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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 ]

[ hide orbit diagram ]

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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0553771958137908 3.9117e-08  
a 2.92913847561757 1.6323e-08 au
q 2.766931000687587 1.1727e-07 au
i 2.294432024522246 4.9611e-06 deg
node 37.22681307689794 0.00012102 deg
peri 80.71022427124511 0.00013711 deg
M 33.42862283863091 6.0523e-05 deg
tp 2459030.470504311636
(2020-Jun-29.97050431)
0.00030789 TDB
period 1831.084060605527
5.01
1.5306e-05
4.191e-08
d
yr
n .1966048461374025 1.6434e-09 deg/d
Q 3.091345950547553 1.7227e-08 au
  Orbit Determination Parameters
   # obs. used (total)      925  
   data-arc span      18260 days (49.99 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53457  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:48:51  

Additional Information
 Earth MOID = 1.78418 au 
 Jupiter MOID = 1.94515 au 
 T_jup = 3.273 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457109.5 (2015-Mar-28.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05426223030290525 4.0287e-08  
q 2.769677884992428 1.2088e-07 au
tp 2457212.463117218378
(2015-Jul-08.96311722)
0.00031072 TDB
node 37.27898635845507 0.00012109 deg
peri 83.30452060971575 0.00013732 deg
i 2.29482267349595 4.9575e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      925  
   data-arc span      18260 days (49.99 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53457  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:48:51  

Additional Information
 Jupiter MOID = 1.94515 au 
 T_jup = 3.273 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.623021581330777E-15 -4.830741129141378E-15 3.976751917388961E-12 -4.993143253836156E-15 8.165938906944433E-13 -5.030919005654097E-16
q -4.830741129141378E-15 1.461246940432054E-14 -1.226991348828984E-11 1.454780014409285E-14 -2.523035878502826E-12 1.648790055925957E-15
tp 3.976751917388961E-12 -1.226991348828984E-11 9.654813623072643E-8 -2.769911850457413E-10 2.015479044676905E-8 1.104613978475581E-12
node -4.993143253836156E-15 1.454780014409285E-14 -2.769911850457413E-10 1.466226965796292E-8 -1.47071184298022E-8 -1.772392782299493E-10
peri 8.165938906944433E-13 -2.523035878502826E-12 2.015479044676905E-8 -1.47071184298022E-8 1.885599076842235E-8 1.773287211936627E-10
i -5.030919005654097E-16 1.648790055925957E-15 1.104613978475581E-12 -1.772392782299493E-10 1.773287211936627E-10 2.457656804477348E-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 14.78   n/a MPCxxxxx  

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 1.96167712739246 1.96167660817814 1.9616776466069 3.193300272979 3.05509359685765 2416173.758032314 2.74134564447179 117.41329857033 16.8509365809824 -85.7098279037102 2630542.54330467 T 31 CATAB v2.0g-lin.ifort 2021-May-04 03:48:56 2021-May-04 03:48
1998-Oct-10 22:54 < 00:01 Jupiter 1.96187369397476 1.96187313187896 1.96187425607055 3.34316675768442 3.2114297043115 2451097.454058070 0.462449409766428 44.3882910678273 19.7959814190635 87.6225729577117 2374333.78800701 T 31 CATAB v2.0g-lin.ifort 2021-May-04 03:48:56 2021-May-04 03:48
2033-Jun-19 20:06 < 00:01 Jupiter 1.97163391832272 1.97163347204033 1.97163436460499 3.18638718760849 3.04858239286696 2463768.337200687 0.544796011226867 44.0491365125003 14.7386696023081 88.0130364364641 2875911.75254237 T 31 CATAB v2.0g-lin.ifort 2021-May-04 03:48:56 2021-May-04 03:48
2129-Jan-31 21:26 00:03 Jupiter 1.94895096712817 1.94895042520472 1.94895150905162 3.25796197950015 3.12171549287974 2498692.393021743 2.81291603013069 142.184629346952 18.3628074314977 -89.9730467968449 2433079.13213572 T 31 CATAB v2.0g-lin.ifort 2021-May-04 03:48:56 2021-May-04 03:48
2163-Oct-11 01:53 00:04 Jupiter 1.98993241334539 1.98993169624177 1.9899331304506 3.2117240803393 3.07633934238145 2511362.578290300 3.66644287546792 123.33629976728 17.1250900037994 -77.8061580878181 3088841.79727462 T 31 CATAB v2.0g-lin.ifort 2021-May-04 03:48:56 2021-May-04 03:48

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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