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277300 (2005 SK139)
Classification: Main-belt Asteroid          SPK-ID: 2277300
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201769977183491 3.7134e-08  
a 2.438821715475765 1.1563e-08 au
q 2.145731443739574 9.2102e-08 au
i 2.411383369332363 4.3599e-06 deg
node 48.11736229405295 0.00010732 deg
peri 21.29525545656382 0.0001093 deg
M 309.9733156712859 2.2405e-05 deg
tp 2459393.815966810813
(2021-Jun-28.31596681)
8.7153e-05 TDB
period 1391.132532282328
3.81
9.8936e-06
2.709e-08
d
yr
n .2587819576107352 1.8404e-09 deg/d
Q 2.731911987211956 1.2953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      260  
   data-arc span      5504 days (15.07 yr)  
   first obs. used      2005-09-25  
   last obs. used      2020-10-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59506  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 04:00:22  

Additional Information
 Earth MOID = 1.15957 au 
 Jupiter MOID = 2.51647 au 
 T_jup = 3.492 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457691.5 (2016-Oct-30.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1214007724119522 3.7327e-08  
q 2.143144091558424 9.2793e-08 au
tp 2457998.547122666176
(2017-Sep-02.04712267)
8.1977e-05 TDB
node 48.20174064084163 0.00010703 deg
peri 20.3901229813827 0.00010896 deg
i 2.415194584589359 4.3653e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      260  
   data-arc span      5504 days (15.07 yr)  
   first obs. used      2005-09-25  
   last obs. used      2020-10-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59506  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 04:00:22  

Additional Information
 Jupiter MOID = 2.51647 au 
 T_jup = 3.492 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.393315961615734E-15 -3.442929226961573E-15 -4.559738632730522E-13 1.116484218621757E-14 -8.67011702301294E-14 -4.792740036847476E-16
q -3.442929226961573E-15 8.610466285610087E-15 1.400622558624931E-12 -2.633351553965344E-14 2.762866955015385E-13 1.410514301242886E-15
tp -4.559738632730522E-13 1.400622558624931E-12 6.720297979597377E-9 2.132099857107672E-11 1.69524598843233E-9 3.180762388278986E-12
node 1.116484218621757E-14 -2.633351553965344E-14 2.132099857107672E-11 1.145569278506416E-8 -1.143944298136854E-8 -8.873337260661835E-11
peri -8.67011702301294E-14 2.762866955015385E-13 1.69524598843233E-9 -1.143944298136854E-8 1.187330932325748E-8 8.945192701217132E-11
i -4.792740036847476E-16 1.410514301242886E-15 3.180762388278986E-12 -8.873337260661835E-11 8.945192701217132E-11 1.905552872820984E-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 17.58   n/a E2021B55  
diameter diameter 1.471 km 0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

277300 (2005 SK139)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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