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143404 (2003 BD44)
Classification: Apollo [NEO, PHA]          SPK-ID: 2143404
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 217 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6062843185957821 1.2099e-08  
a 1.968122774173422 3.5031e-09 au
q .7748807991208486 2.3932e-08 au
i 2.662573071536381 3.9141e-06 deg
node 181.2768139943217 3.4299e-05 deg
peri 89.28633238278303 3.4363e-05 deg
M 172.6507054877179 1.4124e-06 deg
tp 2458912.837335980061
(2020-Mar-04.33733598)
2.7433e-06 TDB
period 1008.501868297114
2.76
2.6926e-06
7.372e-09
d
yr
n .3569651294824779 9.5306e-10 deg/d
Q 3.161364749225997 5.627e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1370  
   # delay obs. used      3  
   # Doppler obs. used      0  
   data-arc span      14589 days (39.94 yr)  
   first obs. used      1981-02-28  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39147  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:48:00  

Additional Information
 Earth MOID = .0179323 au 
 Jupiter MOID = 1.97746 au 
 T_jup = 3.621 
[ 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 16.89   n/a MPCxxxxx  
rotation period rot_per 78.64 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2017) Minor Planet Bull. 44, 223-237.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 335-344.]
[Polakis, T.; Warner, B.D.; Skiff, B.A. (2018) Minor Planet Bull. 45, 3-4.]
[Sada, P.V.; Loera-Gonzalez, P.; Olguin, L.; Saucedo-Morales. J.C.; et al. (2018) Minor Planet Bull. 45, 122-124.]

143404 (2003 BD44)          Discovered 2003-Jan-30 by LONEOS at Anderson Mesa
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

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