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180404 (2004 BT27)
Classification: Main-belt Asteroid          SPK-ID: 2180404
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1268484696342972 4.7015e-08  
a 2.38468657181465 1.1081e-08 au
q 2.082192729622503 1.1015e-07 au
i 2.107875900391971 3.7236e-06 deg
node 58.66918808666159 0.000138 deg
peri 114.2238454092784 0.00013876 deg
M 177.1739312939446 1.5766e-05 deg
tp 2458538.523294496454
(2019-Feb-24.02329450)
5.7375e-05 TDB
period 1345.071547720529
3.68
9.3755e-06
2.567e-08
d
yr
n .2676437551668432 1.8655e-09 deg/d
Q 2.687180414006797 1.2487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      9116 days (24.96 yr)  
   first obs. used      1995-12-19  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51588  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:26:22  

Additional Information
 Earth MOID = 1.08795 au 
 Jupiter MOID = 2.27527 au 
 T_jup = 3.524 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457473.5 (2016-Mar-26.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1258981033175924 4.6964e-08  
q 2.084687929944949 1.0991e-07 au
tp 2457191.167522836703
(2015-Jun-17.66752284)
5.5744e-05 TDB
node 58.72590341769434 0.00013778 deg
peri 113.8686492178771 0.00013855 deg
i 2.109535071509297 3.7259e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      9116 days (24.96 yr)  
   first obs. used      1995-12-19  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51588  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:26:22  

Additional Information
 Jupiter MOID = 2.27527 au 
 T_jup = 3.524 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.205585681363243E-15 -5.143237412514759E-15 -3.248480577105401E-13 -2.072710600927577E-15 -7.46519945914658E-14 -1.297298154385732E-16
q -5.143237412514759E-15 1.208085812661946E-14 8.535974242194314E-13 6.105527783064303E-15 2.004226549892396E-13 3.614391149202473E-16
tp -3.248480577105401E-13 8.535974242194314E-13 3.10734648938767E-9 -3.019929186291959E-12 8.457777616125935E-10 2.103890417987289E-13
node -2.072710600927577E-15 6.105527783064303E-15 -3.019929186291959E-12 1.898352563373685E-8 -1.897129237534901E-8 -6.29217743342622E-11
peri -7.46519945914658E-14 2.004226549892396E-13 8.457777616125935E-10 -1.897129237534901E-8 1.919703232601227E-8 6.294083790042023E-11
i -1.297298154385732E-16 3.614391149202473E-16 2.103890417987289E-13 -6.29217743342622E-11 6.294083790042023E-11 1.388242522905424E-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 16.79   n/a E2021B55  

180404 (2004 BT27)          Discovered 2004-Jan-18 by NEAT at Palomar
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2004 BT27 = 2002 TQ359 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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