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136574 (1981 EW16)
Classification: Main-belt Asteroid          SPK-ID: 2136574
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .229171027413267 5.4932e-08  
a 2.753924433222558 2.0028e-08 au
q 2.122804741442446 1.4602e-07 au
i 2.639926769943071 5.4433e-06 deg
node 229.1539551313667 0.00014095 deg
peri 349.532941118995 0.00014152 deg
M 175.2090626335635 1.3259e-05 deg
tp 2458188.080159382818
(2018-Mar-10.58015938)
5.8564e-05 TDB
period 1669.269489979903
4.57
1.821e-05
4.986e-08
d
yr
n .2156632000770194 2.3527e-09 deg/d
Q 3.385044125002671 2.4618e-08 au
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      14131 days (38.69 yr)  
   first obs. used      1981-02-12  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65158  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 16:04:00  

Additional Information
 Earth MOID = 1.1153 au 
 Jupiter MOID = 1.59398 au 
 T_jup = 3.304 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456936.5 (2014-Oct-06.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2287396564799713 5.491e-08  
q 2.124907235573461 1.4592e-07 au
tp 2456519.108976922690
(2013-Aug-14.60897692)
5.7173e-05 TDB
node 229.1687050950576 0.00014107 deg
peri 349.6728697493196 0.00014165 deg
i 2.637750885748248 5.4429e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      14131 days (38.69 yr)  
   first obs. used      1981-02-12  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65158  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 16:04:00  

Additional Information
 Jupiter MOID = 1.59398 au 
 T_jup = 3.304 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.015152979155952E-15 -7.973739051273492E-15 -1.150351934815152E-12 3.514289745442908E-14 -3.23631845883173E-13 -1.033674712786345E-15
q -7.973739051273492E-15 2.129272798961018E-14 3.107998439781004E-12 -7.681575799376988E-14 8.653117045864739E-13 2.927929019352946E-15
tp -1.150351934815152E-12 3.107998439781004E-12 3.268765492429184E-9 -1.073271772654695E-11 7.942542574351944E-10 4.10920676022126E-13
node 3.514289745442908E-14 -7.681575799376988E-14 -1.073271772654695E-11 1.990174643444613E-8 -1.988063106771535E-8 -2.468778843055404E-10
peri -3.23631845883173E-13 8.653117045864739E-13 7.942542574351944E-10 -1.988063106771535E-8 2.006399873232457E-8 2.467526743191649E-10
i -1.033674712786345E-15 2.927929019352946E-15 4.10920676022126E-13 -2.468778843055404E-10 2.467526743191649E-10 2.962526120080311E-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 16.3   n/a MPO449765  
diameter diameter 4.195 km 1.356 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136574 (1981 EW16)          Discovered 1981-Mar-06 by Bus, S. J. at Siding Spring
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ 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
1928-Oct-21 23:06 00:03 Jupiter 1.58669203341248 1.58669140009379 1.58669266673434 0.944737356960773 n/a 2425541.462637155 2.92295160584187 202.428132155015 26.1619850526664 -84.9442184004649 9035476.75651697 F 12 CATAB v2.0f-lin.ifort 2019-Nov-07 16:04:02 2019-Nov-07 16:04
1988-Jul-20 23:02 < 00:01 Jupiter 1.6402785923427 1.64027786183219 1.64027932297592 1.11336721202637 0.45476114926004 2447363.459702736 0.952763700652145 3792.94379343562 486.576703370025 -26.0051116406433 3211850.6662393 T 12 CATAB v2.0f-lin.ifort 2019-Nov-07 16:04:02 2019-Nov-07 16:04
2010-Sep-12 20:40 < 00:01 Jupiter 1.82750240095138 1.82750172988577 1.82750307201554 1.47046260806301 1.11143487170858 2455452.360802174 0.298007149406443 207.782161810131 103.269354302319 19.2209399391626 1148825.99350996 T 12 CATAB v2.0f-lin.ifort 2019-Nov-07 16:04:02 2019-Nov-07 16:04
2048-Apr-23 12:13 00:01 Jupiter 1.76138025372713 1.76137952713107 1.7613809803263 1.4016344051004 1.00140285311354 2469190.009291893 1.17132289326351 313.097131784242 102.914769378594 -42.6048740101162 2520655.02109712 T 12 CATAB v2.0f-lin.ifort 2019-Nov-07 16:04:02 2019-Nov-07 16:04
2070-Jun-21 20:03 00:02 Jupiter 1.6856500241558 1.68564863280991 1.68565141551051 1.05684690537381 0.334581981539735 2477284.335137556 1.97950020049436 11432.9299992985 1129.22148415105 -1.34136612923644 587703.059602068 T 12 CATAB v2.0f-lin.ifort 2019-Nov-07 16:04:02 2019-Nov-07 16:04
2108-Jan-28 19:41 00:03 Jupiter 1.92702839858205 1.9270258362834 1.92703096087709 1.86639718885202 1.61379719605867 2491018.320011899 3.29235481170422 150.803631258759 40.7162316890797 -76.6675183365357 967417.583565052 T 12 CATAB v2.0f-lin.ifort 2019-Nov-07 16:04:02 2019-Nov-07 16:04
2130-Mar-22 11:52 00:04 Jupiter 1.60200334413131 1.60200205154171 1.60200463673535 0.959118215315746 n/a 2499106.994624611 3.88896817266863 265.282596616234 23.3602049356214 76.8595986558438 9989583.97982913 F 12 CATAB v2.0f-lin.ifort 2019-Nov-07 16:04:02 2019-Nov-07 16:04
2189-Dec-13 05:26 00:06 Jupiter 1.58789440102453 1.5878938343992 1.58789496766458 1.01534076002538 n/a 2520922.726592787 5.91334878877706 420.223931955678 23.1194179863294 -87.7812486113781 10263942.3185587 F 12 CATAB v2.0f-lin.ifort 2019-Nov-07 16:04:02 2019-Nov-07 16:04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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