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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03616547036088334 4.0957e-08  
a 3.110469941404072 2.4896e-08 au
q 2.997978332929804 1.2454e-07 au
i 9.523450696296431 4.6426e-06 deg
node 188.3648914237457 2.9184e-05 deg
peri 328.8388095793425 7.7267e-05 deg
M 125.0869904352859 7.0211e-05 deg
tp 2458304.279057320662
(2018-Jul-04.77905732)
0.0003932 TDB
period 2003.721877809754
5.49
2.4056e-05
6.586e-08
d
yr
n .1796656531960972 2.157e-09 deg/d
Q 3.22296154987834 2.5796e-08 au
  Orbit Determination Parameters
   # obs. used (total)      716  
   data-arc span      7214 days (19.75 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55408  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:33:37  

Additional Information
 Earth MOID = 2.00893 au 
 Jupiter MOID = 1.75203 au 
 T_jup = 3.197 
[ 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 14.7   n/a MPO436412  
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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