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91492 (1999 RY132)
Classification: Main-belt Asteroid          SPK-ID: 2091492
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1665965352850303 4.6896e-08  
a 2.734636358716877 1.6781e-08 au
q 2.279055416090174 1.288e-07 au
i 9.178213410815891 5.7543e-06 deg
node 196.0443350755745 2.3635e-05 deg
peri 214.3438198535651 2.7494e-05 deg
M 240.3688151320066 1.7344e-05 deg
tp 2459945.395544885436
(2022-Dec-31.89554489)
8.277e-05 TDB
period 1651.763262035737
4.52
1.5204e-05
4.163e-08
d
yr
n .2179489084630163 2.0061e-09 deg/d
Q 3.19021730134358 1.9576e-08 au
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      7973 days (21.83 yr)  
   first obs. used      1999-09-08  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52701  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:17:38  

Additional Information
 Earth MOID = 1.29466 au 
 Jupiter MOID = 2.23004 au 
 T_jup = 3.314 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.68   n/a E2021B10  
diameter diameter 3.421 km 0.825 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.370 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.]
geometric albedo albedo 0.239   0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91492 (1999 RY132)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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