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441364 (2008 DY81)
Classification: Main-belt Asteroid          SPK-ID: 2441364
[ 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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2311634584603501 1.023e-07  
a 3.181051736566942 7.5034e-08 au
q 2.445708815600825 3.4034e-07 au
i 14.18542806515444 1.6445e-05 deg
node 9.88742556333129 3.9836e-05 deg
peri 224.2983173258649 5.4692e-05 deg
M 17.16401599385145 4.2402e-05 deg
tp 2458901.696817095644
(2020-Feb-22.19681710)		 0.00024155 TDB
period 2072.30905973928
5.67		 7.3322e-05
2.007e-07		 d
yr
n .1737192617617046 6.1465e-09 deg/d
Q 3.916394657533059 9.2379e-08 au
   Orbit Determination Parameters
   # obs. used (total)      95  
   data-arc span      4076 days (11.16 yr)  
   first obs. used      2008-02-28  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67377  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:35:29  

Additional Information
 Earth MOID = 1.45847 au 
 Jupiter MOID = 1.23751 au 
 T_jup = 3.111 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457062.5 (2015-Feb-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2298465349212571 1.0262e-07  
q 2.450599898991349 3.4211e-07 au
tp 2456827.471982935909
(2014-Jun-18.97198294)		 0.00019442 TDB
node 9.92567760171913 3.9822e-05 deg
peri 224.0164311214342 5.4771e-05 deg
i 14.18549672527548 1.6444e-05 deg
   Orbit Determination Parameters
   # obs. used (total)      95  
   data-arc span      4076 days (11.16 yr)  
   first obs. used      2008-02-28  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67377  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:35:29  

Additional Information
 Jupiter MOID = 1.23751 au 
 T_jup = 3.111 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.053058558578739E-14 -3.459116691054624E-14 -1.064975889462261E-11 8.642239193901603E-14 -2.171932365310365E-12 -2.772679250015769E-14
q -3.459116691054624E-14 1.170426146718115E-13 3.992962303738221E-11 -3.233195296299023E-13 8.150316572288748E-12 1.337387364560885E-13
tp -1.064975889462261E-11 3.992962303738221E-11 3.77991704144158E-8 -1.239449547286178E-10 7.366765796383354E-9 1.017301222951352E-11
node 8.642239193901603E-14 -3.233195296299023E-13 -1.239449547286178E-10 1.585804027624129E-9 -1.562982449592742E-9 -1.90734584694716E-10
peri -2.171932365310365E-12 8.150316572288748E-12 7.366765796383354E-9 -1.562982449592742E-9 2.999816706532357E-9 1.905080532327068E-10
i -2.772679250015769E-14 1.337387364560885E-13 1.017301222951352E-11 -1.90734584694716E-10 1.905080532327068E-10 2.70400592125793E-10

[ 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 16.0   n/a MPO472456  

441364 (2008 DY81)          Discovered 2008-Feb-28 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ 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
1977-Jan-20 04:19 00:11 Jupiter 1.65415798391978 1.65414753337275 1.65416843449924 2.83265659400025 2.64571921720129 2443163.679638879 10.6830327366625 694.992101454008 420.068332642996 -18.7274611560047 530035.342770156 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 10:35:40 2020-Feb-26 10:35
1988-Feb-11 23:44 00:04 Jupiter 1.24753760658877 1.24753483898589 1.24754037419137 3.44125180664277 3.23794734400661 2447203.489185864 3.65865955243943 252.786401189139 121.859772515213 -77.2006677261121 603081.427881202 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 10:35:40 2020-Feb-26 10:35
1999-May-18 00:56 00:02 Jupiter 1.27430663890864 1.27430427898301 1.27430899884877 3.52252296152971 3.32848048032167 2451316.538888268 1.98613782466001 290.056258722582 75.72008634163 72.6141987799359 948475.933899562 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 10:35:40 2020-Feb-26 10:35
2010-May-23 00:43 00:01 Jupiter 1.73282823268021 1.73282609752257 1.73283036822584 3.76793863535633 3.63589645143373 2455339.530138806 1.09888887124721 1779.82645006187 56.4023940528513 87.3056070450531 786904.847425142 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 10:35:40 2020-Feb-26 10:35
2108-Mar-25 04:00 00:18 Jupiter 1.82517635729996 1.82516715815999 1.82518559284384 0.914071363846032 n/a 2491074.666859063 18.4017168036279 13696.7822375269 158.097821181642 -88.1941922695425 1725736.71163395 F 8 CATAB v2.0f-lin.ifort 2020-Feb-26 10:35:40 2020-Feb-26 10:35
2118-Nov-27 13:27 00:09 Jupiter 1.36091996366412 1.36091275890157 1.36092716843734 3.16570651604062 2.9625864413157 2494974.060091179 9.06202124070515 436.45861358696 183.587483052812 -31.5814774528811 471174.47549533 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 10:35:40 2020-Feb-26 10:35
2130-Feb-17 01:02 00:10 Jupiter 1.26621008433001 1.26620728496672 1.26621288381579 3.36754372658688 3.16266731162541 2499073.543142712 10.1579773363263 721.651839993075 64.2551548571842 81.6475072608442 734088.72299934 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 10:35:40 2020-Feb-26 10:35
2141-Mar-19 14:56 00:17 Jupiter 1.59334305537491 1.59332640218541 1.59335971495256 3.73024992938604 3.58490764792932 2503122.121913487 16.5516030566763 5224.95151683157 62.9571858322125 81.2617255796663 683077.932645552 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 10:35:40 2020-Feb-26 10:35

Alternate Designations
 2008 DY81 = 2010 TX42 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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