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26981 (1997 UJ15)
Classification: Main-belt Asteroid          SPK-ID: 2026981
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1095166779198397 3.3104e-08  
a 2.691356068920142 1.2106e-08 au
q 2.396607693152609 9.1058e-08 au
i 1.587209986995506 3.297e-06 deg
node 243.7329900417183 0.00014301 deg
peri 127.7094656363969 0.00014426 deg
M 330.031795779967 1.8074e-05 deg
tp 2458734.749718696803
(2019-Sep-08.24971870)
8.1203e-05 TDB
period 1612.705865723564
4.42
1.0881e-05
2.979e-08
d
yr
n .2232273148200405 1.5062e-09 deg/d
Q 2.986104444687675 1.3432e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1129  
   data-arc span      8057 days (22.06 yr)  
   first obs. used      1997-10-09  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49315  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:56:49  

Additional Information
 Earth MOID = 1.39605 au 
 Jupiter MOID = 2.48002 au 
 T_jup = 3.363 
[ 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 14.9   n/a MPO452547  
diameter diameter 2.697 km 0.365 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.320   0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26981 (1997 UJ15)          Discovered 1997-Oct-25 by Laurie, S. P. at Church Stretton
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 UJ15 = 2000 JK13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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