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(2018 GN1)
Classification: Apollo [NEO]          SPK-ID: 3802425
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4723964672897772 0.00038629  
a 1.765509129138394 0.0012183 au
q .9314888535655653 3.9239e-05 au
i 1.454228985044716 0.00091827 deg
node 190.1889479823604 0.0010492 deg
peri 330.3322246435422 0.0010143 deg
M 341.6389143029832 0.35542 deg
tp 2459044.201790932359
(2020-Jul-13.70179093)		 0.89118 TDB
period 856.8471927673354
2.35		 0.88688
0.002428		 d
yr
n .4201449255348764 0.00043487 deg/d
Q 2.599529404711222 0.0017938 au
   Orbit Determination Parameters
   # obs. used (total)      25  
   data-arc span      5 days  
   first obs. used      2018-04-10  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .73884  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Apr-16 06:28:24  

Additional Information
 Earth MOID = .00390164 au 
 Jupiter MOID = 2.38955 au 
 T_jup = 3.974 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 27.4   n/a MPO445227  

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2011-May-07 15:49 8_00:59 Earth 0.304376106315735 0.169288567434664 0.439539111269127 17.9688867316328 17.9683995549253 2455689.159356401 11578.6526567753 6742388.34982496 15.6332544798732 -1.86836832470554 81555.0622351122 T 3 CATAB v2.0e-lin.ifort 2018-Apr-16 06:28:26 2018-Dec-11 17:20
2018-Apr-09 21:33 < 00:01 Earth 0.0051268380970956 0.00511530388961431 0.00513837161440779 8.83179241382247 8.77274946745887 2458218.397728814 0.0595619825263125 567.394531861688 2.01940254426774 -0.0386382070519788 821.584792500021 T 3 CATAB v2.0e-lin.ifort 2018-Apr-16 06:28:26 2018-Dec-11 17:20
2018-Apr-10 00:25 < 00:01 Moon 0.00702038239053283 0.00700940131815447 0.00703136501277051 9.77642610452044 9.77594858790525 2458218.517479336 0.279600259377341 571.791521986339 1.94092136108269 16.7429032619272 145195.131573446 T 3 CATAB v2.0e-lin.ifort 2018-Apr-16 06:28:26 2018-Dec-11 17:20
2025-May-02 12:34 8_23:48 Earth 0.223939028914614 0.0882039223788791 0.359780386173398 15.6181347661309 15.6173729257427 2460798.023431967 12948.2105295466 6775578.11993278 13.6230247597431 -1.71854362695019 62697.3882680818 T 3 CATAB v2.0e-lin.ifort 2018-Apr-16 06:28:26 2018-Dec-11 17:20
2079-Feb-09 04:43 7_01:53 Earth 0.0454322883306103 0.0346245304793879 0.0566433533394743 7.74180008621404 7.73422097240531 2480438.696820808 10192.5353959634 589156.426227565 58.4380182287878 -20.5787097977641 41497.9514220283 T 3 CATAB v2.0e-lin.ifort 2018-Apr-16 06:28:26 2018-Dec-11 17:20
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