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 ]  
11028 (1987 UW)
Classification: Main-belt Asteroid          SPK-ID: 2011028
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1650991721838878 3.6553e-08  
a 2.629940580663916 1.1827e-08 au
q 2.19573956790349 9.7023e-08 au
i 32.2213882812736 5.308e-06 deg
node 206.0227894467895 7.83e-06 deg
peri 158.8378356135665 1.874e-05 deg
M 301.4255161653708 1.8244e-05 deg
tp 2459453.968095083017
(2021-Aug-27.46809508)
7.9744e-05 TDB
period 1557.820201839151
4.27
1.0508e-05
2.877e-08
d
yr
n .2310921373178924 1.5588e-09 deg/d
Q 3.064141593424341 1.3779e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1389  
   data-arc span      14929 days (40.87 yr)  
   first obs. used      1979-12-20  
   last obs. used      2020-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51156  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:44:26  

Additional Information
 Earth MOID = 1.2102 au 
 Jupiter MOID = 2.43301 au 
 T_jup = 3.165 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457493.5 (2016-Apr-15.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1648317765141925 3.6738e-08  
q 2.195704675139179 9.7463e-08 au
tp 2457898.614857422037
(2017-May-25.11485742)
7.5345e-05 TDB
node 206.0508141934576 7.8272e-06 deg
peri 159.243035721836 1.8732e-05 deg
i 32.2292915652007 5.3094e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1389  
   data-arc span      14929 days (40.87 yr)  
   first obs. used      1979-12-20  
   last obs. used      2020-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51156  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:44:26  

Additional Information
 Jupiter MOID = 2.43301 au 
 T_jup = 3.165 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.34967886372127E-15 -3.562173050241222E-15 1.188251506752087E-12 -1.437917745676983E-15 3.032022810932358E-13 3.87426770554144E-15
q -3.562173050241222E-15 9.498990853177903E-15 -2.861948564588189E-12 4.945398128438743E-15 -7.473204589114197E-13 -7.98891669302751E-15
tp 1.188251506752087E-12 -2.861948564588189E-12 5.676876112548484E-9 -5.67152771298974E-12 1.299334632465471E-9 1.670443716857535E-11
node -1.437917745676983E-15 4.945398128438743E-15 -5.67152771298974E-12 6.1264360602902E-11 -5.30092680531369E-11 2.012894876485768E-11
peri 3.032022810932358E-13 -7.473204589114197E-13 1.299334632465471E-9 -5.30092680531369E-11 3.508934564681473E-10 -1.338671131138125E-11
i 3.87426770554144E-15 -7.98891669302751E-15 1.670443716857535E-11 2.012894876485768E-11 -1.338671131138125E-11 2.818933767454902E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.07   n/a E2021B10  
diameter diameter 4.358 km 0.709 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.281   0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11028 (1987 UW)          Discovered 1987-Oct-18 by Mueller, J. at Palomar
Reference: 19990728/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-03 02:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin