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JPL Small-Body Database Browser
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91444 (1999 RS17)
Classification: Main-belt Asteroid          SPK-ID: 2091444
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2781329662197461 8.0184e-08  
a 2.937056064924432 1.181e-08 au
q 2.120163949633305 2.3648e-07 au
i 1.35061875009196 6.1088e-06 deg
node 293.0473330289936 0.00026362 deg
peri 48.25038501867353 0.00026376 deg
M 49.82087671455135 7.0804e-06 deg
tp 2458746.065706281115
(2019-Sep-19.56570628)
3.5665e-05 TDB
period 1838.513325720859
5.03
1.1089e-05
3.036e-08
d
yr
n .1958103838376305 1.181e-09 deg/d
Q 3.75394818021556 1.5094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      7376 days (20.19 yr)  
   first obs. used      1999-08-22  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57148  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:55:22  

Additional Information
 Earth MOID = 1.1122 au 
 Jupiter MOID = 1.66522 au 
 T_jup = 3.215 
[ 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 16.0   n/a MPO493511  

91444 (1999 RS17)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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