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80376 (1999 XQ157)
Classification: Main-belt Asteroid          SPK-ID: 2080376
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04599175612009208 4.6837e-08  
a 2.270606809146115 1.2035e-08 au
q 2.166177614535246 1.0819e-07 au
i 6.075651787567426 5.5487e-06 deg
node 231.6678946329725 4.4246e-05 deg
peri 271.5260702648324 7.8339e-05 deg
M 300.4376321831616 6.7088e-05 deg
tp 2459207.266789345367
(2020-Dec-23.76678935)
0.0002335 TDB
period 1249.716001775352
3.42
9.9356e-06
2.72e-08
d
yr
n .2880654480606653 2.2902e-09 deg/d
Q 2.375036003756983 1.2588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      555  
   data-arc span      7622 days (20.87 yr)  
   first obs. used      1999-12-08  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:19:49  

Additional Information
 Earth MOID = 1.18804 au 
 Jupiter MOID = 2.63216 au 
 T_jup = 3.604 
[ 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 16.2   n/a MPO502639  

80376 (1999 XQ157)          Discovered 1999-Dec-08 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1999 XQ157 = 2002 TT89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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