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15494 (1999 CX123)
Classification: Main-belt Asteroid          SPK-ID: 2015494
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1333969360323341 3.8249e-08  
a 2.665373840561303 1.2363e-08 au
q 2.309821136849691 9.926e-08 au
i 15.10674688886052 4.3266e-06 deg
node 45.82253341668047 1.4556e-05 deg
peri 309.7689857426405 2.0974e-05 deg
M 97.03345823214624 1.5768e-05 deg
tp 2458572.094899966284
(2019-Mar-29.59489997)
6.9078e-05 TDB
period 1589.408837137006
4.35
1.1058e-05
3.028e-08
d
yr
n .2264993069048655 1.5758e-09 deg/d
Q 3.020926544272916 1.4012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1566  
   data-arc span      22626 days (61.95 yr)  
   first obs. used      1958-11-11  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:33:17  

Additional Information
 Earth MOID = 1.33786 au 
 Jupiter MOID = 2.50747 au 
 T_jup = 3.322 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456896.5 (2014-Aug-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1348198983808533 3.8519e-08  
q 2.305542649333569 1.0011e-07 au
tp 2456978.297048890769
(2014-Nov-16.79704889)
6.6753e-05 TDB
node 45.88617422185219 1.4583e-05 deg
peri 308.7750430154724 2.0776e-05 deg
i 15.09631190243476 4.3231e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1566  
   data-arc span      22626 days (61.95 yr)  
   first obs. used      1958-11-11  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:33:17  

Additional Information
 Jupiter MOID = 2.50747 au 
 T_jup = 3.322 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.483730300718003E-15 -3.836051181110867E-15 3.35766147139371E-13 4.945554065686367E-15 3.649892748061605E-14 -2.839306036535115E-15
q -3.836051181110867E-15 1.002103054272056E-14 -8.755169547323648E-13 -1.2552097426636E-14 -9.750040626875995E-14 7.904175417445005E-15
tp 3.35766147139371E-13 -8.755169547323648E-13 4.455997319657266E-9 1.720062563008058E-11 1.000367839551379E-9 -1.940002613739635E-12
node 4.945554065686367E-15 -1.2552097426636E-14 1.720062563008058E-11 2.126609440146036E-10 -2.011670099633243E-10 -1.912964423680248E-12
peri 3.649892748061605E-14 -9.750040626875995E-14 1.000367839551379E-9 -2.011670099633243E-10 4.316385869157034E-10 1.395748355259445E-12
i -2.839306036535115E-15 7.904175417445005E-15 -1.940002613739635E-12 -1.912964423680248E-12 1.395748355259445E-12 1.868879667894445E-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 MPO502288  
diameter diameter 11.456 km 0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15494 (1999 CX123)          Discovered 1999-Feb-11 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CX123 = 1958 VO = 1984 US4 = 2000 GE107 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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