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19357 (1997 GZ7)
Classification: Main-belt Asteroid          SPK-ID: 2019357
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03517436567940106 3.367e-08  
a 3.165320641435556 2.2538e-08 au
q 3.053982495701145 1.0891e-07 au
i 13.85394012561955 5.6212e-06 deg
node 41.01722998560987 1.5537e-05 deg
peri 275.4405434104097 8.244e-05 deg
M 338.1734612079821 8.1796e-05 deg
tp 2459325.211746862027
(2021-Apr-20.71174686)
0.00046762 TDB
period 2056.955951566119
5.63
2.1969e-05
6.015e-08
d
yr
n .1750159013983281 1.8692e-09 deg/d
Q 3.276658787169966 2.3331e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1386  
   data-arc span      11614 days (31.80 yr)  
   first obs. used      1988-11-04  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52325  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:52:31  

Additional Information
 Earth MOID = 2.082 au 
 Jupiter MOID = 1.83031 au 
 T_jup = 3.157 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456939.5 (2014-Oct-09.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03355871784454113 3.4629e-08  
q 3.055322333421472 1.1091e-07 au
tp 2457296.296594103043
(2015-Sep-30.79659410)
0.00047789 TDB
node 41.10476743704263 1.552e-05 deg
peri 279.698647595767 8.4991e-05 deg
i 13.86848057559414 5.6249e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1386  
   data-arc span      11614 days (31.80 yr)  
   first obs. used      1988-11-04  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52325  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:52:31  

Additional Information
 Jupiter MOID = 1.83031 au 
 T_jup = 3.157 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.199188150124695E-15 -3.763481645710745E-15 4.793421305031906E-12 -1.770777476735807E-15 8.318005096128136E-13 1.744497154361191E-16
q -3.763481645710745E-15 1.230123591136984E-14 -1.363417825233314E-11 6.449066524368618E-15 -2.380551901031764E-12 -3.952133929890683E-17
tp 4.793421305031906E-12 -1.363417825233314E-11 2.28380860314217E-7 -1.864345118550943E-11 3.994553050537427E-8 1.017864799089031E-11
node -1.770777476735807E-15 6.449066524368618E-15 -1.864345118550943E-11 2.408623895732269E-10 -2.368536443244042E-10 -1.367872666854208E-11
peri 8.318005096128136E-13 -2.380551901031764E-12 3.994553050537427E-8 -2.368536443244042E-10 7.223532741043466E-9 1.502278254737985E-11
i 1.744497154361191E-16 -3.952133929890683E-17 1.017864799089031E-11 -1.367872666854208E-11 1.502278254737985E-11 3.163925252958623E-11

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 13.52   n/a E2021B10  
diameter diameter 10.141 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.03 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:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.082   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19357 (1997 GZ7)          Discovered 1997-Apr-02 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1997 GZ7 = 1988 VK5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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