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26003 Amundson (2001 FD104)
Classification: Main-belt Asteroid          SPK-ID: 2026003
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05537719647457231 3.9368e-08  
a 2.929138475317875 1.6466e-08 au
q 2.766930998468968 1.1824e-07 au
i 2.294432144622322 4.9737e-06 deg
node 37.22681640662076 0.00012142 deg
peri 80.71022106543931 0.00013746 deg
M 33.42862283360426 6.0523e-05 deg
tp 2459030.470504363298
(2020-Jun-29.97050436)
0.00030789 TDB
period 1831.084060324506
5.01
1.544e-05
4.227e-08
d
yr
n .196604846167576 1.6578e-09 deg/d
Q 3.091345952166782 1.7378e-08 au
  Orbit Determination Parameters
   # obs. used (total)      910  
   data-arc span      18254 days (49.98 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53756  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:11:08  

Additional Information
 Earth MOID = 1.78418 au 
 Jupiter MOID = 1.94515 au 
 T_jup = 3.273 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457089.5 (2015-Mar-08.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05422160424258822 4.055e-08  
q 2.769675615289634 1.2185e-07 au
tp 2457212.515945451619
(2015-Jul-09.01594545)
0.00031091 TDB
node 37.2797590437856 0.00012149 deg
peri 83.31485037183532 0.00013769 deg
i 2.294841559508269 4.9702e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      910  
   data-arc span      18254 days (49.98 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53756  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:11:08  

Additional Information
 Jupiter MOID = 1.94515 au 
 T_jup = 3.273 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.64431177254734E-15 -4.901321799222502E-15 3.984874859583855E-12 -4.551404844243024E-15 8.195018384381697E-13 -5.038454736880141E-16
q -4.901321799222502E-15 1.484713610548959E-14 -1.228800467073076E-11 1.30226977649116E-14 -2.530953077370538E-12 1.662114483485483E-15
tp 3.984874859583855E-12 -1.228800467073076E-11 9.666673043109252E-8 -2.752704867673707E-10 2.017828234524356E-8 1.162517742757238E-12
node -4.551404844243024E-15 1.30226977649116E-14 -2.752704867673707E-10 1.475930426268832E-8 -1.480369558346622E-8 -1.737315992097665E-10
peri 8.195018384381697E-13 -2.530953077370538E-12 2.017828234524356E-8 -1.480369558346622E-8 1.895760189494432E-8 1.738349799089848E-10
i -5.038454736880141E-16 1.662114483485483E-15 1.162517742757238E-12 -1.737315992097665E-10 1.738349799089848E-10 2.470265560290645E-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 14.76   n/a E2021B10  

26003 Amundson           Discovered 2001 Mar. 18 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Lauren Amundson (b. 1984) is the librarian/archivist for Lowell Observatory. As such, she is the curator for the Observatory's historical collection which includes extensive material from Percival Lowell's personal research and travels.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-10-26Last Updated: 2019-04-09

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Alternate Designations
 2001 FD104 = 1993 QM9 = 2000 AF155 = 4210 T-1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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