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JPL Small-Body Database Browser
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185695 (1997 US12)
Classification: Main-belt Asteroid          SPK-ID: 2185695
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06557162258221096 5.6273e-08  
a 2.653136989193678 2.4645e-08 au
q 2.479166491879367 1.4676e-07 au
i 2.415248883130678 6.9365e-06 deg
node 24.34648466271598 0.00016941 deg
peri 60.61883359290024 0.00018575 deg
M 36.96064563881 7.3638e-05 deg
tp 2458838.440316362675
(2019-Dec-20.94031636)
0.00032234 TDB
period 1578.475838316424
4.32
2.1994e-05
6.022e-08
d
yr
n .2280681092869753 3.1778e-09 deg/d
Q 2.82710748650799 2.6261e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      7645 days (20.93 yr)  
   first obs. used      1997-10-11  
   last obs. used      2018-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58237  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 12:00:38  

Additional Information
 Earth MOID = 1.49636 au 
 Jupiter MOID = 2.29848 au 
 T_jup = 3.385 
[ 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 16.9   n/a MPO454278  

185695 (1997 US12)          Discovered 1997-Oct-23 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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