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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 ]

[ show orbit diagram ]
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1903-Feb-28 06:12 00:03 Jupiter 1.96167712527783 1.96167660354029 1.96167764701559 3.19330026557005 3.05509358896118 2416173.758045537 2.76315134917591 118.428894263144 16.8972499132092 -85.6526619196251 2625625.81509668 T 30 CATAB v2.0f-lin.ifort 2021-Apr-13 05:11:12 2021-Apr-13 05:11
1998-Oct-10 22:54 < 00:01 Jupiter 1.96187369334647 1.96187313105162 1.96187425564133 3.34316675161926 3.21142969795449 2451097.454059153 0.464770341110145 44.7482926139168 19.8062095819907 87.7202799208747 2372741.47302882 T 30 CATAB v2.0f-lin.ifort 2021-Apr-13 05:11:12 2021-Apr-13 05:11
2033-Jun-19 20:06 < 00:01 Jupiter 1.97163391754373 1.97163347061659 1.97163436447077 3.18638717460822 3.04858237922336 2463768.337196586 0.549047577781422 44.3269879078265 14.7484016473543 87.9632275708063 2869128.839311 T 30 CATAB v2.0f-lin.ifort 2021-Apr-13 05:11:12 2021-Apr-13 05:11
2129-Jan-31 21:26 00:03 Jupiter 1.94895096565856 1.94895042286523 1.9489515084519 3.25796196472318 3.12171547735286 2498692.393012975 2.83691302112965 143.279900372593 18.3741620322128 89.9946910151984 2430498.02291388 T 30 CATAB v2.0f-lin.ifort 2021-Apr-13 05:11:12 2021-Apr-13 05:11
2163-Oct-11 01:53 00:04 Jupiter 1.98993241449447 1.98993169598144 1.98993313300897 3.21172407272797 3.07633933451505 2511362.578275846 3.6980473360747 124.289809148805 17.1784838843342 -77.8578109076003 3082277.2860942 T 30 CATAB v2.0f-lin.ifort 2021-Apr-13 05:11:12 2021-Apr-13 05:11

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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