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187990 (2001 RT123)
Classification: Main-belt Asteroid          SPK-ID: 2187990
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07435080487595837 6.1933e-08  
a 2.52277087952453 1.9006e-08 au
q 2.335200834114252 1.5562e-07 au
i 8.410595995807233 6.3748e-06 deg
node 3.195894422775848 4.0083e-05 deg
peri 195.5932158066852 5.64e-05 deg
M 82.76630563788692 3.8192e-05 deg
tp 2458864.014611331090
(2020-Jan-15.51461133)
0.00015649 TDB
period 1463.57553339142
4.01
1.654e-05
4.528e-08
d
yr
n .2459729558103519 2.7797e-09 deg/d
Q 2.710340924934809 2.042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      387  
   data-arc span      7873 days (21.56 yr)  
   first obs. used      1998-12-17  
   last obs. used      2020-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62411  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:38  

Additional Information
 Earth MOID = 1.33403 au 
 Jupiter MOID = 2.25085 au 
 T_jup = 3.436 
[ 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 15.76   n/a E2021B55  

187990 (2001 RT123)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

Alternate Designations
 2001 RT123 = 2003 AL76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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