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26994 (1997 XU1)
Classification: Main-belt Asteroid          SPK-ID: 2026994
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .144889356253251 5.5489e-08  
a 2.959754227431203 1.6509e-08 au
q 2.530917342750857 1.6216e-07 au
i 11.66012000749047 3.923e-06 deg
node 95.74315869221951 2.5596e-05 deg
peri 272.7707883942212 2.8491e-05 deg
M 120.6341275595284 1.338e-05 deg
tp 2457977.268224003790
(2017-Aug-11.76822400)
6.8125e-05 TDB
period 1859.867053358682
5.09
1.5561e-05
4.26e-08
d
yr
n .1935622222835154 1.6195e-09 deg/d
Q 3.388591112111548 1.8901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1418  
   data-arc span      15528 days (42.51 yr)  
   first obs. used      1976-11-16  
   last obs. used      2019-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53252  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:01:06  

Additional Information
 Earth MOID = 1.56305 au 
 Jupiter MOID = 2.20283 au 
 T_jup = 3.220 
[ 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 13.5   n/a MPO337487  
diameter diameter 6.704 km 0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.298   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26994 (1997 XU1)          Discovered 1997-Dec-02 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 XU1 = 1999 CD102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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