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8312 (1996 TJ12)
Classification: Main-belt Asteroid          SPK-ID: 2008312
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 .09113457505530524 2.4211e-08  
a 3.061629501327672 1.711e-08 au
q 2.782609197747389 7.9663e-08 au
i 10.09439171104036 1.038e-06 deg
node 38.71344527318531 4.078e-06 deg
peri 289.4354464093876 1.3266e-05 deg
M 238.8232700644201 1.2796e-05 deg
tp 2459859.133938611685
(2022-Oct-06.63393861)
7.082e-05 TDB
period 1956.714115212207
5.36
1.6402e-05
4.491e-08
d
yr
n .1839819098769867 1.5423e-09 deg/d
Q 3.340649804907955 1.8669e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1991  
   data-arc span      11149 days (30.52 yr)  
   first obs. used      1990-09-14  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49698  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:52:45  

Additional Information
 Earth MOID = 1.79137 au 
 Jupiter MOID = 2.00404 au 
 T_jup = 3.204 
[ 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 13.01   n/a E2021B10  
diameter diameter 9.203 km 0.272 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.190   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8312 (1996 TJ12)          Discovered 1996-Oct-15 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1996 TJ12 = 1990 RP11 = 1994 GH10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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