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30973 (1995 DS8)
Classification: Main-belt Asteroid          SPK-ID: 2030973
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1536947944190994 3.5486e-08  
a 2.426817879870582 9.3925e-09 au
q 2.053828604731278 8.5748e-08 au
i 2.285437573724878 4.147e-06 deg
node 4.84181252331105 8.2076e-05 deg
peri 142.0478448841425 8.292e-05 deg
M 310.0281394441185 1.371e-05 deg
tp 2459392.180187057332
(2021-Jun-26.68018706)
5.3224e-05 TDB
period 1380.874487622371
3.78
8.0166e-06
2.195e-08
d
yr
n .2607043603360782 1.5135e-09 deg/d
Q 2.799807155009885 1.0836e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1252  
   data-arc span      10014 days (27.42 yr)  
   first obs. used      1993-10-10  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51497  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:43:30  

Additional Information
 Earth MOID = 1.06594 au 
 Jupiter MOID = 2.20304 au 
 T_jup = 3.493 
[ 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 15.25   n/a MPCxxxxx  
diameter diameter 2.000 km 0.582 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.367   0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30973 (1995 DS8)          Discovered 1995-Feb-24 by Spacewatch at Kitt Peak
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 DS8 = 1999 GE49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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