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7180 (1991 NG1)
Classification: Main-belt Asteroid          SPK-ID: 2007180
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1119730836219223 8.0424e-08  
a 3.007772220271632 3.0767e-08 au
q 2.670982689935461 2.4872e-07 au
i 9.03798697224606 7.6806e-06 deg
node 307.5070498752804 4.2426e-05 deg
peri 43.45128740470805 5.0254e-05 deg
M 257.6247928590316 2.8297e-05 deg
tp 2458142.323871871184
(2018-Jan-23.82387187)
0.00015275 JED
period 1905.310859152039
5.22
2.9234e-05
8.004e-08
d
yr
n .1889455456944272 2.8991e-09 deg/d
Q 3.344561750607802 3.4212e-08 au
  Orbit Determination Parameters
   # obs. used (total)      878  
   data-arc span      12169 days (33.32 yr)  
   first obs. used      1982-12-22  
   last obs. used      2016-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50216  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:58:18  

Additional Information
 Earth MOID = 1.67172 au 
 Jupiter MOID = 2.05746 au 
 T_jup = 3.222 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO337315  

7180 (1991 NG1)          Discovered 1991-Jul-12 by Holt, H. E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1991 NG1 = 1982 YR = 1990 HV2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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