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49927 (1999 XG176)
Classification: Main-belt Asteroid          SPK-ID: 2049927
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1603339644148186 3.9397e-08  
a 2.426113358906918 8.1693e-09 au
q 2.03712498595362 9.5929e-08 au
i 6.032347284521759 3.6442e-06 deg
node 59.33809185087262 3.9847e-05 deg
peri 104.4399079901891 4.131e-05 deg
M 109.3214197880672 1.171e-05 deg
tp 2458581.351589796829
(2019-Apr-07.85158980)
4.4268e-05 TDB
period 1380.273216041895
3.78
6.9715e-06
1.909e-08
d
yr
n .2608179277957337 1.3174e-09 deg/d
Q 2.815101731860215 9.4791e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1672  
   data-arc span      8949 days (24.50 yr)  
   first obs. used      1996-03-20  
   last obs. used      2020-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50526  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:30:07  

Additional Information
 Earth MOID = 1.05446 au 
 Jupiter MOID = 2.17734 au 
 T_jup = 3.485 
[ 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 MPO474380  

49927 (1999 XG176)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XG176 = 1998 SG95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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