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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1116635886074307 8.8194e-08  
a 3.008728419645961 3.1592e-08 au
q 2.672763007163129 2.6938e-07 au
i 9.037993977048064 8.2545e-06 deg
node 307.5209369311452 4.297e-05 deg
peri 43.33514386267851 5.1591e-05 deg
M 219.9326807510825 2.8805e-05 deg
tp 2458142.164044738938
(2018-Jan-23.66404474)
0.00015591 JED
period 1906.219506004296
5.22
3.0023e-05
8.22e-08
d
yr
n .1888554801092192 2.9745e-09 deg/d
Q 3.344693832128793 3.512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      838  
   data-arc span      11810 days (32.33 yr)  
   first obs. used      1982-12-22  
   last obs. used      2015-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50342  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:57:27  

Additional Information
 Earth MOID = 1.67235 au 
 Jupiter MOID = 2.05558 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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