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227397 (2005 UO377)
Classification: Main-belt Asteroid          SPK-ID: 2227397
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08286801688436593 5.1368e-08  
a 2.372017748803368 1.313e-08 au
q 2.175453341945515 1.1942e-07 au
i 2.422535605698862 6.0139e-06 deg
node 180.4794677940576 0.00010804 deg
peri 15.25968808548243 0.00011293 deg
M 254.2865920272417 3.3803e-05 deg
tp 2459592.334707117470
(2022-Jan-12.83470712)
0.00012585 TDB
period 1334.367108840534
3.65
1.108e-05
3.034e-08
d
yr
n .2697908226416142 2.2401e-09 deg/d
Q 2.568582155661221 1.4218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      9611 days (26.31 yr)  
   first obs. used      1994-10-10  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60408  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:36  

Additional Information
 Earth MOID = 1.17325 au 
 Jupiter MOID = 2.3856 au 
 T_jup = 3.538 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457599.5 (2016-Jul-30.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08240912419597676 5.1342e-08  
q 2.176727833526198 1.1923e-07 au
tp 2458259.817822128407
(2018-May-21.31782213)
0.00012519 TDB
node 180.5124430609806 0.00010796 deg
peri 15.68308241373919 0.00011291 deg
i 2.422909958737537 6.0156e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      9611 days (26.31 yr)  
   first obs. used      1994-10-10  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60408  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:36  

Additional Information
 Jupiter MOID = 2.3856 au 
 T_jup = 3.538 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.635993665380257E-15 -6.091974314905455E-15 -2.883178253818692E-12 4.654032524274029E-15 -7.672867991696763E-13 -1.187501128670128E-16
q -6.091974314905455E-15 1.421578179069219E-14 6.962161717975859E-12 -1.184664253302315E-14 1.834604833234401E-12 5.120591057434129E-16
tp -2.883178253818692E-12 6.962161717975859E-12 1.567162079185652E-8 -4.195201197427293E-11 4.156581401204493E-9 4.334504975459181E-12
node 4.654032524274029E-15 -1.184664253302315E-14 -4.195201197427293E-11 1.165473831908686E-8 -1.165484848223488E-8 -2.420888806297826E-10
peri -7.672867991696763E-13 1.834604833234401E-12 4.156581401204493E-9 -1.165484848223488E-8 1.274959117681852E-8 2.429847780746418E-10
i -1.187501128670128E-16 5.120591057434129E-16 4.334504975459181E-12 -2.420888806297826E-10 2.429847780746418E-10 3.618746630217126E-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 17.34   n/a MPCxxxxx  

227397 (2005 UO377)          Discovered 2005-Oct-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2005 UO377 = 2001 SJ331 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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