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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1352005420788615 3.7852e-08  
a 2.619557852369255 1.1902e-08 au
q 2.265392210721993 1.0129e-07 au
i 12.2360638312896 4.7846e-06 deg
node 251.9253193440669 1.8145e-05 deg
peri 277.3615736696478 2.5685e-05 deg
M 298.0486587021279 1.9737e-05 deg
tp 2459266.994733602604
(2021-Feb-21.49473360)
8.5362e-05 TDB
period 1548.604147820652
4.24
1.0554e-05
2.89e-08
d
yr
n .2324674129968122 1.5843e-09 deg/d
Q 2.973723494016516 1.3511e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1666  
   data-arc span      13935 days (38.15 yr)  
   first obs. used      1981-12-04  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49963  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:18:39  

Additional Information
 Earth MOID = 1.30932 au 
 Jupiter MOID = 2.16549 au 
 T_jup = 3.360 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457032.5 (2015-Jan-10.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1351665708186182 3.8036e-08  
q 2.265271725709824 1.018e-07 au
tp 2457720.578103416024
(2016-Nov-28.07810342)
8.297e-05 TDB
node 251.9683346014343 1.8164e-05 deg
peri 277.7108591675347 2.5642e-05 deg
i 12.22981613608363 4.7825e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1666  
   data-arc span      13935 days (38.15 yr)  
   first obs. used      1981-12-04  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49963  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:18:39  

Additional Information
 Jupiter MOID = 2.16549 au 
 T_jup = 3.360 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.446704071537526E-15 -3.852640044362586E-15 5.695131204635725E-13 -4.368016432626141E-15 1.825181702761478E-13 2.872311952944717E-15
q -3.852640044362586E-15 1.036309799007578E-14 -1.379841772459356E-12 1.20624758991221E-14 -4.679696496349463E-13 -7.280867436777724E-15
tp 5.695131204635725E-13 -1.379841772459356E-12 6.884052510440832E-9 1.356464024166828E-12 1.509718557855223E-9 -2.298050132209091E-12
node -4.368016432626141E-15 1.20624758991221E-14 1.356464024166828E-12 3.299175033541432E-10 -3.218630684405087E-10 -2.417683805686852E-11
peri 1.825181702761478E-13 -4.679696496349463E-13 1.509718557855223E-9 -3.218630684405087E-10 6.574931580435723E-10 2.32160768976579E-11
i 2.872311952944717E-15 -7.280867436777724E-15 -2.298050132209091E-12 -2.417683805686852E-11 2.32160768976579E-11 2.287238004636876E-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 13.8   n/a MPO452389  
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

[ show close-approach data ]
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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