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285540 (2000 GU127)
Classification: Apollo [NEO]          SPK-ID: 2285540
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 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .72705636938581 6.4007e-08  
a 2.10501277305646 8.7011e-09 au
q .5745498287672741 1.3262e-07 au
i 8.490502358224182 9.2283e-06 deg
node 171.9434872737339 5.4047e-05 deg
peri 138.8310637470831 5.7515e-05 deg
M 186.7957114923114 1.3701e-05 deg
tp 2459537.206271526881
(2021-Nov-18.70627153)
4.571e-05 TDB
period 1115.528139715202
3.05
6.9165e-06
1.894e-08
d
yr
n .3227170944265997 2.0009e-09 deg/d
Q 3.635475717345645 1.5027e-08 au
  Orbit Determination Parameters
   # obs. used (total)      334  
   data-arc span      6867 days (18.80 yr)  
   first obs. used      2000-04-07  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5351  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-31 08:15:39  

Additional Information
 Earth MOID = .108318 au 
 Jupiter MOID = 1.74706 au 
 T_jup = 3.336 
[ 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 18.5   n/a MPO248598  
rotation period rot_per 24. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2000) http://www.asu.cas.cz/~ppravec/neo.htm]
SMASSII spectral type spec_B S:   n/a Binzel et al. (2004) Icarus 170, 259-294 SMASSIR data only, classification consistent with specified type, but uncertain

285540 (2000 GU127)          Discovered 2000-Apr-07 by LONEOS at Anderson Mesa
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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