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14827 Hypnos (1986 JK)
Classification: Apollo [NEO, PHA]          SPK-ID: 2014827
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 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6662279831544159 2.5993e-08  
a 2.841134741944624 2.1076e-08 au
q .9482912729489152 7.4009e-08 au
i 1.980573410094367 1.2438e-05 deg
node 57.96620492645818 0.00019745 deg
peri 238.1094436401666 0.00020207 deg
M 52.71798371876478 2.4045e-05 deg
tp 2458744.351118433561
(2019-Sep-17.85111843)
0.00011409 TDB
period 1749.186726409169
4.79
1.9464e-05
5.329e-08
d
yr
n .2058099313039201 2.2901e-09 deg/d
Q 4.733978210940332 3.5118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      187  
   # delay obs. used      0  
   # Doppler obs. used      10  
   data-arc span      12022 days (32.91 yr)  
   first obs. used      1986-05-04  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63539  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Apr-04 07:36:57  

Additional Information
 Earth MOID = .0145783 au 
 Jupiter MOID = .530308 au 
 T_jup = 2.933 
[ show covariance matrix ]

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 18.3   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 0.684   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.74 deg.
U-B UB 0.492   0.039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #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 22:52 00:07 Earth 0.208891961095464 0.208818945571377 0.208964977744256 18.4634435438524 18.4627526902095 2421118.452749985 6.83539213762832 3720.39134793386 40.2328122571206 11.8640947147912 146422.392231427 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
1919-Jul-01 17:47 < 00:01 Jupiter 0.943755291742876 0.943731759796691 0.943778823666798 7.11061183314049 6.98325111272742 2422141.241078766 0.337193695061829 1150.34693036127 159.232962530431 -2.20991615737275 80971.1589992066 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
1930-Oct-02 21:23 00:06 Earth 0.413524301333277 0.413445278285404 0.413603324533047 26.5568024704043 26.5565598443024 2426252.391275743 5.90065233371389 3960.33593321145 35.4417303573363 5.73269831479859 163569.771536342 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
1943-Feb-03 03:28 00:01 Jupiter 1.76023899426771 1.76022218014981 1.76025580838381 10.1734479217944 10.1260381056479 2430758.644293338 1.40329270278619 833.717402323736 150.014884424432 2.73741169880389 190782.443847662 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
1944-Sep-24 09:13 00:04 Earth 0.224642092707384 0.224594897476841 0.224689288253626 21.5182799083063 21.5177286955869 2431357.884222864 4.13901042219805 2390.62415796799 34.1662809848922 10.1245192659724 162442.672652314 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
1958-May-31 02:05 00:01 Earth 0.0269743818004416 0.0269685176413729 0.0269802459601973 13.6815830226544 13.674361327688 2436354.586962523 1.27805101046042 292.500901023593 15.5281953675751 -1.18545025661275 14944.7453754617 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
1958-Sep-19 23:17 < 00:01 Mars 0.0198853896694102 0.0198817887671465 0.0198889915816831 15.0011135776218 15.0001538179995 2436466.470327784 0.675929899494865 289.308500496529 30.6881207923017 -52.0414872409714 76675.8687831291 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
1972-May-05 09:59 < 00:01 Earth 0.258865919114271 0.258862583253834 0.258869254974709 22.5211579030147 22.5207008662144 2441442.915694111 0.326616360798292 166.350345166303 14.043205288274 0.519736163941175 219195.711747359 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
1978-Aug-26 14:46 < 00:01 Jupiter 1.39302166795229 1.39301971953194 1.39302361637312 8.30230856127161 8.22874435340375 2443747.115080333 0.451748882421038 135.136352379804 86.2633671690878 -65.8578388228988 1485983.18810152 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
1986-May-29 01:30 < 00:01 Earth 0.0283456607386196 0.0283453472857514 0.0283459741915104 14.4532252823544 14.446720110933 2446579.562843214 0.0216441106229047 18.6989248431432 15.5134321616568 -79.4720956228385 268916.595300796 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2000-Jul-12 03:57 < 00:01 Earth 0.122117772999701 0.122117449377645 0.122118096623055 11.5077999859292 11.5059038172987 2451737.664835284 0.402460191766289 32.2138749799477 11.3069434224825 67.5624785521359 1344148.5817428 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2002-Apr-24 07:25 < 00:01 Jupiter 0.892892398582717 0.892890895741758 0.892893901424032 6.52266375290289 6.3755695364285 2452388.809185051 0.566073988636864 141.999048078597 70.5670120320732 -81.0347216384929 1239952.09896199 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2015-Feb-20 06:38 < 00:01 Mars 0.0972352701900633 0.0972317735499136 0.0972387668310974 15.7250470061177 15.7248597685483 2457073.776379192 0.434238251282072 174.988893377208 25.5461542830913 4.90045534633653 95072.8230608735 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2024-Jun-02 20:58 < 00:01 Earth 0.078448113787684 0.0784425135418476 0.0784537140504388 13.9457928531817 13.9433571488503 2460464.373610053 0.942042072901671 285.157196015464 24.7883393230294 11.7330856448719 97156.3478489496 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2026-Feb-14 07:06 < 00:01 Jupiter 1.38908231426531 1.38908158537944 1.38908304315506 8.05587177783647 7.97982001797814 2461085.795776728 0.723339845436463 140.198927563802 18.6897294997731 -77.2711463100029 6294879.37539539 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2048-Dec-13 19:09 < 00:01 Mars 0.0378008953756355 0.037795448389832 0.037806342379555 12.9264644813438 12.9258785669255 2469424.298167432 0.642876685001333 274.762618780968 24.9386667026108 -8.70900546472782 40046.9080697949 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2053-Sep-09 03:28 < 00:01 Earth 0.261412415304767 0.261406003154269 0.261418827457702 17.6978439348911 17.6972680007122 2471154.644446752 0.601894066401136 322.238548393064 31.9508378840078 7.17718976129288 172202.607479869 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2058-May-27 12:59 < 00:01 Earth 0.260950535463949 0.260943953863808 0.260957117065529 17.7895318727122 17.7889578928564 2472876.041128546 0.58767991378844 329.632175396999 27.1184917185847 5.38246571255896 159300.395262597 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2061-Oct-08 07:59 < 00:01 Jupiter 1.93127588342535 1.93127134932227 1.93128041752833 10.5001091189281 10.4582564438156 2474105.832372766 0.223793219467508 225.459946990923 133.697758578105 4.4433004351562 813977.164206198 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2085-Aug-26 17:54 < 00:01 Jupiter 1.07064401363806 1.07064207898303 1.07064594829352 7.41390896408134 7.306420382789 2482829.246171165 0.549465626052539 151.004992373231 90.7403364073193 75.8267564903422 1256915.35736762 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2087-May-19 06:38 < 00:01 Earth 0.239326498134546 0.239323871659704 0.23932912461049 19.7170624455434 19.716497787424 2483459.776260470 0.330434048134065 133.511865006764 20.3886126902419 11.3353770254334 394920.79941104 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2109-May-20 07:00 < 00:01 Jupiter 1.10913873806391 1.10913686825783 1.10914060786997 7.62818424089888 7.52740612880004 2491495.791757048 0.738702332247099 147.653131600553 90.8552746324693 -84.385140893237 1088510.20519075 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2120-May-11 05:18 00:01 Earth 0.287879136898271 0.287862631833288 0.287895641965268 22.6003247865489 22.5999152511758 2495504.721176475 1.46029642430671 823.912524151506 26.9632576130633 2.65412809418406 84066.9209156538 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2132-Dec-09 04:16 < 00:01 Jupiter 1.95241857416693 1.95241607726845 1.95242107106552 10.73337508382 10.6928796779935 2500099.677913285 0.914011889895891 134.983734537736 114.278818400924 -48.7832907969421 1296172.9802207 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2134-May-03 12:53 00:01 Earth 0.408413544990711 0.408398181233866 0.408428908747811 26.5783824124296 26.5781369496322 2500610.036619338 1.2422658732935 766.299726795423 27.0494159648055 1.23470591748856 87321.389627265 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2157-Sep-28 12:05 < 00:01 Earth 0.244826025052879 0.244819728408126 0.244832321699037 21.4791132869054 21.4786065954867 2509159.003153323 0.567769788777778 315.354764329131 19.5166377206211 5.35574203217896 195660.56558171 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2166-Aug-23 18:28 < 00:01 Mars 0.0544691089465862 0.0544676059737071 0.0544706119195055 14.2211017257018 14.2207321288046 2512410.269601753 0.234797165446354 74.9885982029499 23.2443877847307 -1.99754147552007 109940.284968602 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2168-Jul-15 20:41 < 00:01 Jupiter 1.26517665520402 1.26517468531053 1.26517862509751 7.70095537641141 7.61352314390902 2513102.361536940 0.60871942791377 156.908470773844 94.8681718082941 -81.9776759487794 1113262.96320644 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2171-Sep-21 11:26 < 00:01 Earth 0.207172080922461 0.207169489748859 0.207174672096592 18.9651451157416 18.9644669548781 2514264.976614159 0.22763639075716 130.278164605528 20.4821700671583 7.44079835294659 282855.704542861 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2176-Jan-30 12:59 < 00:01 Mars 0.0941882810349256 0.094184749366567 0.0941918127044461 13.0648863177653 13.0646536653597 2515857.040916482 0.378445057698692 176.897582277974 25.491452049022 -5.46341933762 96349.0204536995 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2190-May-21 03:51 < 00:01 Earth 0.2244960021167 0.224487742157242 0.224504262077012 19.6301174276535 19.6295128006545 2521081.660608813 0.684896265666775 412.480538338821 31.0505301344034 3.09464890231998 92483.9970603993 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
2192-Mar-23 10:20 < 00:01 Jupiter 1.01195215140424 1.01194829963178 1.01195600317671 6.76897237195672 6.64416663552997 2521753.930756934 0.567320774841897 198.211513527833 141.329732169945 -27.8210966590532 506948.017823974 T 51 CATAB v2.0e-lin.ifort 2019-Apr-04 07:37:06 2019-Apr-04 07:37
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