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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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 
[ show covariance matrix ]

[ 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

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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
2152-Dec-19 20:13 00:03 Amphi 0.0261343605478395 0.0261122845083894 0.0261564368741653 4.18343181022453 4.18343175764358 2507415.342416756 2.88974654155516 1108.73780666827 34.8144121176901 -7.06844838390485 14245.6723601703 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 02:33:22 2020-Nov-13 02:33

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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