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91277 (1999 EW6)
Classification: Main-belt Asteroid          SPK-ID: 2091277
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1334470613794511 2.574e-08  
a 2.369272536233507 6.9403e-09 au
q 2.053100078666106 6.1063e-08 au
i 1.972621602772732 4.0002e-06 deg
node 185.4566657750404 8.5934e-05 deg
peri 266.833031042961 8.7555e-05 deg
M 106.1207795661017 1.6287e-05 deg
tp 2459003.837987462429
(2020-Jun-03.33798746)
5.9635e-05 TDB
period 1332.051320123168
3.65
5.8529e-06
1.602e-08
d
yr
n .2702598575306487 1.1875e-09 deg/d
Q 2.685444993800907 7.8664e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1222  
   data-arc span      8155 days (22.33 yr)  
   first obs. used      1999-02-10  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52795  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:17:22  

Additional Information
 Earth MOID = 1.07096 au 
 Jupiter MOID = 2.48036 au 
 T_jup = 3.533 
[ 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 15.81   n/a MPO637241  
diameter diameter 4.127 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91277 (1999 EW6)          Discovered 1999-Mar-14 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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