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22251 (1978 RT6)
Classification: Main-belt Asteroid          SPK-ID: 2022251
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1702270213344964 3.6879e-08  
a 2.279179718281415 7.5494e-09 au
q 1.891201743752374 8.4287e-08 au
i 5.932660209373535 4.4071e-06 deg
node 165.421626284248 4.0961e-05 deg
peri 111.1710891220519 4.3127e-05 deg
M 150.4974170860484 1.5248e-05 deg
tp 2458675.096659241201
(2019-Jul-10.59665924)
5.1926e-05 TDB
period 1256.800324785788
3.44
6.2444e-06
1.71e-08
d
yr
n .2864416828197107 1.4232e-09 deg/d
Q 2.667157692810457 8.8346e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1119  
   data-arc span      15479 days (42.38 yr)  
   first obs. used      1978-09-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53524  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:02:50  

Additional Information
 Earth MOID = .88296 au 
 Jupiter MOID = 2.46914 au 
 T_jup = 3.580 
[ 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 15.5   n/a MPO474058  

22251 (1978 RT6)          Discovered 1978-Sep-02 by Lagerkvist, C.-I. at La Silla
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1978 RT6 = 1998 FB64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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