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30824 (1990 TD)
Classification: Main-belt Asteroid          SPK-ID: 2030824
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1808147431623345 2.1078e-08  
a 2.276639539808512 8.2666e-09 au
q 1.86498954614482 4.8658e-08 au
i 5.009846098353804 5.694e-07 deg
node 254.1416910035272 7.4551e-06 deg
peri 74.92620927145886 8.0936e-06 deg
M 302.5450702750684 4.8901e-06 deg
tp 2459400.746362238869
(2021-Jul-05.24636224)
1.8035e-05 TDB
period 1254.699827345039
3.44
6.8338e-06
1.871e-08
d
yr
n .2869212158590669 1.5627e-09 deg/d
Q 2.688289533472203 9.7613e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1960  
   data-arc span      10924 days (29.91 yr)  
   first obs. used      1990-07-28  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .491  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:40:38  

Additional Information
 Earth MOID = .85949 au 
 Jupiter MOID = 2.66248 au 
 T_jup = 3.582 
[ 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 14.28   n/a E2021B10  
diameter diameter 3.550 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.262   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30824 (1990 TD)          Discovered 1990-Oct-09 by McNaught, R. H. at Siding Spring
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 TD = 1999 CU109 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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