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30959 (1994 TG9)
Classification: Main-belt Asteroid          SPK-ID: 2030959
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1254736031865588 3.3406e-08  
a 2.305310417267681 9.814e-09 au
q 2.016054812749596 7.8287e-08 au
i 6.366816242074665 3.8654e-06 deg
node 201.1500611338327 3.6194e-05 deg
peri 11.39740613006328 3.9649e-05 deg
M 345.9285351608343 1.6333e-05 deg
tp 2459250.472301907426
(2021-Feb-04.97230191)
5.8049e-05 TDB
period 1278.475900860073
3.50
8.164e-06
2.235e-08
d
yr
n .2815852842887503 1.7981e-09 deg/d
Q 2.594566021785767 1.1045e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1108  
   data-arc span      9623 days (26.35 yr)  
   first obs. used      1994-10-08  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55287  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:43:05  

Additional Information
 Earth MOID = 1.00973 au 
 Jupiter MOID = 2.3677 au 
 T_jup = 3.570 
[ 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 15.46   n/a E2021B10  
diameter diameter 1.836 km 0.532 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.436   0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30959 (1994 TG9)          Discovered 1994-Oct-08 by Spacewatch at Kitt Peak
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 TG9 = 1998 XD85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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