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80291 (1999 XB55)
Classification: Main-belt Asteroid          SPK-ID: 2080291
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1198365413994634 4.4007e-08  
a 2.179980060417792 7.3367e-09 au
q 1.91873878965753 9.5463e-08 au
i 1.673104200411739 3.237e-06 deg
node 85.23954322903319 0.00016214 deg
peri 269.4541649106593 0.0001627 deg
M 192.1659535250476 1.4436e-05 deg
tp 2459548.593653788864
(2021-Nov-30.09365379)
4.7856e-05 TDB
period 1175.64772767031
3.22
5.935e-06
1.625e-08
d
yr
n .3062141758342731 1.5458e-09 deg/d
Q 2.441221331178054 8.2159e-09 au
  Orbit Determination Parameters
   # obs. used (total)      701  
   data-arc span      9595 days (26.27 yr)  
   first obs. used      1994-01-10  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52498  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:48:59  

Additional Information
 Earth MOID = .914612 au 
 Jupiter MOID = 2.95577 au 
 T_jup = 3.672 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO453225  

80291 (1999 XB55)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1999 XB55 = 1997 AC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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