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135805 (2002 RF121)
Classification: Main-belt Asteroid          SPK-ID: 2135805
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024393887803182 3.8837e-08  
a 2.725944234556569 1.292e-08 au
q 2.174105749863705 1.0995e-07 au
i 12.62611966710834 5.1545e-06 deg
node 338.7764224532747 1.796e-05 deg
peri 83.25746487418569 2.5534e-05 deg
M 342.3925532161461 1.3722e-05 deg
tp 2459280.902168334075
(2021-Mar-07.40216833)
6.2529e-05 TDB
period 1643.894254265731
4.50
1.1687e-05
3.2e-08
d
yr
n .2189921882541035 1.5569e-09 deg/d
Q 3.277782719249433 1.5535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1220  
   data-arc span      8151 days (22.32 yr)  
   first obs. used      1998-12-17  
   last obs. used      2021-04-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47293  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:21:55  

Additional Information
 Earth MOID = 1.22823 au 
 Jupiter MOID = 2.22177 au 
 T_jup = 3.292 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457822.5 (2017-Mar-10.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2028318887195629 3.8822e-08  
q 2.173302241169438 1.0968e-07 au
tp 2457630.075022843350
(2016-Aug-29.57502284)
6.5178e-05 TDB
node 339.1512115365085 1.7923e-05 deg
peri 81.86888323406252 2.5401e-05 deg
i 12.62952133479668 5.1646e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1220  
   data-arc span      8151 days (22.32 yr)  
   first obs. used      1998-12-17  
   last obs. used      2021-04-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47293  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:21:55  

Additional Information
 Jupiter MOID = 2.22177 au 
 T_jup = 3.292 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.507152065701489E-15 -4.242691451254552E-15 -3.322307948469943E-13 9.294482578814978E-15 -3.012655642448478E-14 -8.638160072600168E-15
q -4.242691451254552E-15 1.203000629044953E-14 7.136277260810476E-13 -2.319011517205301E-14 2.698645312417315E-14 2.578701385600337E-14
tp -3.322307948469943E-13 7.136277260810476E-13 4.248230667074849E-9 -3.776877888729645E-11 1.181641186908514E-9 8.682224467257816E-12
node 9.294482578814978E-15 -2.319011517205301E-14 -3.776877888729645E-11 3.212239517766908E-10 -3.231622950460219E-10 4.083475170690237E-11
peri -3.012655642448478E-14 2.698645312417315E-14 1.181641186908514E-9 -3.231622950460219E-10 6.451861800156212E-10 -3.824047467247809E-11
i -8.638160072600168E-15 2.578701385600337E-14 8.682224467257816E-12 4.083475170690237E-11 -3.824047467247809E-11 2.667284511900641E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.54   n/a E2021B55  

135805 (2002 RF121)          Discovered 2002-Sep-07 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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