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103127 (1999 XR194)
Classification: Main-belt Asteroid          SPK-ID: 2103127
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1587856701974014 5.9155e-08  
a 2.428570123696022 1.3405e-08 au
q 2.042947988983563 1.3918e-07 au
i 6.174795288803813 4.452e-06 deg
node 319.3440624011711 4.1915e-05 deg
peri 47.13723396729046 4.4785e-05 deg
M 263.4943629521515 2.1107e-05 deg
tp 2459571.073688308266
(2021-Dec-22.57368831)
8.3409e-05 TDB
period 1382.370314024574
3.78
1.1446e-05
3.134e-08
d
yr
n .2604222590341305 2.1562e-09 deg/d
Q 2.814192258408482 1.5534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      7467 days (20.44 yr)  
   first obs. used      1999-12-12  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53135  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:50:33  

Additional Information
 Earth MOID = 1.04502 au 
 Jupiter MOID = 2.66446 au 
 T_jup = 3.484 
[ 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 15.37   n/a E2021B55  
diameter diameter 1.976 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.453   0.192 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

103127 (1999 XR194)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 XR194 = 2002 KE3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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