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JPL Small-Body Database Browser
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91544 (1999 RM207)
Classification: Main-belt Asteroid          SPK-ID: 2091544
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0268290429721841 3.9945e-08  
a 2.988133699951582 2.5689e-08 au
q 2.907964932508949 1.2181e-07 au
i 8.703255209886136 4.5075e-06 deg
node 248.0373908426741 3.2732e-05 deg
peri 181.0469774667098 0.00010234 deg
M 302.3267688612946 9.7322e-05 deg
tp 2459302.752740838293
(2021-Mar-29.25274084)
0.00051096 TDB
period 1886.680953250088
5.17
2.433e-05
6.661e-08
d
yr
n .1908112759498878 2.4606e-09 deg/d
Q 3.068302467394214 2.6379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      611  
   data-arc span      7296 days (19.98 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-08-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5105  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:58:05  

Additional Information
 Earth MOID = 1.92187 au 
 Jupiter MOID = 2.086 au 
 T_jup = 3.239 
[ 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 14.9   n/a MPO449562  

91544 (1999 RM207)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RM207 = 2002 GG44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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