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24698 (1990 TU4)
Classification: Main-belt Asteroid          SPK-ID: 2024698
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09829368973985031 1.9418e-08  
a 2.622628270534685 1.2763e-08 au
q 2.364840461007788 5.1859e-08 au
i 14.66392568858917 5.6634e-07 deg
node 333.483934718192 1.7012e-06 deg
peri 217.5509271852485 8.1576e-06 deg
M 194.1661466872699 1.0215e-05 deg
tp 2459915.118451882834
(2022-Dec-01.61845188)
4.7601e-05 TDB
period 1551.327654388355
4.25
1.1324e-05
3.1e-08
d
yr
n .2320592938452695 1.694e-09 deg/d
Q 2.880416080061581 1.4018e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2051  
   data-arc span      26035 days (71.28 yr)  
   first obs. used      1949-11-25  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43811  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:47:26  

Additional Information
 Earth MOID = 1.38293 au 
 Jupiter MOID = 2.14064 au 
 T_jup = 3.351 
[ 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 13.50   n/a E2021B10  
diameter diameter 5.527 km 0.236 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.333   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24698 (1990 TU4)          Discovered 1990-Oct-09 by McNaught, R. H. at Siding Spring
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 TU4 = 1999 TQ187 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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