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157872 (1999 GJ6)
Classification: Main-belt Asteroid          SPK-ID: 2157872
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1370257838674886 3.855e-08  
a 2.547733172196865 1.4237e-08 au
q 2.198628037191386 9.5008e-08 au
i 13.74948711718635 6.8283e-06 deg
node 18.8752710115531 2.3762e-05 deg
peri 221.3843407227847 3.9972e-05 deg
M 45.16052989003325 3.2362e-05 deg
tp 2458814.168676905845
(2019-Nov-26.66867691)
0.00013301 TDB
period 1485.351843240883
4.07
1.2451e-05
3.409e-08
d
yr
n .2423668180964569 2.0316e-09 deg/d
Q 2.896838307202344 1.6188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      457  
   data-arc span      8719 days (23.87 yr)  
   first obs. used      1996-10-08  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62732  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 12:49:35  

Additional Information
 Earth MOID = 1.20675 au 
 Jupiter MOID = 2.14205 au 
 T_jup = 3.389 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457036.5 (2015-Jan-14.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1362394083970037 3.8725e-08  
q 2.200683267603315 9.531e-08 au
tp 2457327.944795066238
(2015-Nov-01.44479507)
0.00013005 TDB
node 18.92731030005148 2.376e-05 deg
peri 220.9841018831373 4.0049e-05 deg
i 13.75029627346197 6.827e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      457  
   data-arc span      8719 days (23.87 yr)  
   first obs. used      1996-10-08  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62732  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 12:49:35  

Additional Information
 Jupiter MOID = 2.14205 au 
 T_jup = 3.389 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.499612923396816E-15 -3.662925639405935E-15 -1.041170602827756E-12 -1.813863981392705E-14 -2.344081195586342E-13 4.374347916110071E-15
q -3.662925639405935E-15 9.083943003844901E-15 3.059517930900244E-12 4.917242965919938E-14 6.908792738450731E-13 -1.290767848597995E-14
tp -1.041170602827756E-12 3.059517930900244E-12 1.691400859387459E-8 9.078536600508184E-11 4.230615328356183E-9 -4.332386071895695E-11
node -1.813863981392705E-14 4.917242965919938E-14 9.078536600508184E-11 5.645428210984486E-10 -5.250042455955169E-10 -9.168569670001246E-11
peri -2.344081195586342E-13 6.908792738450731E-13 4.230615328356183E-9 -5.250042455955169E-10 1.60391498698896E-9 7.808932791972692E-11
i 4.374347916110071E-15 -1.290767848597995E-14 -4.332386071895695E-11 -9.168569670001246E-11 7.808932791972692E-11 4.660760550726429E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO433009  

157872 (1999 GJ6)          Discovered 1999-Apr-14 by Sarounova, L. at Ondrejov
Reference: 20070601/Numbers.arcLast Updated: 2007-06-06

Alternate Designations
 1999 GJ6 = 1996 TU41 = 2003 FW72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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