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385192 (1997 TR12)
Classification: Main-belt Asteroid          SPK-ID: 2385192
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .179349962087312 1.9211e-07  
a 2.902133744689029 2.2734e-08 au
q 2.381636167606743 5.5259e-07 au
i 1.318908282133635 1.0109e-05 deg
node 272.1671799543874 0.00049005 deg
peri 86.24093839806703 0.00049249 deg
M 265.1081307811079 5.1367e-05 deg
tp 2459676.493543893632
(2022-Apr-06.99354389)
0.0002607 TDB
period 1805.82042710559
4.94
2.1219e-05
5.809e-08
d
yr
n .1993553703327059 2.3425e-09 deg/d
Q 3.422631321771315 2.6811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      8238 days (22.55 yr)  
   first obs. used      1997-10-02  
   last obs. used      2020-04-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58628  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:04:30  

Additional Information
 Earth MOID = 1.3767 au 
 Jupiter MOID = 2.03548 au 
 T_jup = 3.262 
[ 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 16.7   n/a MPC37070  

385192 (1997 TR12)          Discovered 1997-Oct-02 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-02-19

[ show close-approach data ]
Alternate Designations
 1997 TR12 = 2002 TW299 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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