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101780 (1999 GP8)
Classification: Main-belt Asteroid          SPK-ID: 2101780
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1372435443825535 3.8094e-08  
a 2.240392831223455 7.8825e-09 au
q 1.932913378257084 8.3267e-08 au
i 5.316903254457526 3.5015e-06 deg
node 64.01519560570938 4.0884e-05 deg
peri 93.46217955650627 4.2873e-05 deg
M 205.8490442738521 1.4147e-05 deg
tp 2459724.979368884503
(2022-May-25.47936888)
4.9422e-05 TDB
period 1224.855025445642
3.35
6.4642e-06
1.77e-08
d
yr
n .2939123345385469 1.5511e-09 deg/d
Q 2.547872284189826 8.9643e-09 au
  Orbit Determination Parameters
   # obs. used (total)      917  
   data-arc span      7883 days (21.58 yr)  
   first obs. used      1999-04-10  
   last obs. used      2020-11-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55637  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:33  

Additional Information
 Earth MOID = .950502 au 
 Jupiter MOID = 2.44451 au 
 T_jup = 3.617 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.01   n/a E2021B55  

101780 (1999 GP8)          Discovered 1999-Apr-10 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 GP8 = 2001 XO26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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