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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 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6656337851109047 3.7723e-08  
a 2.842312421662539 6.9813e-08 AU
q .9503732459635614 9.3315e-08 AU
i 1.980776591718274 1.6261e-05 deg
node 57.97824365529511 0.00020307 deg
peri 238.1274469675273 0.0002077 deg
M .9166727462717069 5.5487e-05 deg
tp 2456996.043253160757
(2014-Dec-04.54325316)
0.00026961 JED
period 1750.274423072922
4.79
6.4486e-05
1.766e-07
d
yr
n .2056820320598385 7.578e-09 deg/d
Q 4.734251597361516 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      .61447  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-08 06:15:44  

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 0.20893476432716 0.208839102305479 0.209030424570918 18.4646886993587 18.463998033829 2421118.455419452 2.6817173917348 4474.68879247137 46.5253910982329 10.8148222333728 107949.591181548 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
1919-Jul-01 17:47 < 00:01 Jupiter 0.943740662946285 0.943708940363029 0.943772384681546 7.11054993553332 6.98318609399757 2422141.240710976 0.583338785783791 287.72819687673 24.7628763671265 -4.51315918037559 76904.6607597064 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
1930-Oct-02 21:27 00:02 Earth 0.413572545807319 0.413467112169521 0.413677978812557 26.5582018923968 26.5579593073813 2426252.393694070 2.06892326804591 5169.05621473734 44.6998854290559 5.2586466633621 117349.784151788 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
1943-Feb-03 03:28 < 00:01 Jupiter 1.76022743573127 1.7602036616957 1.7602512094808 10.1733982771859 10.1259879165567 2430758.644648114 0.405537049159483 357.822675568731 34.6669056205467 -2.11112225838677 131987.792994399 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
1944-Sep-24 09:16 00:02 Earth 0.224672238802482 0.224607947793648 0.22473652922283 21.5191774342611 21.5186263184909 2431357.885979838 1.68267101110977 3057.31492367785 41.4983435248866 9.38921492244462 117575.651003134 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
1958-May-31 02:04 < 00:01 Earth 0.0269706247770556 0.0269626391134707 0.0269786105581572 13.6816745995458 13.6744519466975 2436354.586434238 0.558784995102085 301.939361511183 13.8560043206433 -1.96596198631356 12662.717637522 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
1958-Sep-19 23:17 < 00:01 Mars 0.0198868253817502 0.0198827058435598 0.0198909461856629 15.0010717285262 15.0001120355177 2436466.470029361 0.305204383783848 309.826840870145 38.2966394641839 -51.7416470553477 58052.8719171093 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
1972-May-05 09:59 < 00:01 Earth 0.258866619357594 0.258863122151761 0.258870116560712 22.5211675477002 22.520710512332 2441442.915652307 0.100724920371751 165.223560790512 13.1006050836845 0.652182549513783 212140.12698727 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
1978-Aug-26 14:45 < 00:01 Jupiter 1.39302516120549 1.39301968208508 1.39303064031263 8.30231909499446 8.22875516659639 2443747.114776192 0.256465189084237 51.3938444034306 21.3369662288943 -1.40157999998151 560299.87621619 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
1986-May-29 01:30 < 00:01 Earth 0.0283456392770997 0.0283453259925984 0.0283459525615161 14.4532157552163 14.4467105745785 2446579.562842411 0.00720354958319527 15.9538676279264 12.521405589249 -85.437339863727 267435.07750299 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2000-Jul-12 03:57 < 00:01 Earth 0.122117483543022 0.122116899326925 0.122118067759387 11.507792877474 11.5058967031772 2451737.664574817 0.311677733062861 27.3059559641743 19.1929657523691 60.9366001142794 641402.401338449 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2002-Apr-24 07:24 < 00:01 Jupiter 0.892894746607805 0.892891078837954 0.892898414371068 6.52267036269554 6.37557668999115 2452388.808647819 0.457760036598449 24.3256447736556 18.5742548070455 -4.84508424598067 597581.456075495 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2015-Feb-20 06:37 < 00:01 Mars 0.0972290517788865 0.0972192109137807 0.0972388926379367 15.7249398772573 15.7247526264371 2457073.775834628 0.408082478318818 474.410901364286 30.523204186873 5.56633546411804 52685.3918645634 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2024-Jun-02 20:56 < 00:01 Earth 0.0784586189396764 0.078442220246197 0.0784750174290022 13.9461236508305 13.9436883304307 2460464.372416163 0.885198274743492 685.127193073448 22.0491389245518 9.56025750442586 70040.8982423605 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2026-Feb-14 07:05 < 00:01 Jupiter 1.38908205953523 1.38908122299293 1.38908289608228 8.05587364230291 7.97982188620106 2461085.794991306 0.641296878192211 25.3229010363916 9.70753163506112 -60.3243323044062 2549443.4119602 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2048-Dec-13 19:11 < 00:01 Mars 0.0377903187585791 0.0377734964445204 0.0378071413736485 12.9266505548957 12.9260644849268 2469424.299015511 0.65003518916668 786.945206061911 28.9512478173812 -9.12800623830042 29522.1586226062 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2053-Sep-09 03:29 < 00:01 Earth 0.261424819902144 0.261405099473866 0.261444540220922 17.6982244604607 17.6976485659932 2471154.645236917 0.526488250466836 923.649722335819 33.608657141394 6.28501183796233 113353.187185885 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2058-May-27 13:00 < 00:01 Earth 0.26093806803835 0.260918265153774 0.260957870798305 17.7891563161669 17.7885822967677 2472876.041914865 0.524610614146374 922.833798370354 27.049489717751 3.70317011926898 86498.4602254925 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2061-Oct-08 07:59 < 00:01 Jupiter 1.93126816080827 1.93125589921402 1.9312804223409 10.5000826267334 10.4582296779093 2474105.832383730 0.0850657545009937 171.886970847186 30.8288721923392 -4.90128359456201 321819.191756586 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2085-Aug-26 17:54 < 00:01 Jupiter 1.07064158501236 1.07063749853793 1.07064567148161 7.4139010986115 7.30641215598687 2482829.245606166 0.47254313191955 32.1015734492999 22.6418420372207 -24.0972610464351 664982.508943352 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2087-May-19 06:37 < 00:01 Earth 0.239329603748594 0.239324299436925 0.239334908052519 19.7171656925453 19.71660104471 2483459.775960407 0.21287002968039 249.082002709537 26.3775909538804 4.77876135064218 158728.720769878 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2109-May-20 06:59 < 00:01 Jupiter 1.10914229099054 1.10913669119846 1.1091478907561 7.62819877331861 7.52742118076564 2491495.790965639 0.57519402320653 65.0047495244795 23.6382802114471 1.25032221341809 324307.133001651 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2120-May-11 05:16 00:01 Earth 0.287905459549555 0.287863060344081 0.287947858412665 22.6010999656166 22.6006904817322 2495504.719586257 1.08086370830238 2020.97895100482 29.1258627789191 2.02178866324157 50337.385239496 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2132-Dec-09 04:15 < 00:01 Jupiter 1.95242273414147 1.95241598475743 1.95242948350838 10.7333930096263 10.6928977581328 2500099.676934341 0.660138367137376 135.683479328508 30.6117601013064 0.458798377791783 382193.288011146 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2134-May-03 12:51 < 00:01 Earth 0.408437006016449 0.408398860525891 0.408475151389037 26.5790688735516 26.5788234311931 2500610.035326197 0.821771743004944 1861.62472484258 30.1060878165289 1.2124997888607 49675.167362365 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2157-Sep-28 12:04 < 00:01 Earth 0.244819448425365 0.244807601648886 0.244831295173419 21.4789153126633 21.4784086029627 2509159.002701373 0.344140693253481 560.635343857126 24.2281277633192 6.24881674557196 156771.929895147 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2166-Aug-23 18:28 < 00:01 Mars 0.0544712169045053 0.0544678012765715 0.0544746325370795 14.2210717589629 14.22070217559 2512410.269663468 0.0969269981054194 160.346891600323 23.0924851752567 -5.29042890058681 56668.6558351705 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2168-Jul-15 20:40 < 00:01 Jupiter 1.26518055294955 1.26517456957985 1.26518653629788 7.70097189211879 7.61354012018488 2513102.360990501 0.428154898576752 57.12414612355 23.8633837413317 1.60504269772359 425223.092799183 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2171-Sep-21 11:27 < 00:01 Earth 0.207176001176102 0.207169543697554 0.207182458640802 18.9652685213201 18.964590377702 2514264.976835885 0.16368112452688 300.267834615718 22.5850394861124 5.48385278226794 143418.693080542 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2176-Jan-30 13:00 < 00:01 Mars 0.0941942198649331 0.0941847236503517 0.0942037161160048 13.0648001022601 13.0645674629878 2515857.041355050 0.338161078025253 437.512449411198 24.0012516357502 -4.42864528588028 51763.8118416166 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2190-May-21 03:52 < 00:01 Earth 0.224483589058227 0.224462978980095 0.224504199005182 19.6297550456316 19.6291503740358 2521081.661333947 0.526265811502017 959.564301619396 33.2802047500523 3.82097832114042 65723.6643584436 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
2192-Mar-23 10:19 < 00:01 Jupiter 1.01195858175722 1.01194825454029 1.01196890889269 6.7689969280324 6.64419245337811 2521753.930196689 0.36984776133631 86.6680808334111 21.8533022246557 -2.87956488365018 200261.726402581 T 48 CATAB v2.0c-linF95 2014-Sep-08 06:15:47 2014-Sep-08 06:15
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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