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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1096617648296511 8.7684e-08  
a 3.013919017894514 3.1914e-08 AU
q 2.683407339338553 2.674e-07 AU
i 9.045793094914707 8.2561e-06 deg
node 307.5668299047674 4.2858e-05 deg
peri 43.00357490106168 5.1884e-05 deg
M 144.843764895207 2.918e-05 deg
tp 2456231.558856304526
(2012-Oct-31.05885630)
0.00015312 JED
period 1911.154490706909
5.23
3.0355e-05
8.311e-08
d
yr
n .1883678173326747 2.9919e-09 deg/d
Q 3.344430696450475 3.5414e-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 = 1.68512 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 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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