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39451 (3992 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2039451
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1811928837176129 4.3106e-08  
a 2.452255117848685 8.0416e-09 au
q 2.007923941434407 1.0634e-07 au
i 3.34172681474542 3.4447e-06 deg
node 65.67877813232548 7.9991e-05 deg
peri 271.0584534246455 8.0596e-05 deg
M 118.4834044111534 9.2773e-06 deg
tp 2458738.861602426000
(2019-Sep-12.36160243)
3.5954e-05 TDB
period 1402.642200843074
3.84
6.8995e-06
1.889e-08
d
yr
n .2566584691260665 1.2625e-09 deg/d
Q 2.896586294262963 9.4987e-09 au
  Orbit Determination Parameters
   # obs. used (total)      904  
   data-arc span      15800 days (43.26 yr)  
   first obs. used      1977-10-16  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52932  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:14:43  

Additional Information
 Earth MOID = 1.00004 au 
 Jupiter MOID = 2.48476 au 
 T_jup = 3.470 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457423.5 (2016-Feb-05.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1824907057330248 4.3071e-08  
q 2.004059299505348 1.0637e-07 au
tp 2457337.156835423112
(2015-Nov-10.65683542)
3.5841e-05 TDB
node 65.68654974084374 8.0007e-05 deg
peri 271.1376173454271 8.06e-05 deg
i 3.342739621571856 3.4442e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      904  
   data-arc span      15800 days (43.26 yr)  
   first obs. used      1977-10-16  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52932  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:14:43  

Additional Information
 Jupiter MOID = 2.48476 au 
 T_jup = 3.470 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.855074144761843E-15 -4.572739784121021E-15 -1.902089001849976E-13 1.178694986776555E-14 -4.819818268046573E-14 -1.871292842015953E-15
q -4.572739784121021E-15 1.131491543826845E-14 4.327405111848425E-13 -2.809054760875636E-14 1.067011543037358E-13 4.713606732673617E-15
tp -1.902089001849976E-13 4.327405111848425E-13 1.284581435127351E-9 -7.344433452623155E-12 3.731063864639861E-10 6.62326074482941E-13
node 1.178694986776555E-14 -2.809054760875636E-14 -7.344433452623155E-12 6.401167539308922E-9 -6.392394544894951E-9 9.917294596342626E-12
peri -4.819818268046573E-14 1.067011543037358E-13 3.731063864639861E-10 -6.392394544894951E-9 6.496424421298325E-9 -9.744869568720577E-12
i -1.871292842015953E-15 4.713606732673617E-15 6.62326074482941E-13 9.917294596342626E-12 -9.744869568720577E-12 1.18626042495249E-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 15.6   n/a MPO502430  
diameter diameter 4.480 km 0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39451 (3992 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
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
2068-Jan-05 08:41 < 00:01 Juno 0.0481638693154938 0.048162438792696 0.0481653002662736 6.74150494074648 6.74150490327785 2476385.861745487 0.524369114104866 346.04866221095 53.0513944624628 81.9887047706675 134473.301148457 T 25 CATAB v2.0f-lin.ifort 2021-Feb-24 04:14:44 2021-Feb-24 04:14
2125-Mar-18 09:24 00:09 Europ 0.0374741200797101 0.0374680574284137 0.0374801841023363 3.14061262222903 3.1406125319211 2497276.891460080 8.63876600190836 468.896942260818 28.5954998801308 -50.0296412593206 150276.392796952 T 25 CATAB v2.0f-lin.ifort 2021-Feb-24 04:14:44 2021-Feb-24 04:14
2154-Jan-28 21:04 00:03 Hebe 0.0385216876911951 0.0385117139514155 0.0385316769459769 6.16171026258083 6.1617102363899 2507820.377452579 2.66025328497464 1318.7504422976 31.7807858822633 -67.8715742222257 167932.921661483 T 25 CATAB v2.0f-lin.ifort 2021-Feb-24 04:14:44 2021-Feb-24 04:14

Alternate Designations
 3992 T-3 = 2000 SZ63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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