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 ]  
15449 (1998 XS30)
Classification: Main-belt Asteroid          SPK-ID: 2015449
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1351189739035271 1.8061e-08  
a 2.619542061809607 1.0401e-08 au
q 2.265592226320763 4.844e-08 au
i 12.23518653783393 9.5546e-07 deg
node 251.9210441148366 1.9246e-06 deg
peri 277.3311459440977 8.4913e-06 deg
M 344.5645192929961 9.0963e-06 deg
tp 2459266.897870315713
(2021-Feb-21.39787032)
3.9147e-05 TDB
period 1548.590145482838
4.24
9.2234e-06
2.525e-08
d
yr
n .2324695149650167 1.3846e-09 deg/d
Q 2.973491897298451 1.1807e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2058  
   data-arc span      14354 days (39.30 yr)  
   first obs. used      1981-12-04  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47309  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:03:09  

Additional Information
 Earth MOID = 1.30916 au 
 Jupiter MOID = 2.1647 au 
 T_jup = 3.360 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457424.5 (2016-Feb-06.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1353893455668674 1.8067e-08  
q 2.264106120363356 4.844e-08 au
tp 2457720.727993166936
(2016-Nov-28.22799317)
3.9827e-05 TDB
node 251.9620487636969 1.9263e-06 deg
peri 277.8049770305661 8.4921e-06 deg
i 12.23164140230675 9.5538e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2058  
   data-arc span      14354 days (39.30 yr)  
   first obs. used      1981-12-04  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47309  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:03:09  

Additional Information
 Jupiter MOID = 2.1647 au 
 T_jup = 3.360 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.264080417042563E-16 -8.600046716543231E-16 -4.166773773581335E-13 -5.350014404824092E-16 -6.240938462010608E-14 2.891916171854121E-15
q -8.600046716543231E-16 2.346446735663911E-15 1.024230705139643E-12 1.490566354467486E-15 1.430207913528519E-13 -7.493271200705607E-15
tp -4.166773773581335E-13 1.024230705139643E-12 1.586178231772708E-9 -2.014647652074902E-12 3.224296186655878E-10 2.118803775197033E-12
node -5.350014404824092E-16 1.490566354467486E-15 -2.014647652074902E-12 3.710455337434562E-12 -4.105721922370024E-12 -4.475236789157609E-13
peri -6.240938462010608E-14 1.430207913528519E-13 3.224296186655878E-10 -4.105721922370024E-12 7.211516935305591E-11 1.164183256821279E-12
i 2.891916171854121E-15 -7.493271200705607E-15 2.118803775197033E-12 -4.475236789157609E-13 1.164183256821279E-12 9.127515742472758E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.82   n/a E2021B10  
diameter diameter 4.835 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.330   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15449 (1998 XS30)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 XS30 = 1981 XE1 = 1996 LE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-13 07:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin