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49426 (1998 XP80)
Classification: Main-belt Asteroid          SPK-ID: 2049426
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3245747482227141 3.4693e-08  
a 2.697279362404749 1.0466e-08 au
q 1.821810592465905 9.1084e-08 au
i 13.34493000947475 5.8338e-06 deg
node 228.7177830112261 1.7068e-05 deg
peri 118.9056949086266 2.0577e-05 deg
M 359.6963581553663 9.3077e-06 deg
tp 2459001.864729066657
(2020-Jun-01.36472907)
4.1838e-05 TDB
period 1618.032799758326
4.43
9.4175e-06
2.578e-08
d
yr
n .2224923994456544 1.295e-09 deg/d
Q 3.572748132343594 1.3863e-08 au
  Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      11329 days (31.02 yr)  
   first obs. used      1989-10-23  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45881  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:32:42  

Additional Information
 Earth MOID = .859182 au 
 Jupiter MOID = 2.10326 au 
 T_jup = 3.254 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO347862  
diameter diameter 4.261 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.223   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49426 (1998 XP80)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 XP80 = 1989 UJ4 = 1997 LL11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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