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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1097961225148563 3.2303e-08  
a 2.69216355303761 1.1046e-08 au
q 2.396574433738262 8.7926e-08 au
i 1.587126019916554 3.2424e-06 deg
node 243.7341440161916 0.00013505 deg
peri 127.7682139046099 0.00013627 deg
M 59.24566737429234 1.6847e-05 deg
tp 2458734.975449276642
(2019-Sep-08.47544928)
7.5269e-05 TDB
period 1613.431707275971
4.42
9.9296e-06
2.719e-08
d
yr
n .2231268905752473 1.3732e-09 deg/d
Q 2.987752672336958 1.2258e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1199  
   data-arc span      8145 days (22.30 yr)  
   first obs. used      1997-10-09  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48424  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:55:00  

Additional Information
 Earth MOID = 1.39687 au 
 Jupiter MOID = 2.48176 au 
 T_jup = 3.362 
[ 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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