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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6655943680374653 3.0723e-08  
a 2.842172406909633 5.3457e-08 AU
q .950438459879094 7.7122e-08 AU
i 1.980767587612481 1.3896e-05 deg
node 57.97923770629234 0.00014954 deg
peri 238.1238592651764 0.00015311 deg
M 319.7764323145112 4.081e-05 deg
tp 2456996.047443537096
(2014-Dec-04.54744354)
0.00020387 JED
period 1750.145094631956
4.79
4.9377e-05
1.352e-07
d
yr
n .2056972311062619 5.8033e-09 deg/d
Q 4.733906353940172 8.9038e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      174  
   # 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      .71213  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 09:21:16  

Additional Information
 Earth MOID = .0148525 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 22:43 00:02 Earth 0.208800181681085 0.208727671844968 0.208872690498029 18.4607228526314 18.460031593449 2421118.446756592 2.0382023924382 3391.89722688522 39.6925562510439 10.8340774157065 126715.467988783 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
1919-Jul-01 17:47 < 00:01 Jupiter 0.943784625083699 0.943760668272634 0.943808581410738 7.11072870209163 6.98337410757012 2422141.241014563 0.435142988937225 217.228205349588 20.5670193696659 -4.41411861790377 97139.0241472866 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
1930-Oct-02 21:16 00:02 Earth 0.413425536568143 0.413345796903839 0.41350527587126 26.5539011637945 26.5536584532144 2426252.386133202 1.56777111252649 3909.4729563417 38.4848594849458 5.27188285518799 136764.707816256 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
1943-Feb-03 03:26 < 00:01 Jupiter 1.76025975209116 1.76024187899192 1.76027762502865 10.1735327453137 10.1261238866884 2430758.643041503 0.319886043462727 269.139361710528 28.9974732812751 -1.99894628744549 172601.893204945 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
1944-Sep-24 09:08 00:01 Earth 0.224583489238653 0.224534979352912 0.224631998790468 21.5165031736824 21.5159517715964 2431357.880632887 1.27263879612801 2307.00335385091 35.857049572214 9.41031820283347 136459.010113403 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
1958-May-31 02:07 < 00:01 Earth 0.026981707016591 0.0269756734302093 0.0269877406704024 13.6813773633828 13.6741575209545 2436354.588095057 0.423951911293849 228.091043342901 10.2450651415973 -1.92616747631603 16767.9052849702 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
1958-Sep-19 23:18 < 00:01 Mars 0.019880700921109 0.0198774970664981 0.019883905535952 15.0012409002627 15.0002809224278 2436466.470921071 0.230697978082339 241.354062861446 34.1353438785879 -51.9941912540606 65423.8992384501 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
1972-May-05 09:59 < 00:01 Earth 0.258861717198672 0.258858909720543 0.258864524672888 22.5210297618954 22.5205727150757 2441442.915987851 0.0811239811802379 132.802587205272 9.85170835177299 0.489591631811163 262990.79323849 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
1978-Aug-26 14:46 < 00:01 Jupiter 1.39302086077397 1.39301670534517 1.39302501619532 8.30230292487661 8.22873862380292 2443747.115464813 0.191933333353125 39.0040650141976 17.1717752677587 -1.36064932902 738086.810058426 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
1986-May-29 01:31 < 00:01 Earth 0.0283461186456967 0.0283458689749983 0.0283463683163571 14.4532330533769 14.4467279905636 2446579.562851661 0.00704019063698662 11.8675054865403 9.92090024549228 -81.6491827421696 336877.567260444 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2000-Jul-12 03:58 < 00:01 Earth 0.122117674120793 0.12211720980444 0.122118138437358 11.5077959652625 11.5058997944339 2451737.664987339 0.258610928641181 22.3049551386322 15.27082056336 62.8548206674725 810161.048101215 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2002-Apr-24 07:26 < 00:01 Jupiter 0.892891363756787 0.892888607440823 0.892894120068998 6.52265807018124 6.37556355015445 2452388.809578768 0.343000029554406 18.2862382721122 15.0741022294409 -5.74656666986548 794795.373238265 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2015-Feb-20 06:38 < 00:01 Mars 0.0972387471759372 0.0972312914261411 0.0972462029226112 15.7251017753614 15.7249145451393 2457073.776646702 0.308591900995743 359.546874752943 27.3640526436617 5.75502878111177 63553.1615379581 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2024-Jun-02 20:59 < 00:01 Earth 0.0784435353192347 0.0784311437704008 0.0784559267511467 13.9456370749044 13.9432012011832 2460464.374193682 0.667965661470652 517.643930977414 16.9631533265832 9.53073538863638 90812.4068580217 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2026-Feb-14 07:07 < 00:01 Jupiter 1.38908238332893 1.38908166087632 1.38908310578637 8.05586801072002 7.97981621875836 2461085.796295462 0.481413407750938 20.4909835997701 7.72870872614639 -60.2348021457077 3197503.36420629 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2048-Dec-13 19:09 < 00:01 Mars 0.0378043339531191 0.0377913967105947 0.0378172713761104 12.9263988818712 12.925813017774 2469424.297872848 0.501816870133731 605.376001769231 25.9460319799999 -9.23291389675379 33602.3251459798 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2053-Sep-09 03:28 < 00:01 Earth 0.261408128454922 0.261392960230673 0.261423296613986 17.6976992859764 17.697123337645 2471154.644138272 0.405334996459143 710.189614295429 28.9032491283899 6.19236321032186 131698.755343122 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2058-May-27 12:59 < 00:01 Earth 0.260955824973603 0.260940647938894 0.260971001935216 17.7896790724923 17.7891051090205 2472876.040854545 0.403822918699693 707.30058684823 21.0032860254635 3.74367785369521 112667.624667978 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2061-Oct-08 07:59 < 00:01 Jupiter 1.93128031633789 1.93127107385995 1.93128955878087 10.5001216703184 10.4582691416925 2474105.832360157 0.0695857131983648 129.912426097657 26.0308423779897 -5.22703484434641 422239.317709147 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2085-Aug-26 17:55 < 00:01 Jupiter 1.07064613962934 1.07064308191865 1.07064919733597 7.4139131457276 7.30642484096452 2482829.246444840 0.355285689927522 24.4630717760903 18.6764504820962 -31.7951251434576 883911.705438711 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2087-May-19 06:38 < 00:01 Earth 0.23932555518061 0.23932148848134 0.239329621875354 19.7170168032856 19.7164521416342 2483459.776425531 0.160989562969545 190.92959171299 20.1976083915184 4.90859554348872 209305.700837015 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2109-May-20 07:01 < 00:01 Jupiter 1.10913737787192 1.10913310099603 1.10914165473182 7.62817546701307 7.52739711303109 2491495.792163498 0.432483421388654 49.3769838375601 19.8701276716009 1.72031754461778 427271.76725269 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2120-May-11 05:20 < 00:01 Earth 0.287863837875779 0.28783192374757 0.287895751809939 22.5998629126661 22.5994533471571 2495504.722146296 0.812959215898441 1521.1601376844 22.3695075227626 2.02085819963964 65699.0007409877 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2132-Dec-09 04:17 < 00:01 Jupiter 1.95241624447234 1.95241115049515 1.95242133844103 10.733362157583 10.6928666543908 2500099.678448957 0.496188724466071 102.154049082822 25.9439384062973 0.565622490900048 507691.06466586 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2134-May-03 12:54 < 00:01 Earth 0.408398828688012 0.408370172441705 0.408427484867693 26.5779408397505 26.5776953640296 2500610.037470453 0.616935843753204 1398.48908180942 23.1176406221424 1.21286728715283 65233.6049639133 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2157-Sep-28 12:05 < 00:01 Earth 0.244832688849667 0.244823794138097 0.24484158354512 21.479302502446 21.4787958292819 2509159.003545179 0.25796815671234 420.866171941792 21.537003958534 6.18146996829677 179511.049423658 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2166-Aug-23 18:28 < 00:01 Mars 0.0544687219595022 0.0544659364291602 0.0544715074931241 14.2211013284997 14.2207317289663 2512410.269695398 0.0876744966778961 130.830346576979 18.721262178983 -5.64411465014572 70949.9403329409 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2168-Jul-15 20:41 < 00:01 Jupiter 1.26517548189563 1.26517092082071 1.26518004295852 7.70094665118176 7.61351423693113 2513102.361958287 0.320628611900492 43.5495075296996 19.4546137828713 2.13199185160963 558270.874757777 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2171-Sep-21 11:26 < 00:01 Earth 0.207171756474536 0.20716654737742 0.207176965562636 18.9651219524054 18.9644437896514 2514264.976575002 0.133280793190005 242.036635338392 20.1287444949794 5.46798386618374 167332.932990448 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2176-Jan-30 12:59 < 00:01 Mars 0.094184970781416 0.0941776998575305 0.0941922417268169 13.0649295624514 13.0646969026389 2515857.040726466 0.263404169558146 334.990180790597 18.2161106404586 -4.4649537161274 68369.1753969294 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2190-May-21 03:51 < 00:01 Earth 0.22450446317496 0.224488840837961 0.224520085436592 19.6303548227151 19.6297502258154 2521081.660147593 0.400166635216073 727.378229750905 25.9921680720236 3.81972588839714 84690.2344636412 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
2192-Mar-23 10:21 < 00:01 Jupiter 1.01194864906489 1.01194085320277 1.01195644488102 6.76895599562029 6.64414951556661 2521753.931117836 0.277123509568248 65.3817893452726 17.8949888682092 -2.8581684154775 264694.687552458 T 46 CATAB v2.0c-linF95 2013-Aug-05 09:21:18 2013-Aug-05 09:21
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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