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15662 (4064 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2015662
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03098335676683563 3.0972e-08  
a 2.292521056428068 6.5407e-09 au
q 2.221491058641274 7.177e-08 au
i 8.516690391344605 3.3939e-06 deg
node 176.7188183405856 1.86e-05 deg
peri 321.8203624061194 5.5728e-05 deg
M 85.49067412859817 5.1075e-05 deg
tp 2458899.418086348330
(2020-Feb-19.91808635)
0.00018021 TDB
period 1267.851610943643
3.47
5.4259e-06
1.486e-08
d
yr
n .2839449008800465 1.2152e-09 deg/d
Q 2.363551054214862 6.7434e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2224  
   data-arc span      17069 days (46.73 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:32:11  

Additional Information
 Earth MOID = 1.23654 au 
 Jupiter MOID = 2.61477 au 
 T_jup = 3.582 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457265.5 (2015-Aug-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0307538728114815 3.1247e-08  
q 2.22238452821159 7.2446e-08 au
tp 2457635.796960759082
(2016-Sep-04.29696076)
0.0001815 TDB
node 176.7393086743733 1.8593e-05 deg
peri 323.1404366749854 5.5624e-05 deg
i 8.517418252059374 3.3947e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2224  
   data-arc span      17069 days (46.73 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:32:11  

Additional Information
 Jupiter MOID = 2.61477 au 
 T_jup = 3.582 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.763506475226627E-16 -2.25501042964488E-15 1.536976141353668E-12 -2.181421797321066E-15 4.622953803326094E-13 -2.001378296443355E-15
q -2.25501042964488E-15 5.24842642826467E-15 -3.87091572583781E-12 4.827466508839545E-15 -1.163055690069792E-12 4.679817900047003E-15
tp 1.536976141353668E-12 -3.87091572583781E-12 3.294162149246214E-8 3.706996210958463E-12 9.520045056233781E-9 1.007603850544907E-12
node -2.181421797321066E-15 4.827466508839545E-15 3.706996210958463E-12 3.4569503380761E-10 -3.404665644634568E-10 -4.86245744916727E-12
peri 4.622953803326094E-13 -1.163055690069792E-12 9.520045056233781E-9 -3.404665644634568E-10 3.094029018509502E-9 5.067327012459722E-12
i -2.001378296443355E-15 4.679817900047003E-15 1.007603850544907E-12 -4.86245744916727E-12 5.067327012459722E-12 1.152416982399765E-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 14.29   n/a E2021B10  
diameter diameter 2.423 km 0.410 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.756   0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15662 (4064 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000621/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
2087-Dec-11 08:57 00:02 Thisb 0.0445404894845606 0.0445396197127782 0.0445413600942291 4.29318063083836 4.2931805951817 2483665.872591988 2.22750569103412 377.608953648239 25.331729829247 -84.6390595428904 261761.428143084 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 02:32:16 2020-Nov-13 02:32
2088-Jan-30 12:19 < 00:01 Juno 0.0316647758670347 0.0316583792515921 0.0316711732431457 4.7112695382881 4.71126945673667 2483716.013290416 0.80593245544735 402.544026076881 33.2730519988043 37.7966992722518 87680.4000062549 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 02:32:16 2020-Nov-13 02:32
2108-May-05 12:43 < 00:01 Hebe 0.0449789154820287 0.0449689548343936 0.0449888762612147 5.67021060764028 5.67021058326501 2491116.029684634 0.38005745947053 511.258265903204 38.8779432389772 -13.8114085550467 43233.113619132 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 02:32:16 2020-Nov-13 02:32

Alternate Designations
 4064 T-2 = 1989 EM12 = 1991 XZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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