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78438 (2002 RR6)
Classification: Main-belt Asteroid          SPK-ID: 2078438
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .119853689160673 3.3566e-08  
a 2.74529378197505 1.6306e-08 au
q 2.416260194375484 9.7596e-08 au
i 8.519898511365659 4.9713e-06 deg
node 326.9131903050259 2.4973e-05 deg
peri 105.0293601631766 3.3674e-05 deg
M 247.4875173262305 2.3619e-05 deg
tp 2459519.754027253290
(2021-Nov-01.25402725)
0.00011084 TDB
period 1661.428539917594
4.55
1.4802e-05
4.053e-08
d
yr
n .2166810015300784 1.9305e-09 deg/d
Q 3.074327369574616 1.826e-08 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      8029 days (21.98 yr)  
   first obs. used      1998-11-14  
   last obs. used      2020-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53911  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:12:41  

Additional Information
 Earth MOID = 1.44808 au 
 Jupiter MOID = 2.18783 au 
 T_jup = 3.322 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457445.5 (2016-Feb-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1217039154185907 3.3772e-08  
q 2.409771248344362 9.8506e-08 au
tp 2457853.200091751592
(2017-Apr-09.70009175)
0.00010279 TDB
node 327.1498168341252 2.5044e-05 deg
peri 103.7363171995731 3.3355e-05 deg
i 8.508486059452943 4.9669e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      8029 days (21.98 yr)  
   first obs. used      1998-11-14  
   last obs. used      2020-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53911  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:12:41  

Additional Information
 Jupiter MOID = 2.18783 au 
 T_jup = 3.322 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.140517876282555E-15 -3.29580992957886E-15 -4.063137405739867E-13 -2.081142461791786E-17 -6.042142161000495E-14 -7.117224558772668E-16
q -3.29580992957886E-15 9.703520538877046E-15 1.605263479367951E-12 3.597221282966783E-16 2.569200134587231E-13 2.802145583717539E-15
tp -4.063137405739867E-13 1.605263479367951E-12 1.056668910379082E-8 -6.67685701710035E-12 2.274478132319271E-9 1.916192528453899E-12
node -2.081142461791786E-17 3.597221282966783E-16 -6.67685701710035E-12 6.272249023383892E-10 -6.213470554784443E-10 1.743132905062334E-11
peri -6.042142161000495E-14 2.569200134587231E-13 2.274478132319271E-9 -6.213470554784443E-10 1.112536303356754E-9 -1.690223044363978E-11
i -7.117224558772668E-16 2.802145583717539E-15 1.916192528453899E-12 1.743132905062334E-11 -1.690223044363978E-11 2.467015925320212E-11

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 14.9   n/a MPO296677  

78438 (2002 RR6)          Discovered 2002-Sep-01 by NEAT at Haleakala
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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