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JPL Small-Body Database Browser
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382278 (2012 TL221)
Classification: Main-belt Asteroid          SPK-ID: 2382278
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04117110518223755 6.3682e-08  
a 3.083602327219964 6.1309e-08 au
q 2.956647011465798 2.0252e-07 au
i 11.7153058225448 1.2625e-05 deg
node 15.95450925510572 3.161e-05 deg
peri 103.1672118456568 0.00018743 deg
M 46.02739787424654 0.00017954 deg
tp 2458747.628493262460
(2019-Sep-21.12849326)
0.00098609 TDB
period 1977.816401314528
5.41
5.8985e-05
1.615e-07
d
yr
n .1820189173073552 5.4284e-09 deg/d
Q 3.21055764297413 6.3833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      5414 days (14.82 yr)  
   first obs. used      2004-02-13  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59959  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:50:37  

Additional Information
 Earth MOID = 1.99847 au 
 Jupiter MOID = 1.82341 au 
 T_jup = 3.194 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456902.5 (2014-Sep-02.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04296146017303572 6.5499e-08  
q 2.953166092693559 2.0913e-07 au
tp 2456779.506441975255
(2014-May-02.00644198)
0.00093637 TDB
node 15.99777175018981 3.1628e-05 deg
peri 104.9876191086115 0.00017839 deg
i 11.71053218686822 1.2619e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      5414 days (14.82 yr)  
   first obs. used      2004-02-13  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59959  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:50:37  

Additional Information
 Jupiter MOID = 1.82341 au 
 T_jup = 3.194 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.290117344620377E-15 -1.315104625581699E-14 2.915911504178956E-11 -2.963751893685332E-14 5.460794443565458E-12 -6.72637605497693E-15
q -1.315104625581699E-14 4.373533618520552E-14 -9.191596459374875E-11 9.665035009612756E-14 -1.718056827652605E-11 2.082466501549772E-14
tp 2.915911504178956E-11 -9.191596459374875E-11 8.767949957000479E-7 -9.318221104945306E-10 1.644227469160074E-7 1.400829782796183E-10
node -2.963751893685332E-14 9.665035009612756E-14 -9.318221104945306E-10 1.000357503194366E-9 -1.152387951806025E-9 -4.493345915943621E-11
peri 5.460794443565458E-12 -1.718056827652605E-11 1.644227469160074E-7 -1.152387951806025E-9 3.182355622203814E-8 7.070766627042884E-11
i -6.72637605497693E-15 2.082466501549772E-14 1.400829782796183E-10 -4.493345915943621E-11 7.070766627042884E-11 1.592416369654412E-10

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 15.8   n/a MPO460499  

382278 (2012 TL221)          Discovered 2004-Feb-13 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-12-19

[ 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
1904-Apr-10 00:50 00:10 Jupiter 1.83752157293196 1.83751996746716 1.83752317840188 4.36710336736969 4.26024334704586 2416580.534504019 9.66461639072983 521.849949947454 70.1759285907519 87.953374427553 1177504.34333592 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 14:50:38 2019-Jul-14 14:50
1964-Feb-28 19:51 00:04 Jupiter 1.89728581451269 1.89728388447721 1.89728774455077 4.43092254132916 4.32899485168753 2438454.326823841 4.46572539259407 215.338618599952 71.7524291128171 -73.1833829216764 1195402.09965763 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 14:50:38 2019-Jul-14 14:50
1974-Feb-03 20:39 00:04 Jupiter 1.95354556187573 1.95354405836609 1.95354706538538 3.72060583394454 3.60218592522342 2442082.360076360 3.78622017665986 115.898901884252 76.0710266213662 -87.461545844085 1358215.27193953 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 14:50:38 2019-Jul-14 14:50
2034-Jan-03 15:58 00:02 Jupiter 1.86034036468621 1.86033915591128 1.86034157346104 4.08856560147647 3.97564565989455 2463966.165282189 1.81394956176224 183.152914723925 54.0136655257402 -86.5367657079858 1255007.16627699 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 14:50:38 2019-Jul-14 14:50
2093-Nov-26 02:11 00:07 Jupiter 1.82656317463986 1.82656191274501 1.82656443653544 4.31085262112983 4.2019044325404 2485842.590748260 7.00110724352188 534.611066575295 56.1825297916685 -88.6586469681246 1217994.4502222 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 14:50:38 2019-Jul-14 14:50
2153-Oct-18 17:44 00:12 Jupiter 1.86936196236321 1.86935856950889 1.86936535521743 4.36102896412338 4.2558616042128 2507718.239171886 12.3693336257496 208.957042611836 167.458604819114 88.190531166578 1038051.65010719 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 14:50:38 2019-Jul-14 14:50
2163-Sep-23 04:24 00:14 Jupiter 1.98571825611787 1.98571279090014 1.98572372133797 3.73568923586938 3.61970434839723 2511344.683055202 14.0390758701261 295.719743143892 101.736648584475 -3.38380098989473 1432375.95757649 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 14:50:38 2019-Jul-14 14:50
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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