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13806 Darmstrong (1998 XM6)
Classification: Main-belt Asteroid          SPK-ID: 2013806
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08071673111520293 3.3666e-08  
a 2.935272100283667 1.3156e-08 au
q 2.698346531415113 9.9075e-08 au
i 3.065668307562519 3.7936e-06 deg
node 113.7359383963708 6.517e-05 deg
peri 184.4649260788058 6.8668e-05 deg
M 253.2787553289282 2.2414e-05 deg
tp 2459745.026923429022
(2022-Jun-14.52692343)
0.00011511 TDB
period 1836.838513630871
5.03
1.2349e-05
3.381e-08
d
yr
n .1959889219049471 1.3176e-09 deg/d
Q 3.17219766915222 1.4218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1861  
   data-arc span      15447 days (42.29 yr)  
   first obs. used      1978-11-29  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51169  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:08:10  

Additional Information
 Earth MOID = 1.68057 au 
 Jupiter MOID = 1.97977 au 
 T_jup = 3.268 
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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 14.26   n/a E2021B10  
rotation period rot_per 20. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Polishook, D.; Ofek, E.O.; Waszczak, A.; Kulkarni, S.R.; et al. (2012). Mon. Not. Royal Ast. Soc. 421, 2094-2108.]

13806 Darmstrong           Discovered 1998 Dec. 8 by Spacewatch at Kitt Peak.
High-school geography teacher Henry Armstrong (b. 1962) is a Canadian amateur astronomer with keen observing skills.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

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Alternate Designations
 1998 XM6 = 1978 WS13 = 1996 LE5 
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