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385474 (2003 UC281)
Classification: Main-belt Asteroid          SPK-ID: 2385474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1886123880942414 8.8972e-08  
a 2.811024016148274 3.2183e-08 au
q 2.280830063472282 2.5472e-07 au
i 14.21160651336491 1.4968e-05 deg
node 50.41508719266829 3.6442e-05 deg
peri 42.87860655201444 7.0395e-05 deg
M 242.8023362390628 5.474e-05 deg
tp 2459956.917533828868
(2023-Jan-12.41753383)
0.00026654 TDB
period 1721.453360963985
4.71
2.9563e-05
8.094e-08
d
yr
n .2091256191793694 3.5913e-09 deg/d
Q 3.341217968824266 3.8253e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      5690 days (15.58 yr)  
   first obs. used      2003-10-28  
   last obs. used      2019-05-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .72116  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:05:31  

Additional Information
 Earth MOID = 1.31751 au 
 Jupiter MOID = 2.02788 au 
 T_jup = 3.251 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457450.5 (2016-Mar-03.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1922320909650313 8.9547e-08  
q 2.265424714928927 2.5672e-07 au
tp 2458236.558835733548
(2018-Apr-28.05883573)
0.00024174 TDB
node 50.64601279422466 3.6414e-05 deg
peri 42.46175851376212 6.8686e-05 deg
i 14.24841847608142 1.498e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      5690 days (15.58 yr)  
   first obs. used      2003-10-28  
   last obs. used      2019-05-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .72116  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:05:31  

Additional Information
 Jupiter MOID = 2.02788 au 
 T_jup = 3.251 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.018643274622901E-15 -2.287789197959423E-14 -1.383472392626272E-11 -6.399716563699236E-14 -3.41210107925174E-12 5.379738231072107E-15
q -2.287789197959423E-14 6.590309241863526E-14 4.15070987545564E-11 1.87013048501479E-13 1.014256976722948E-11 -1.447937489253983E-14
tp -1.383472392626272E-11 4.15070987545564E-11 5.843880476603096E-8 2.485140430633248E-10 1.41251384716779E-8 -7.021360032357391E-11
node -6.399716563699236E-14 1.87013048501479E-13 2.485140430633248E-10 1.325997224114087E-9 -1.22247033596356E-9 -2.640128083312739E-10
peri -3.41210107925174E-12 1.014256976722948E-11 1.41251384716779E-8 -1.22247033596356E-9 4.717826737359451E-9 2.388399273424392E-10
i 5.379738231072107E-15 -1.447937489253983E-14 -7.021360032357391E-11 -2.640128083312739E-10 2.388399273424392E-10 2.244071874675274E-10

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 16.7   n/a MPO476807  

385474 (2003 UC281)          Discovered 2003-Oct-28 by LINEAR at Socorro
Reference: Last Updated: 2014-02-19

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