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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1087627439173502 8.7761e-08  
a 3.013789198411096 3.4582e-08 AU
q 2.686001215603434 2.6606e-07 AU
i 9.046090694147271 8.4066e-06 deg
node 307.5694369922469 4.9114e-05 deg
peri 42.62698766855934 6.2931e-05 deg
M 107.6811380000308 3.5293e-05 deg
tp 2456228.883349532511
(2012-Oct-28.38334953)
0.00018873 JED
period 1911.031012397333
5.23
3.2892e-05
9.005e-08
d
yr
n .1883799884274983 3.2424e-09 deg/d
Q 3.341577181218758 3.8343e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      714  
   data-arc span      11410 days (31.24 yr)  
   first obs. used      1982-12-22  
   last obs. used      2014-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51793  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:54:47  

Additional Information
 Earth MOID = 1.6858 AU 
 T_jup = 3.221 
[ 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 12.9 mag n/a MPO250280  

7180 (1991 NG1)          Discovered 1991-Jul-12 by Holt, H. E. at Palomar (675)
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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