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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 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6651055483351397 3.0628e-08  
a 2.842630459228242 5.3221e-08 AU
q .9519811689290721 7.6897e-08 AU
i 1.980804849918521 1.3895e-05 deg
node 58.01300119012088 0.00014945 deg
peri 238.0670440467321 0.00015304 deg
M 237.4739795506961 3.8562e-05 deg
tp 2456996.305985958131
(2014-Dec-04.80598596)		 0.00020408 JED
period 1750.568198970226
4.79		 4.9163e-05
1.346e-07		 d
yr
n .2056475150249905 5.7754e-09 deg/d
Q 4.733279749527411 8.8619e-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.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .71203  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 15:37:55  

Additional Information
 Earth MOID = .0150855 AU 
 T_jup = 2.934 
[ 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 0.208795790632151 0.208723285614067 0.208868294631201 18.4605983999114 18.4599071215353 2421118.446492034 2.03809023429141 3391.66751099212 39.6924537990605 10.8342977716292 126715.469286197 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
1919-Jul-01 17:47 < 00:01 Jupiter 0.943787412880392 0.94376345744715 0.943811367829666 7.1107403651369 6.98338635981757 2422141.241284775 0.435126772323693 217.216080438808 20.5670567009174 -4.41408394980784 97142.5150655581 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
1930-Oct-02 21:16 00:02 Earth 0.413419491430888 0.41333975652758 0.413499225973036 26.5537255927767 26.5534828770443 2426252.385823317 1.56768695937382 3909.23669226671 38.4848202588057 5.27195461879513 136764.638753623 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
1943-Feb-03 03:26 < 00:01 Jupiter 1.76026200445903 1.76024413230195 1.76027987645439 10.1735421822633 10.1261334274753 2430758.643057812 0.319862234825835 269.125084643116 28.997499744491 -1.998936518201 172610.533075392 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
1944-Sep-24 09:08 00:01 Earth 0.224579512658697 0.224531005714741 0.224628019268766 21.5163836985721 21.515832283664 2431357.880390328 1.27256994823638 2306.86146196264 35.857007713806 9.4104829696957 136459.011264122 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
1958-May-31 02:07 < 00:01 Earth 0.0269822402500464 0.0269762066675648 0.0269882738999579 13.6813631720378 13.6741434648813 2436354.588170083 0.423953138067585 228.090675855962 10.2450716112 -1.92611642011506 16768.0949965333 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
1958-Sep-19 23:18 < 00:01 Mars 0.0198803863016252 0.0198771825208697 0.0198835908426454 15.0012495324562 15.0002895413473 2436466.470959275 0.230697884271882 241.354117307957 34.1353476196796 -51.9952835120264 65423.808507134 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
1972-May-05 09:59 < 00:01 Earth 0.258861538411227 0.258858730932768 0.258864345887937 22.5210248273616 22.520567780129 2441442.915996902 0.0811240127536887 132.802597397918 9.85170704003025 0.48959221340897 262990.58486523 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
1978-Aug-26 14:46 < 00:01 Jupiter 1.39302052943629 1.39301637400722 1.39302468485791 8.30230197242508 8.22873764347304 2443747.115486734 0.191933351223929 39.0040620404071 17.1717734888155 -1.36064310011856 738086.590533674 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
1986-May-29 01:31 < 00:01 Earth 0.0283461177887688 0.0283458681180718 0.0283463674594278 14.4532330746422 14.4467280116829 2446579.562851608 0.00704019039313857 11.8675053675293 9.92090019451329 -81.6491820604673 336877.559205655 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2000-Jul-12 03:58 < 00:01 Earth 0.122117672900892 0.12211720858458 0.122118137217417 11.507795929811 11.5058997589696 2451737.664989599 0.258610928190748 22.3049549314864 15.2708200799095 62.8548251695165 810161.079097409 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2002-Apr-24 07:26 < 00:01 Jupiter 0.89289153699108 0.892888780674684 0.892894293303721 6.52265892336507 6.37556444829081 2452388.809519980 0.342999925956674 18.2862443102392 15.0741028700013 -5.7465680374097 794795.363610828 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2015-Feb-20 06:38 < 00:01 Mars 0.0972387314268949 0.0972312756792374 0.09724618717143 15.7251015018204 15.7249142718312 2457073.776646954 0.308591852051787 359.546792317046 27.3640649834384 5.75503297443895 63553.1716177221 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2024-Jun-02 20:59 < 00:01 Earth 0.0784434928617531 0.0784311013174854 0.0784558842890992 13.9456358062045 13.9431999309585 2460464.374198618 0.667965578606283 517.643719102128 16.9631547023833 9.53073915019252 90812.382973343 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2026-Feb-14 07:07 < 00:01 Jupiter 1.38908322026441 1.38908249781494 1.38908394271871 8.05587108656316 7.97981936810751 2461085.796185465 0.481413320953776 20.4909625598034 7.72871807666295 -60.2349130216979 3197505.81801312 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2048-Dec-13 19:09 < 00:01 Mars 0.0378057885379591 0.0377928512725008 0.0378187259838735 12.9263739904904 12.9257881486406 2469424.297748674 0.501819234439629 605.3763067299 25.9460476241052 -9.23262316911312 33602.6151181341 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2053-Sep-09 03:27 < 00:01 Earth 0.261406388148644 0.261391219714074 0.261421556518027 17.6976477234629 17.6970717696226 2471154.644027480 0.405343026160036 710.198999252357 28.9032521864264 6.19242980644138 131698.77711881 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2058-May-27 12:59 < 00:01 Earth 0.260957471970118 0.260942294540881 0.260972649326258 17.7897306335047 17.7891566753227 2472876.040735978 0.403832358492015 707.319431704154 21.0033080585496 3.7436307575139 112666.641828151 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2061-Oct-08 07:58 < 00:01 Jupiter 1.93127904526299 1.93126980262058 1.93128828787043 10.5001177773317 10.4582652045117 2474105.832172591 0.0695844535179499 129.914945270976 26.030833483075 -5.22695756714382 422231.077456975 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2085-Aug-26 17:54 < 00:01 Jupiter 1.0706449644437 1.07064190645657 1.07064802242774 7.41390954208654 7.3064210628374 2482829.246101804 0.35528059702329 24.4653981477701 18.6767455506063 -31.7857129371556 883815.211370405 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2087-May-19 06:38 < 00:01 Earth 0.239328579005553 0.23932451323973 0.239332644766851 19.717111476243 19.7165468244409 2483459.776213123 0.160962633080192 190.886458091281 20.1967434335915 4.90979982092744 209360.816745984 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2109-May-20 07:00 < 00:01 Jupiter 1.10913681114669 1.10913253430307 1.10914108797432 7.62817453381459 7.52739611304592 2491495.791721681 0.432480151668606 49.3766705024658 19.87013454506 1.72027796887105 427274.142739469 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2120-May-11 05:19 < 00:01 Earth 0.287872532881706 0.287840618542205 0.287904447027167 22.6001233393088 22.5997137908926 2495504.721624614 0.812953964733083 1521.17364527 22.3695655520626 2.02077210068728 65698.5184308584 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2132-Dec-09 04:16 < 00:01 Jupiter 1.95241583124625 1.95241073697684 1.95242092550716 10.7333622440953 10.6928667316622 2500099.677942254 0.496196793094493 102.158724941295 25.9439049643625 0.565578937466086 507667.698347347 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2134-May-03 12:53 < 00:01 Earth 0.408407788033204 0.408379130970334 0.408436445029448 26.5782082725108 26.5779628046465 2500610.036980428 0.616946933950161 1398.53074187593 23.1177019629133 1.21281707209548 65232.6118800951 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2157-Sep-28 12:05 < 00:01 Earth 0.244825698975887 0.24481680290351 0.244834595032141 21.4790988189783 21.4785921265466 2509159.003153129 0.258007124091667 420.929925496266 21.5368468317106 6.18171644436661 179507.469481407 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2166-Aug-23 18:28 < 00:01 Mars 0.0544654942288018 0.0544627095956741 0.0544682788652077 14.221152785101 14.2207831655276 2512410.269383304 0.0876571245354433 130.788441982291 18.7213119820209 -5.64468229796397 70963.3830201486 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2168-Jul-15 20:40 < 00:01 Jupiter 1.26517749354587 1.26517293291989 1.26518205415943 7.70095536460148 7.61352318810386 2513102.361349658 0.32064251684412 43.5449037637084 19.4546378961921 2.13272501005929 558332.0492839 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2171-Sep-21 11:26 < 00:01 Earth 0.207166173124906 0.207160965100421 0.207171381140369 18.964962098046 18.9642839113022 2514264.976241121 0.13325165889324 241.986165910935 20.1286891659268 5.46786200344503 167341.266061338 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2176-Jan-30 12:58 < 00:01 Mars 0.0941814621600549 0.0941741920047693 0.0941887323368512 13.0649868910241 13.0647542238961 2515857.040325879 0.263367511851365 334.955298455845 18.216122827042 -4.4650856442368 68370.327515747 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2190-May-21 03:50 < 00:01 Earth 0.224510291984242 0.224494670077788 0.224525913815336 19.6305371845764 19.629932608994 2521081.659732373 0.400149873873151 727.359854036789 25.9922280733381 3.8195961215823 84690.7238268865 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
2192-Mar-23 10:20 < 00:01 Jupiter 1.01195046699949 1.01194267126954 1.01195826268345 6.76896444642213 6.64415834838011 2521753.930333235 0.27712222428123 65.3807890709299 17.8950172668749 -2.85818486362616 264699.450574925 T 45 CATAB v2.0c-linF95 2013-Apr-29 15:37:56 2013-Apr-29 15:37
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