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85764 (1998 TT12)
Classification: Main-belt Asteroid          SPK-ID: 2085764
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1842526084668504 3.3605e-08  
a 3.172541955590492 1.993e-08 au
q 2.587992824802421 1.093e-07 au
i .1984492736009404 3.9e-06 deg
node 86.51276562051308 0.0012296 deg
peri 205.2937232594534 0.0012296 deg
M 24.49452499080794 1.1327e-05 deg
tp 2458860.064789618632
(2020-Jan-11.56478962)
6.4656e-05 TDB
period 2063.999026568783
5.65
1.9449e-05
5.325e-08
d
yr
n .1744186869111408 1.6435e-09 deg/d
Q 3.757091086378563 2.3602e-08 au
  Orbit Determination Parameters
   # obs. used (total)      696  
   data-arc span      8903 days (24.38 yr)  
   first obs. used      1996-03-16  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:57:17  

Additional Information
 Earth MOID = 1.57179 au 
 Jupiter MOID = 1.43885 au 
 T_jup = 3.175 
[ 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 14.8   n/a MPO436375  

85764 (1998 TT12)          Discovered 1998-Oct-13 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 TT12 = 2002 JG55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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