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JPL Small-Body Database Browser
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71042 (1999 XN77)
Classification: Main-belt Asteroid          SPK-ID: 2071042
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2684109831612132 5.538e-08  
a 2.604605769705744 1.595e-08 au
q 1.905500974311657 1.5033e-07 au
i 14.07294874314955 7.7526e-06 deg
node 94.14095603564596 1.7711e-05 deg
peri 242.5126792527161 2.1701e-05 deg
M 299.5974729416613 1.3132e-05 deg
tp 2458858.110779693615
(2020-Jan-09.61077969)
5.7146e-05 TDB
period 1535.36425057399
4.20
1.4103e-05
3.861e-08
d
yr
n .234472047831917 2.1538e-09 deg/d
Q 3.303710565099832 2.0231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      729  
   data-arc span      7746 days (21.21 yr)  
   first obs. used      1998-06-03  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55814  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:39:34  

Additional Information
 Earth MOID = .938732 au 
 Jupiter MOID = 2.1917 au 
 T_jup = 3.320 
[ 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 14.8   n/a MPO337798  
diameter diameter 6.413 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71042 (1999 XN77)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XN77 = 1998 MF22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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