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249595 (1997 GH28)
Classification: Amor [NEO]          SPK-ID: 2249595
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 128 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3717064832843974 4.0722e-08  
a 2.003700010884192 8.1309e-09 au
q 1.25891172628152 7.9855e-08 au
i 7.012304136614803 5.3651e-06 deg
node 354.4496602340269 2.8483e-05 deg
peri 105.1933131142272 2.9879e-05 deg
M 98.70900208947522 8.8406e-06 deg
tp 2458716.445457798982
(2019-Aug-20.94545780)
2.409e-05 TDB
period 1035.970712171448
2.84
6.3059e-06
1.726e-08
d
yr
n .3475001713566028 2.1152e-09 deg/d
Q 2.748488295486865 1.1153e-08 au
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      9725 days (26.63 yr)  
   first obs. used      1993-10-09  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45962  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-26 08:21:09  

Additional Information
 Earth MOID = .305023 au 
 Jupiter MOID = 2.46837 au 
 T_jup = 3.740 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO454851  
rotation period rot_per 19.696 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 113-124.]

249595 (1997 GH28)          Discovered 1997-Apr-13 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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