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 ]  
4657 Lopez (1979 SU9)
Classification: Main-belt Asteroid          SPK-ID: 2004657
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1807429952771791 3.9796e-08  
a 3.102806308203057 1.6986e-08 au
q 2.54199580229351 1.2447e-07 au
i .281059529437041 5.0747e-06 deg
node 358.1849925047395 0.00083123 deg
peri 39.02544808891601 0.00083132 deg
M 61.27393172764407 1.2913e-05 deg
tp 2458260.715414473459
(2018-May-22.21541447)
7.0568e-05 TDB
period 1996.32123058897
5.47
1.6393e-05
4.488e-08
d
yr
n .1803316993697403 1.4808e-09 deg/d
Q 3.663616814112604 2.0056e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1916  
   data-arc span      23402 days (64.07 yr)  
   first obs. used      1955-04-16  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49032  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:36:00  

Additional Information
 Earth MOID = 1.54872 au 
 Jupiter MOID = 1.76229 au 
 T_jup = 3.196 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456075.5 (2012-May-28.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .178523870575319 4.0018e-08  
q 2.549255458869174 1.2475e-07 au
tp 2456269.641386426358
(2012-Dec-08.14138643)
6.7478e-05 TDB
node 358.5135508371181 0.00082829 deg
peri 39.77921509678868 0.00082838 deg
i .2821086561407762 5.0713e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1916  
   data-arc span      23402 days (64.07 yr)  
   first obs. used      1955-04-16  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49032  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:36:00  

Additional Information
 Jupiter MOID = 1.76229 au 
 T_jup = 3.196 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.601438520013144E-15 -4.96105916432048E-15 -5.386571824978691E-13 -1.773487510546875E-15 -1.084872101799704E-13 3.794426022417822E-17
q -4.96105916432048E-15 1.556159330577019E-14 1.74096401919317E-12 -5.284362571207783E-15 3.559188752913442E-13 -4.998144107618902E-17
tp -5.386571824978691E-13 1.74096401919317E-12 4.553315458418302E-9 1.124806918359032E-11 8.545738283901995E-10 -9.278735470413932E-14
node -1.773487510546875E-15 -5.284362571207783E-15 1.124806918359032E-11 6.860632067837457E-7 -6.860529145137797E-7 5.594121794622499E-11
peri -1.084872101799704E-13 3.559188752913442E-13 8.545738283901995E-10 -6.860529145137797E-7 6.862180074759777E-7 -5.596468783647957E-11
i 3.794426022417822E-17 -4.998144107618902E-17 -9.278735470413932E-14 5.594121794622499E-11 -5.596468783647957E-11 2.571836780248779E-11

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 12.7   n/a MPO337291  
diameter diameter 15.967 km 0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.120   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4657 Lopez (1979 SU9)          Discovered 1979-Sep-22 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1979 SU9 = 1978 NU7 = 1987 GJ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin