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14827 Hypnos (1986 JK)
Classification: Apollo [NEO, PHA]          SPK-ID: 2014827
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6656337851123046 3.7723e-08  
a 2.842312421558725 6.9813e-08 AU
q .9503732459248704 9.3315e-08 AU
i 1.980776591570492 1.6261e-05 deg
node 57.97824365495283 0.00020307 deg
peri 238.1274469673474 0.0002077 deg
M .9166727762206859 5.5487e-05 deg
tp 2456996.043253015393
(2014-Dec-04.54325302)
0.00026961 JED
period 1750.27442297703
4.79
6.4486e-05
1.766e-07
d
yr
n .2056820320711071 7.578e-09 deg/d
Q 4.734251597192579 1.1628e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      180  
   # delay obs. used      0  
   # Doppler obs. used      10  
   data-arc span      5288 days (14.48 yr)  
   first obs. used      1986-05-04  
   last obs. used      2000-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61446  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:28:39  

Additional Information
 Earth MOID = .0150366 AU 
 T_jup = 2.933 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.3 mag n/a PDS3 (MPO 12)  
diameter diameter 0.9 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed dark albedo (0.06)
B-V BV .684 mag .020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=1; phase=4.74 deg.
U-B UB .492 mag .039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=1; phase=4.74 deg.

14827 Hypnos           Discovered 1986 May 5 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Hypnos was the Greek god of sleep and twin brother of death. He entered the sleep of mortals and gave them, at the bidding of the Olympians, dreams of foolishness or inspiration, depending on the individual and their divine protectors or enemies.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

[ 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
1916-Sep-11 22:56 00:03 Earth 0.208934729822376 0.208839067790309 0.20903039007652 18.464687674508 18.4639970088259 2421118.455417154 2.68171790810428 4474.68923042818 46.5253903726319 10.8148239227922 107949.590010259 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
1919-Jul-01 17:47 < 00:01 Jupiter 0.943740674012359 0.94370895142455 0.943772395752173 7.11054994728985 6.98318610747558 2422141.240705691 0.583338754821485 287.728240234489 24.7628766050289 -4.51315974567959 76904.6592169643 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
1930-Oct-02 21:27 00:02 Earth 0.413572506226486 0.413467072571632 0.413677939248778 26.5582007387905 26.5579581537413 2426252.393692174 2.06892367955056 5169.05702475107 44.6998852710478 5.25864708753008 117349.781760196 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
1943-Feb-03 03:28 < 00:01 Jupiter 1.76022744383286 1.76020366979282 1.76025121758686 10.1733983275835 10.125987967409 2430758.644649055 0.405536962170077 357.822745725769 34.6669059982496 -2.11112290657898 131987.776144924 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
1944-Sep-24 09:16 00:02 Earth 0.224672214601409 0.224607923580593 0.224736505033738 21.5191766776996 21.5186255618507 2431357.885977912 1.68267137059081 3057.31547627356 41.4983433244784 9.38921583297012 117575.649104809 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
1958-May-31 02:04 < 00:01 Earth 0.0269706275199856 0.0269626418526012 0.0269786133048868 13.6816745283313 13.6744518761801 2436354.586434998 0.558785250322063 301.939504023503 13.8560046819668 -1.96596236242949 12662.7156684208 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
1958-Sep-19 23:17 < 00:01 Mars 0.0198868234708564 0.0198827039321444 0.0198909442752915 15.0010717793375 15.0001120862401 2436466.470029929 0.305204518285987 309.8269229664 38.2966396392852 -51.7416532640025 58052.870788377 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
1972-May-05 09:59 < 00:01 Earth 0.258866616737349 0.258863119531218 0.258870113940725 22.5211674658739 22.5207104304993 2441442.915652537 0.100724917382215 165.223571278643 13.1006057170181 0.652181722861821 212140.105961621 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
1978-Aug-26 14:45 < 00:01 Jupiter 1.3930251617037 1.3930196825847 1.39303064080943 8.30231907483387 8.22875514628199 2443747.114778437 0.256465251255235 51.3938288374469 21.3369661924376 -1.40157903977273 560300.043123731 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
1986-May-29 01:30 < 00:01 Earth 0.0283456396692294 0.0283453263847313 0.0283459529536427 14.4532157624671 14.4467105819226 2446579.562842610 0.00720354988042075 15.9538677026668 12.5214054959458 -85.4373425393654 267435.083620351 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2000-Jul-12 03:57 < 00:01 Earth 0.12211748354315 0.122116899327026 0.122118067759543 11.5077928933115 11.5058967190173 2451737.664575509 0.311677732364928 27.305956099122 19.1929668137062 60.9365973215422 641402.362947554 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2002-Apr-24 07:24 < 00:01 Jupiter 0.892894746595275 0.892891078824333 0.89289841435854 6.52267037710725 6.37557670473328 2452388.808645317 0.457760036483388 24.3256448877705 18.574254884526 -4.84508442606024 597581.454690672 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2015-Feb-20 06:37 < 00:01 Mars 0.0972290495500673 0.0972192086849722 0.0972388904091069 15.7249398394796 15.7247525886547 2457073.775834846 0.408082479219822 474.41090072935 30.5232041688804 5.56633556551903 52685.3913503533 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2024-Jun-02 20:56 < 00:01 Earth 0.0784586232988006 0.078442224604672 0.0784750217887755 13.9461237861317 13.9436884658909 2460464.372415770 0.885198284403321 685.127222634447 22.0491390044514 9.56025688589573 70040.8977191816 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2026-Feb-14 07:05 < 00:01 Jupiter 1.38908205809392 1.38908122154753 1.38908289464112 8.05587359778486 7.97982184117944 2461085.794995433 0.641296883073137 25.3229015608195 9.70753363376955 -60.3243284287503 2549442.8119363 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2048-Dec-13 19:11 < 00:01 Mars 0.037790311246707 0.0377734889348164 0.0378071338596083 12.9266506865358 12.9260646164564 2469424.299016035 0.650035086609066 786.945110776801 28.9512476369044 -9.12800800960195 29522.1585350642 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2053-Sep-09 03:29 < 00:01 Earth 0.261424829114179 0.261405108688365 0.261444549430494 17.6982246756258 17.6976487811856 2471154.645236820 0.526488159254894 923.64960988673 33.6086571599079 6.28501144344271 113353.18649443 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2058-May-27 13:00 < 00:01 Earth 0.260938058535115 0.260918255653112 0.260957861292496 17.7891560926385 17.7885820732112 2472876.041914826 0.524610562552589 922.833675232219 27.0494896237675 3.70317035076744 86498.4634695445 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2061-Oct-08 07:59 < 00:01 Jupiter 1.93126815744528 1.93125589585189 1.93128041897705 10.5000826864867 10.4582297378287 2474105.832390226 0.0850657613618561 171.886958428697 30.8288724040539 -4.90128380436142 321819.214056858 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2085-Aug-26 17:54 < 00:01 Jupiter 1.07064158430212 1.07063749782803 1.0706456707699 7.41390109068542 7.30641214787236 2482829.245605250 0.472543132683374 32.1015709249678 22.641841705653 -24.0972665598519 664982.568530066 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2087-May-19 06:37 < 00:01 Earth 0.239329603004353 0.239324298692072 0.23933490730889 19.71716565787 19.7166010100319 2483459.775960737 0.212870049808233 249.082031828219 26.3775899973234 4.77876189397074 158728.717789628 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2109-May-20 06:59 < 00:01 Jupiter 1.10914229273184 1.10913669294038 1.1091478924968 7.62819884527461 7.52742125384427 2491495.790974261 0.575194006590917 65.0047443175254 23.6382805130213 1.25032255911416 324307.162679524 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2120-May-11 05:16 00:01 Earth 0.287905467558218 0.287863068355028 0.287947866419044 22.6011002497119 22.6006907658441 2495504.719584962 1.08086365115174 2020.97884562062 29.1258629338756 2.02178860311604 50337.3856317436 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2132-Dec-09 04:15 < 00:01 Jupiter 1.95242273533893 1.95241598595505 1.95242948470464 10.7333929143357 10.6928976625062 2500099.676925908 0.660138374008908 135.683474565681 30.6117598937408 0.458798301917616 382193.298284667 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2134-May-03 12:51 < 00:01 Earth 0.408437010298978 0.408398864808936 0.40847515567105 26.5790689993504 26.5788235569957 2500610.035326004 0.821771726538443 1861.62470074155 30.1060879826143 1.21249976372882 49675.1673358478 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2157-Sep-28 12:04 < 00:01 Earth 0.244819457536614 0.244807610757747 0.244831304287056 21.4789155960167 21.4784088863416 2509159.002702042 0.344140754972491 560.635458525221 24.2281278329992 6.24881645646946 156771.925205668 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2166-Aug-23 18:28 < 00:01 Mars 0.0544712268440618 0.0544678112187925 0.0544746424739712 14.2210716104038 14.2207020270945 2512410.269663914 0.0969269365403391 160.346767549672 23.0924832534458 -5.2904345449825 56668.7158320839 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2168-Jul-15 20:40 < 00:01 Jupiter 1.26518055683212 1.26517457346279 1.2651865401796 7.70097193607988 7.61354016492065 2513102.360987455 0.428154942723448 57.1241346851948 23.8633843571399 1.60504079290153 425223.179388345 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2171-Sep-21 11:27 < 00:01 Earth 0.207176014376372 0.207169556900418 0.207182471838478 18.9652689220585 18.9645907784979 2514264.976836685 0.16368103857444 300.267715475004 22.5850398217676 5.48385176159005 143418.706997774 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2176-Jan-30 13:00 < 00:01 Mars 0.0941942302697597 0.0941847340565592 0.0942037265194505 13.0647999477333 13.064567308484 2515857.041356237 0.338161027779282 437.512384620263 24.0012509637389 -4.4286459404595 51763.8261042595 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2190-May-21 03:52 < 00:01 Earth 0.224483576055566 0.224462965975093 0.224504186004862 19.6297546997733 19.6291500281318 2521081.661334257 0.526265905141003 959.564406082875 33.2802048044102 3.82097842382302 65723.6600367792 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
2192-Mar-23 10:19 < 00:01 Jupiter 1.01195858515135 1.01194825793353 1.01196891228773 6.76899694425975 6.64419247033279 2521753.930196323 0.369847736652596 86.6680887536327 21.8533023805762 -2.87956571955488 200261.711832245 T 49 CATAB v2.0c-linF95 2014-Oct-09 14:28:41 2014-Oct-09 14:28
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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