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175681 (1995 GU2)
Classification: Main-belt Asteroid          SPK-ID: 2175681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2088793424259435 5.397e-08  
a 2.631466865643235 1.4559e-08 au
q 2.081807797132018 1.4339e-07 au
i 13.8885718623125 6.2057e-06 deg
node 28.49329171223875 2.5079e-05 deg
peri 87.39948675953585 3.4083e-05 deg
M 62.61624823303188 1.7012e-05 deg
tp 2458929.306155671615
(2020-Mar-20.80615567)
7.3851e-05 TDB
period 1559.176519086239
4.27
1.2939e-05
3.543e-08
d
yr
n .230891111810085 1.9161e-09 deg/d
Q 3.181125934154452 1.76e-08 au
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      9464 days (25.91 yr)  
   first obs. used      1995-03-27  
   last obs. used      2021-02-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58347  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:23  

Additional Information
 Earth MOID = 1.15122 au 
 Jupiter MOID = 2.1006 au 
 T_jup = 3.328 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456731.5 (2014-Mar-15.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2083145671267007 5.4465e-08  
q 2.084165562890838 1.4489e-07 au
tp 2457371.339773245686
(2015-Dec-14.83977325)
7.6316e-05 TDB
node 28.52239629620584 2.5091e-05 deg
peri 87.68601853292616 3.407e-05 deg
i 13.8834859956322 6.2038e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      9464 days (25.91 yr)  
   first obs. used      1995-03-27  
   last obs. used      2021-02-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58347  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:23  

Additional Information
 Jupiter MOID = 2.1006 au 
 T_jup = 3.328 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.966479910309569E-15 -7.866439599542921E-15 1.696719032300266E-12 1.236142470768045E-14 5.14831822653828E-13 -2.536226098863845E-14
q -7.866439599542921E-15 2.099425339691911E-14 -4.720573480591849E-12 -2.975101511782924E-14 -1.455175764568972E-12 6.730252160648201E-14
tp 1.696719032300266E-12 -4.720573480591849E-12 5.82406825612416E-9 -1.602325669742902E-11 1.785537526493018E-9 -1.633203691249982E-11
node 1.236142470768045E-14 -2.975101511782924E-14 -1.602325669742902E-11 6.295749828616204E-10 -6.15681297244051E-10 -4.66916958186248E-11
peri 5.14831822653828E-13 -1.455175764568972E-12 1.785537526493018E-9 -6.15681297244051E-10 1.160756096519733E-9 4.013384771364464E-11
i -2.536226098863845E-14 6.730252160648201E-14 -1.633203691249982E-11 -4.66916958186248E-11 4.013384771364464E-11 3.848739468464384E-11

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 16.05   n/a MPCxxxxx  

175681 (1995 GU2)          Discovered 1995-Apr-02 by Spacewatch at Kitt Peak
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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