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91241 (1999 CY28)
Classification: Main-belt Asteroid          SPK-ID: 2091241
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1464519055869109 3.8576e-08  
a 2.359941940512376 1.2135e-08 au
q 2.014323946249867 9.2163e-08 au
i 2.485783634866058 4.3995e-06 deg
node 147.7087814385467 0.0001247 deg
peri 21.90265088154145 0.00012626 deg
M 295.1317063926998 2.1222e-05 deg
tp 2459239.105460157743
(2021-Jan-24.60546016)
7.9051e-05 TDB
period 1324.190307468185
3.63
1.0214e-05
2.796e-08
d
yr
n .2718642463773278 2.097e-09 deg/d
Q 2.705559934774886 1.3913e-08 au
  Orbit Determination Parameters
   # obs. used (total)      433  
   data-arc span      7686 days (21.04 yr)  
   first obs. used      1999-01-10  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59719  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:26:11  

Additional Information
 Earth MOID = 1.02079 au 
 Jupiter MOID = 2.26143 au 
 T_jup = 3.536 
[ show covariance matrix ]

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 16.4   n/a MPO453351  

91241 (1999 CY28)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 CY28 = 2001 UC181 = 2001 UY204 = 2001 WG94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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