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181873 (1999 GY12)
Classification: Main-belt Asteroid          SPK-ID: 2181873
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1021155711490752 7.3178e-08  
a 2.756035068984804 2.132e-08 au
q 2.47460097380854 2.0588e-07 au
i 11.72618293361515 7.7107e-06 deg
node 213.4048908017224 2.4097e-05 deg
peri 324.5424109291554 3.648e-05 deg
M 289.124878085619 2.9032e-05 deg
tp 2459529.515875785388
(2021-Nov-11.01587579)
0.00013582 TDB
period 1671.188875354955
4.58
1.9392e-05
5.309e-08
d
yr
n .2154155076717688 2.4996e-09 deg/d
Q 3.037469164161068 2.3497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      309  
   data-arc span      10289 days (28.17 yr)  
   first obs. used      1992-11-17  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54913  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:24  

Additional Information
 Earth MOID = 1.48518 au 
 Jupiter MOID = 1.9602 au 
 T_jup = 3.306 
[ 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 16.04   n/a MPCxxxxx  

181873 (1999 GY12)          Discovered 1999-Apr-12 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 1999 GY12 = 2001 UH134 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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