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18901 (2000 MR5)
Classification: Main-belt Asteroid          SPK-ID: 2018901
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1136772057096671 2.3403e-08  
a 3.091064019055281 1.6165e-08 au
q 2.739680498699383 7.6879e-08 au
i 21.77851790819207 5.3387e-07 deg
node 239.3380061958738 1.1295e-06 deg
peri 158.2306432788178 6.5189e-06 deg
M 232.0539606273213 8.8416e-06 deg
tp 2459905.980107644203
(2022-Nov-22.48010764)
5.1132e-05 TDB
period 1984.999613877425
5.43
1.5571e-05
4.263e-08
d
yr
n .1813602367895626 1.4227e-09 deg/d
Q 3.442447539411179 1.8003e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1993  
   data-arc span      9225 days (25.26 yr)  
   first obs. used      1995-11-18  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44524  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:41:53  

Additional Information
 Earth MOID = 1.7575 au 
 Jupiter MOID = 1.96366 au 
 T_jup = 3.106 
[ show covariance matrix ]

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 12.36   n/a E2021B10  
diameter diameter 13.491 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 41.6808 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.154   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18901 (2000 MR5)          Discovered 2000-Jun-24 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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