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 ]  
18337 (1988 RB11)
Classification: Main-belt Asteroid          SPK-ID: 2018337
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2028887700366053 4.3595e-08  
a 3.181164881818739 1.8271e-08 au
q 2.535742251662892 1.383e-07 au
i .9469512245503392 4.6809e-06 deg
node 162.8943100082886 0.00027385 deg
peri 243.9390704578724 0.0002741 deg
M 167.6603343462395 1.0741e-05 deg
tp 2458035.326202538690
(2017-Oct-08.82620254)
6.0275e-05 TDB
period 2072.419624122411
5.67
1.7854e-05
4.888e-08
d
yr
n .17370999377235 1.4965e-09 deg/d
Q 3.826587511974586 2.1978e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1036  
   data-arc span      11166 days (30.57 yr)  
   first obs. used      1988-09-14  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51897  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:35:43  

Additional Information
 Earth MOID = 1.54569 au 
 Jupiter MOID = 1.57181 au 
 T_jup = 3.167 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456435.5 (2013-May-23.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2040985044558993 4.3523e-08  
q 2.531328202196276 1.3818e-07 au
tp 2455964.702483881919
(2012-Feb-07.20248388)
6.0589e-05 TDB
node 162.9132790734024 0.00027402 deg
peri 244.3487052093679 0.00027427 deg
i .9466781218842862 4.6811e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1036  
   data-arc span      11166 days (30.57 yr)  
   first obs. used      1988-09-14  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51897  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:35:43  

Additional Information
 Jupiter MOID = 1.57181 au 
 T_jup = 3.167 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.894241176459105E-15 -5.980570492539587E-15 -3.770400444465866E-13 4.45399289640462E-15 -1.329717018197728E-13 -4.531471574391446E-16
q -5.980570492539587E-15 1.90939784047224E-14 1.025885914890425E-12 -1.398642198997091E-14 4.018514154672253E-13 1.492249117813878E-15
tp -3.770400444465866E-13 1.025885914890425E-12 3.671067964963262E-9 -8.061909620357782E-12 7.266981371180684E-10 -1.954339055720545E-13
node 4.45399289640462E-15 -1.398642198997091E-14 -8.061909620357782E-12 7.508569770971884E-8 -7.507684515463312E-8 1.103573553067979E-10
peri -1.329717018197728E-13 4.018514154672253E-13 7.266981371180684E-10 -7.507684515463312E-8 7.522231119914205E-8 -1.103607688862995E-10
i -4.531471574391446E-16 1.492249117813878E-15 -1.954339055720545E-13 1.103573553067979E-10 -1.103607688862995E-10 2.191307374355962E-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 14.1   n/a MPO384911  
diameter diameter 5.312 km 0.815 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.157   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18337 (1988 RB11)          Discovered 1988-Sep-14 by Bus, S. J. at Cerro Tololo
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1988 RB11 = 1990 AJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-17 22:21 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin