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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0309833070846481 1.6357e-08  
a 2.292521055717716 6.4299e-09 au
q 2.221491171850393 3.8474e-08 au
i 8.516693374065445 6.3985e-07 deg
node 176.7188161160443 6.1552e-06 deg
peri 321.820340151216 3.5813e-05 deg
M 85.49069771106974 3.1818e-05 deg
tp 2458899.418003435283
(2020-Feb-19.91800344)		 0.00011231 TDB
period 1267.851610354365
3.47		 5.334e-06
1.46e-08		 d
yr
n .2839449010120196 1.1946e-09 deg/d
Q 2.36355093958504 6.6291e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2246  
   data-arc span      17069 days (46.73 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49529  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:05:22  

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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0307538232916827 1.6436e-08  
q 2.222384641828388 3.8711e-08 au
tp 2457635.796884978140
(2016-Sep-04.29688498)		 0.00011413 TDB
node 176.7393064383191 6.1532e-06 deg
peri 323.1404164978305 3.5896e-05 deg
i 8.517421227455719 6.3995e-07 deg
   Orbit Determination Parameters
   # obs. used (total)      2246  
   data-arc span      17069 days (46.73 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49529  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:05:22  

Additional Information
 Jupiter MOID = 2.61477 au 
 T_jup = 3.582 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.701330220579473E-16 -6.279623830391368E-16 3.332634794218213E-14 -3.367814013337205E-14 7.098811025278838E-14 -1.970524949238427E-15
q -6.279623830391368E-16 1.498515497779258E-15 -2.571011656905873E-13 7.95918370380514E-14 -2.199957407586719E-13 4.57581300276719E-15
tp 3.332634794218213E-14 -2.571011656905873E-13 1.302675727186028E-8 -2.879856287528421E-10 4.029824729182114E-9 -1.08288667778287E-11
node -3.367814013337205E-14 7.95918370380514E-14 -2.879856287528421E-10 3.786218820470219E-11 -1.240541713917683E-10 4.0988997645929E-13
peri 7.098811025278838E-14 -2.199957407586719E-13 4.029824729182114E-9 -1.240541713917683E-10 1.288542666703148E-9 -3.826807623281529E-12
i -1.970524949238427E-15 4.57581300276719E-15 -1.08288667778287E-11 4.0988997645929E-13 -3.826807623281529E-12 4.0953139329529E-13

[ 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 31 CATAB v2.0f-lin.ifort 2021-Apr-13 01:06:16 2021-Apr-13 01:06
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 31 CATAB v2.0f-lin.ifort 2021-Apr-13 01:06:16 2021-Apr-13 01:06
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 31 CATAB v2.0f-lin.ifort 2021-Apr-13 01:06:16 2021-Apr-13 01:06

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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