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15447 (1998 XV4)
Classification: Main-belt Asteroid          SPK-ID: 2015447
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1049094741147038 4.0565e-08  
a 2.620886443970418 1.0765e-08 au
q 2.345930625419125 1.0583e-07 au
i 2.29424427374118 4.138e-06 deg
node 337.6332774959725 0.0001026 deg
peri 240.7681848167803 0.00010411 deg
M 266.6686160659876 1.9177e-05 deg
tp 2459402.287053403365
(2021-Jul-06.78705340)
8.3192e-05 TDB
period 1549.782432536067
4.24
9.5479e-06
2.614e-08
d
yr
n .2322906702529175 1.4311e-09 deg/d
Q 2.895842262521711 1.1894e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1753  
   data-arc span      9600 days (26.28 yr)  
   first obs. used      1993-10-20  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51021  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:18:38  

Additional Information
 Earth MOID = 1.3394 au 
 Jupiter MOID = 2.08176 au 
 T_jup = 3.396 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456505.5 (2013-Aug-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1053991568381727 4.0411e-08  
q 2.344547144352943 1.0545e-07 au
tp 2456305.850128036221
(2013-Jan-13.35012804)
8.0226e-05 TDB
node 337.700158944423 0.00010245 deg
peri 241.2741003153054 0.00010397 deg
i 2.296595629438068 4.1396e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1753  
   data-arc span      9600 days (26.28 yr)  
   first obs. used      1993-10-20  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51021  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:18:38  

Additional Information
 Jupiter MOID = 2.08176 au 
 T_jup = 3.396 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.63304115445055E-15 -4.243692100560743E-15 -4.565440233107951E-13 4.345620178147922E-15 -1.024735910722878E-13 -1.040549495117369E-16
q -4.243692100560743E-15 1.111932078295153E-14 1.22141933944323E-12 -1.300309322504053E-14 2.77433027581611E-13 3.559048302969491E-16
tp -4.565440233107951E-13 1.22141933944323E-12 6.436210018279059E-9 1.560342922426281E-11 1.438259405661728E-9 4.09986247584659E-13
node 4.345620178147922E-15 -1.300309322504053E-14 1.560342922426281E-11 1.049631869270905E-8 -1.048432871629962E-8 8.679284453377863E-11
peri -1.024735910722878E-13 2.77433027581611E-13 1.438259405661728E-9 -1.048432871629962E-8 1.080933309092128E-8 -8.661878280741989E-11
i -1.040549495117369E-16 3.559048302969491E-16 4.09986247584659E-13 8.679284453377863E-11 -8.661878280741989E-11 1.713661297300074E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO358781  
diameter diameter 4.379 km 0.661 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.278   0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15447 (1998 XV4)          Discovered 1998-Dec-12 by Kobayashi, T. at Oizumi
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 XV4 = 1993 UD2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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