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JPL Small-Body Database Browser
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26973 Lala (1997 SP25)
Classification: Main-belt Asteroid          SPK-ID: 2026973
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09236949747356682 3.6182e-08  
a 2.697115803826452 1.1732e-08 au
q 2.447984572398987 9.8225e-08 au
i 4.585833526925313 4.4122e-06 deg
node 172.0505810278737 4.6824e-05 deg
peri 162.0410206702021 5.2386e-05 deg
M 82.1560090475063 2.2901e-05 deg
tp 2458631.280482129542
(2019-May-27.78048213)
0.00010312 TDB
period 1617.885629723141
4.43
1.0556e-05
2.89e-08
d
yr
n .2225126383387216 1.4519e-09 deg/d
Q 2.946247035253917 1.2816e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1089  
   data-arc span      10526 days (28.82 yr)  
   first obs. used      1991-04-10  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53984  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:54:45  

Additional Information
 Earth MOID = 1.4385 au 
 Jupiter MOID = 2.36622 au 
 T_jup = 3.358 
[ 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 15.0   n/a MPO347724  
diameter diameter 4.549 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.094   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26973 Lála           Discovered 1997 Sept. 29 by P. Pravec and M. Wolf at Ondřejov.
Petr Lála (b. 1942) started his career in 1964 as an astronomer at the Ondřejov observatory. There he analyzed various effects influencing the motion of artificial satellites and popularized astronautics. From 1989 to 2002 he served in the Office of Outer Space Affairs of the United Nations.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040107/MPCPages.arcLast Updated: 2004-01-07

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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