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26978 (1997 UZ4)
Classification: Main-belt Asteroid          SPK-ID: 2026978
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1965848113300153 4.5878e-08  
a 3.097961987695778 1.7707e-08 au
q 2.488949714837044 1.4487e-07 au
i 5.18852527949011 5.5948e-06 deg
node 46.6481049623101 5.0068e-05 deg
peri 11.61379098066006 5.175e-05 deg
M 12.51184001031356 1.1984e-05 deg
tp 2458531.280057303095
(2019-Feb-16.78005730)
6.625e-05 TDB
period 1991.647859175373
5.45
1.7076e-05
4.675e-08
d
yr
n .1807548449599194 1.5497e-09 deg/d
Q 3.706974260554512 2.1188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1555  
   data-arc span      22269 days (60.97 yr)  
   first obs. used      1958-11-11  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50017  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:56:49  

Additional Information
 Earth MOID = 1.50106 au 
 Jupiter MOID = 1.65989 au 
 T_jup = 3.187 
[ 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 13.2   n/a MPO452547  
diameter diameter 7.998 km 0.271 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.159   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26978 (1997 UZ4)          Discovered 1997-Oct-20 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 UZ4 = 1958 VQ = 1999 GY44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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