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30964 (1994 WW7)
Classification: Main-belt Asteroid          SPK-ID: 2030964
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1101441860282553 4.3224e-08  
a 2.311842728215512 8.2054e-09 au
q 2.057206692690873 1.0064e-07 au
i 6.089754244057906 4.294e-06 deg
node 161.9773730850987 3.5106e-05 deg
peri 27.48075427718311 3.8485e-05 deg
M 28.38119149313242 1.5417e-05 deg
tp 2459099.280548534312
(2020-Sep-06.78054853)
5.4929e-05 TDB
period 1283.913768612046
3.52
6.8355e-06
1.871e-08
d
yr
n .2803926624988002 1.4928e-09 deg/d
Q 2.566478763740151 9.1092e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1294  
   data-arc span      9306 days (25.48 yr)  
   first obs. used      1994-11-28  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52365  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:43:13  

Additional Information
 Earth MOID = 1.05983 au 
 Jupiter MOID = 2.38941 au 
 T_jup = 3.568 
[ 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 15.3   n/a MPO459079  
diameter diameter 2.358 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.348   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30964 (1994 WW7)          Discovered 1994-Nov-28 by Spacewatch at Kitt Peak
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

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