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JPL Small-Body Database Browser
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49404 (1998 XN45)
Classification: Main-belt Asteroid          SPK-ID: 2049404
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 .09315596800094184 3.9384e-08  
a 2.765548328924414 1.5465e-08 au
q 2.507920997290074 1.1008e-07 au
i 3.375485132026174 4.7644e-06 deg
node 53.0561330093979 7.1847e-05 deg
peri 316.0543495914546 7.599e-05 deg
M 227.3926787801596 2.5631e-05 deg
tp 2459219.278630031237
(2021-Jan-04.77863003)
0.00012092 TDB
period 1679.849232773102
4.60
1.409e-05
3.858e-08
d
yr
n .2143049465252965 1.7975e-09 deg/d
Q 3.023175660558755 1.6905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1053  
   data-arc span      10261 days (28.09 yr)  
   first obs. used      1991-04-10  
   last obs. used      2019-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53962  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:40:46  

Additional Information
 Earth MOID = 1.50776 au 
 Jupiter MOID = 2.43358 au 
 T_jup = 3.331 
[ 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 14.3   n/a MPO395468  
diameter diameter 5.346 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.142   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49404 (1998 XN45)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XN45 = 2000 GK158 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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