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91517 (1999 RO175)
Classification: Main-belt Asteroid          SPK-ID: 2091517
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1056809392394046 4.3649e-08  
a 2.716576543863559 1.5069e-08 au
q 2.429486183192322 1.201e-07 au
i 5.461030685435247 5.4949e-06 deg
node 342.1494087505841 4.4585e-05 deg
peri 64.99324577788653 5.0729e-05 deg
M 178.7218367824696 2.487e-05 deg
tp 2458188.592664924669
(2018-Mar-11.09266492)
0.00011064 TDB
period 1635.427689694542
4.48
1.3608e-05
3.726e-08
d
yr
n .220125904843423 1.8315e-09 deg/d
Q 3.003666904534795 1.6661e-08 au
  Orbit Determination Parameters
   # obs. used (total)      757  
   data-arc span      7584 days (20.76 yr)  
   first obs. used      1999-08-22  
   last obs. used      2020-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55371  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:17:39  

Additional Information
 Earth MOID = 1.4449 au 
 Jupiter MOID = 2.35243 au 
 T_jup = 3.346 
[ 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 15.2   n/a MPO468901  

91517 (1999 RO175)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 RO175 = 2001 BR7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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