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243646 (1999 TT147)
Classification: Main-belt Asteroid          SPK-ID: 2243646
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1653764903282614 5.8084e-08  
a 2.425632600552159 1.4224e-08 au
q 2.024489994247029 1.4019e-07 au
i 3.639758001636019 4.2998e-06 deg
node 272.6542505530363 9.6471e-05 deg
peri 57.7179316795519 9.7709e-05 deg
M 201.6984850145821 1.6221e-05 deg
tp 2459607.262215841332
(2022-Jan-27.76221584)
6.4617e-05 TDB
period 1379.862964185787
3.78
1.2138e-05
3.323e-08
d
yr
n .2608954724807941 2.2949e-09 deg/d
Q 2.826775206857288 1.6577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      7428 days (20.34 yr)  
   first obs. used      1999-10-01  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:23:18  

Additional Information
 Earth MOID = 1.01629 au 
 Jupiter MOID = 2.51866 au 
 T_jup = 3.489 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457035.5 (2015-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1662036320624244 5.8348e-08  
q 2.022129820834858 1.4101e-07 au
tp 2456845.099889456534
(2014-Jul-06.59988946)
5.6033e-05 TDB
node 272.8421316957521 9.6449e-05 deg
peri 57.08310505495409 9.766e-05 deg
i 3.640518452539487 4.3023e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      7428 days (20.34 yr)  
   first obs. used      1999-10-01  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:23:18  

Additional Information
 Jupiter MOID = 2.51866 au 
 T_jup = 3.489 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.404539194464438E-15 -8.198802931562721E-15 9.356559567238345E-13 -6.310534313637377E-15 1.421096135246433E-13 -5.514457693798446E-15
q -8.198802931562721E-15 1.988257448653551E-14 -2.176087101667867E-12 1.660543823777616E-14 -3.178469327109685E-13 1.341851665586726E-14
tp 9.356559567238345E-13 -2.176087101667867E-12 3.139712237493182E-9 -5.523370356081937E-12 8.953398554102586E-10 -4.052251665537475E-12
node -6.310534313637377E-15 1.660543823777616E-14 -5.523370356081937E-12 9.302475119992622E-9 -9.284641833684709E-9 4.443275494727525E-11
peri 1.421096135246433E-13 -3.178469327109685E-13 8.953398554102586E-10 -9.284641833684709E-9 9.537550671280011E-9 -4.527965076870046E-11
i -5.514457693798446E-15 1.341851665586726E-14 -4.052251665537475E-12 4.443275494727525E-11 -4.527965076870046E-11 1.850955081938194E-11

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 MPO470598  

243646 (1999 TT147)          Discovered 1999-Oct-07 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2166-Nov-23 05:45 00:04 David 0.0446523400301621 0.0446168195426487 0.0446878984196757 7.1292985562407 7.12929850878461 2512501.739838655 3.68289512466967 2711.01959604791 57.3104272228076 -49.2062313334758 88228.6479390483 T 18 CATAB v2.0f-lin.ifort 2020-Feb-25 09:23:29 2020-Feb-25 09:23

Alternate Designations
 1999 TT147 = 2003 WL93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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