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152978 (2000 GJ147)
Classification: Apollo [NEO, PHA]          SPK-ID: 2152978
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 163 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2367120223270135 3.9349e-08  
a 1.162237745685341 1.2528e-09 au
q .8871220984793742 4.5132e-08 au
i 25.00681135606841 7.473e-06 deg
node 57.86208899399657 4.825e-06 deg
peri 240.7936669977219 1.0857e-05 deg
M 112.7699360701908 1.3606e-05 deg
tp 2459057.138768162028
(2020-Jul-26.63876816)
1.714e-05 TDB
period 457.6578231767949
1.25
7.3996e-07
2.026e-09
d
yr
n .7866138887369806 1.2718e-09 deg/d
Q 1.437353392891307 1.5493e-09 au
  Orbit Determination Parameters
   # obs. used (total)      672  
   data-arc span      7583 days (20.76 yr)  
   first obs. used      2000-04-13  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52451  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-17 06:07:40  

Additional Information
 Earth MOID = .0268074 au 
 Jupiter MOID = 3.75524 au 
 T_jup = 5.309 
[ 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 19.53   n/a E2021B55  
diameter diameter 0.531 km 0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 13.22 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2016) Minor Planet Bull. 43, 143-154.]
geometric albedo albedo 0.109   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
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

152978 (2000 GJ147)          Discovered 2000-Apr-13 by LONEOS at Anderson Mesa
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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