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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3252029900615018 5.5913e-08  
a 2.697506264133467 1.6657e-08 au
q 1.820269161327632 1.559e-07 au
i 13.35214528605168 6.1687e-06 deg
node 228.73933759133 2.6526e-05 deg
peri 118.9555586081016 2.9072e-05 deg
M 270.7097317951754 1.3951e-05 deg
tp 2459001.868926028400
(2020-Jun-01.36892603)
6.5561e-05 TDB
period 1618.236973359394
4.43
1.4989e-05
4.104e-08
d
yr
n .2224643274913282 2.0605e-09 deg/d
Q 3.574743366939302 2.2073e-08 au
  Orbit Determination Parameters
   # obs. used (total)      551  
   data-arc span      10792 days (29.55 yr)  
   first obs. used      1989-10-23  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53288  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:40:49  

Additional Information
 Earth MOID = .856866 au 
 Jupiter MOID = 2.09835 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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