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14409 (1991 RM1)
Classification: Main-belt Asteroid          SPK-ID: 2014409
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 .2143731350234646 3.0748e-08  
a 3.198745099340362 2.1472e-08 au
q 2.513020084253825 9.3895e-08 au
i 27.86898851070355 1.136e-06 deg
node 36.53838041193816 1.8797e-06 deg
peri 257.9869699152308 3.9189e-06 deg
M 85.50781327002419 8.1445e-06 deg
tp 2458704.169256888887
(2019-Aug-08.66925689)
4.3354e-05 TDB
period 2089.622698638683
5.72
2.104e-05
5.76e-08
d
yr
n .1722799049964989 1.7347e-09 deg/d
Q 3.884470114426899 2.6075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2858  
   data-arc span      24896 days (68.16 yr)  
   first obs. used      1953-01-10  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .385  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:28:17  

Additional Information
 Earth MOID = 1.65508 au 
 Jupiter MOID = 1.71557 au 
 T_jup = 2.981 
[ 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 12.21   n/a E2021B10  
diameter diameter 19.785 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.6798 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.086   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14409 (1991 RM1)          Discovered 1991-Sep-05 by McNaught, R. H. at Siding Spring
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 RM1 = 2000 DK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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