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91570 (1999 RN249)
Classification: Main-belt Asteroid          SPK-ID: 2091570
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03845313840056403 4.0282e-08  
a 3.105187671421282 2.3742e-08 au
q 2.985783460132394 1.237e-07 au
i 9.547555627354795 4.5922e-06 deg
node 188.1555531868207 2.7358e-05 deg
peri 330.2594185235532 6.8462e-05 deg
M 194.934013779106 6.1736e-05 deg
tp 2460312.900456658203
(2024-Jan-03.40045666)
0.00034061 TDB
period 1998.619897108724
5.47
2.2922e-05
6.276e-08
d
yr
n .1801242950301802 2.0659e-09 deg/d
Q 3.22459188271017 2.4655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      749  
   data-arc span      8005 days (21.92 yr)  
   first obs. used      1999-09-08  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54393  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:02:32  

Additional Information
 Earth MOID = 1.99714 au 
 Jupiter MOID = 1.74807 au 
 T_jup = 3.198 
[ 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 14.64   n/a MPO637244  
diameter diameter 4.068 km 1.217 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.117   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91570 (1999 RN249)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 RN249 = 1999 TA129 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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