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 ]  
27037 (1998 RB55)
Classification: Main-belt Asteroid          SPK-ID: 2027037
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09449077121236289 3.2715e-08  
a 2.250730139410111 7.2605e-09 au
q 2.038056912746341 7.3965e-08 au
i 5.260037445611887 3.5261e-06 deg
node 245.2810626045587 3.9496e-05 deg
peri 278.3806561342196 4.3755e-05 deg
M 356.9357633529626 1.8569e-05 deg
tp 2459010.997922643663
(2020-Jun-10.49792264)
6.3618e-05 TDB
period 1233.3421295553
3.38
5.9679e-06
1.634e-08
d
yr
n .2918898101127896 1.4124e-09 deg/d
Q 2.463403366073882 7.9466e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1654  
   data-arc span      12438 days (34.05 yr)  
   first obs. used      1985-12-17  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51439  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 02:43:55  

Additional Information
 Earth MOID = 1.05321 au 
 Jupiter MOID = 2.53401 au 
 T_jup = 3.616 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456801.5 (2014-May-24.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09438218258662062 3.2775e-08  
q 2.038387780679171 7.409e-08 au
tp 2456544.744439475143
(2013-Sep-09.24443948)
6.4606e-05 TDB
node 245.3240220772416 3.9519e-05 deg
peri 278.5292455195719 4.3773e-05 deg
i 5.258004031017352 3.5253e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1654  
   data-arc span      12438 days (34.05 yr)  
   first obs. used      1985-12-17  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51439  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 02:43:55  

Additional Information
 Jupiter MOID = 2.53401 au 
 T_jup = 3.616 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.074182995887899E-15 -2.418753617305016E-15 1.116531615370891E-14 -6.134932709333601E-15 1.010617151608978E-14 -4.607563171644328E-16
q -2.418753617305016E-15 5.489394087773108E-15 -1.003295240769884E-13 1.347300790706691E-14 -4.245716861079717E-14 1.08279198018683E-15
tp 1.116531615370891E-14 -1.003295240769884E-13 4.173960380596925E-9 6.623262482938541E-12 1.227585543473553E-9 -1.648025198726144E-12
node -6.134932709333601E-15 1.347300790706691E-14 6.623262482938541E-12 1.561713640304001E-9 -1.552914563988345E-9 2.29889375011441E-12
peri 1.010617151608978E-14 -4.245716861079717E-14 1.227585543473553E-9 -1.552914563988345E-9 1.916036120385103E-9 -2.751226084758875E-12
i -4.607563171644328E-16 1.08279198018683E-15 -1.648025198726144E-12 2.29889375011441E-12 -2.751226084758875E-12 1.242794272250436E-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 14.7   n/a MPO358882  
diameter diameter 2.822 km 0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.385   0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27037 (1998 RB55)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RB55 = 1985 YA1 = 2000 AY236 
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-19 23:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin