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49394 (1998 XT29)
Classification: Main-belt Asteroid          SPK-ID: 2049394
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04870936411164151 4.8579e-08  
a 2.650517867095475 1.7493e-08 au
q 2.52141282722271 1.334e-07 au
i 20.96471109312025 5.1208e-06 deg
node 280.9784564159401 1.8267e-05 deg
peri 173.9595482033086 7.9781e-05 deg
M 237.2292611710237 7.7073e-05 deg
tp 2459138.010434821542
(2020-Oct-15.51043482)
0.00033844 TDB
period 1576.139057086821
4.32
1.5603e-05
4.272e-08
d
yr
n .2284062426987809 2.2611e-09 deg/d
Q 2.77962290696824 1.8345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      861  
   data-arc span      8196 days (22.44 yr)  
   first obs. used      1997-06-26  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52142  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:19:23  

Additional Information
 Earth MOID = 1.53882 au 
 Jupiter MOID = 2.39761 au 
 T_jup = 3.294 
[ 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 14.5   n/a MPO452841  
diameter diameter 3.080 km 0.629 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.324   0.184 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49394 (1998 XT29)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XT29 = 1997 MF7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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