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15449 (1998 XS30)
Classification: Main-belt Asteroid          SPK-ID: 2015449
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1351189724999859 1.846e-08  
a 2.619542063138648 1.052e-08 au
q 2.265592231146861 4.9755e-08 au
i 12.23518654298662 9.5651e-07 deg
node 251.9210440871005 1.9247e-06 deg
peri 277.3311464341534 8.5969e-06 deg
M 344.564518397595 9.3534e-06 deg
tp 2459266.897874217937
(2021-Feb-21.39787422)
4.0266e-05 TDB
period 1548.590146661368
4.24
9.3289e-06
2.554e-08
d
yr
n .2324695147880995 1.4004e-09 deg/d
Q 2.973491895130435 1.1942e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2014  
   data-arc span      14337 days (39.25 yr)  
   first obs. used      1981-12-04  
   last obs. used      2021-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47788  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 00:36:18  

Additional Information
 Earth MOID = 1.30916 au 
 Jupiter MOID = 2.1647 au 
 T_jup = 3.360 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457404.5 (2016-Jan-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .135383736484275 1.8465e-08  
q 2.264141460919688 4.9749e-08 au
tp 2457720.715562745603
(2016-Nov-28.21556275)
4.0641e-05 TDB
node 251.9619825581065 1.9263e-06 deg
peri 277.8003469494038 8.5998e-06 deg
i 12.231569294313 9.5643e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2014  
   data-arc span      14337 days (39.25 yr)  
   first obs. used      1981-12-04  
   last obs. used      2021-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47788  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 00:36:18  

Additional Information
 Jupiter MOID = 2.1647 au 
 T_jup = 3.360 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.409547042510991E-16 -9.03238749912998E-16 -4.474796453390564E-13 -5.177897728355137E-16 -6.756233413494808E-14 2.923791503103135E-15
q -9.03238749912998E-16 2.47494649082894E-15 1.115857247745034E-12 1.437935914291272E-15 1.583537896768294E-13 -7.584014832170163E-15
tp -4.474796453390564E-13 1.115857247745034E-12 1.6517163834056E-9 -2.058056269826815E-12 3.334127008001953E-10 2.076483346851829E-12
node -5.177897728355137E-16 1.437935914291272E-15 -2.058056269826815E-12 3.710666406375259E-12 -4.113447993830274E-12 -4.480259172670862E-13
peri -6.756233413494808E-14 1.583537896768294E-13 3.334127008001953E-10 -4.113447993830274E-12 7.395699253348761E-11 1.158709098933643E-12
i 2.923791503103135E-15 -7.584014832170163E-15 2.076483346851829E-12 -4.480259172670862E-13 1.158709098933643E-12 9.147542422570668E-13

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 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1994-Nov-11 21:58 < 00:01 Vesta 0.0309345203077136 0.0309337877468337 0.0309352528698703 6.40985375440072 6.40985315432908 2449668.414959856 0.636022029506922 152.239571940733 36.3893539142908 89.0552250966093 126941.919389936 T 38 CATAB v2.0f-lin.ifort 2021-Mar-17 00:37:09 2021-Mar-17 00:37

Alternate Designations
 1998 XS30 = 1981 XE1 = 1996 LE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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