 2.1971e-09 deg/d
Q 3.271723056999341 2.6775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1044  
   data-arc span      13417 days (36.73 yr)  
   first obs. used      1982-08-16  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51875  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:16:22  

Additional Information
 Earth MOID = 1.98543 au 
 Jupiter MOID = 1.98782 au 
 T_jup = 3.177 
[ 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 13.5   n/a MPO344742  
diameter diameter 9.232 km 0.241 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.099   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59987 (1999 SG16)          Discovered 1999-Sep-29 by CSS at Catalina
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 SG16 = 2000 RO61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-28 00:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin