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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2307370537522119 1.0668e-07  
a 3.179571660711614 7.8929e-08 au
q 2.445926663524988 3.5042e-07 au
i 14.18703303797967 1.6669e-05 deg
node 9.899138552622745 3.9974e-05 deg
peri 224.2406442420846 5.4674e-05 deg
M 307.6668310909528 4.0491e-05 deg
tp 2458901.541164683967
(2020-Feb-22.04116468)		 0.00024088 TDB
period 2070.86292585452
5.67		 7.711e-05
2.111e-07		 d
yr
n .173840574142033 6.4731e-09 deg/d
Q 3.913216657898239 9.7141e-08 au
   Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      4053 days (11.10 yr)  
   first obs. used      2008-02-28  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67239  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:35:35  

Additional Information
 Earth MOID = 1.4587 au 
 Jupiter MOID = 1.24048 au 
 T_jup = 3.111 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456974.5 (2014-Nov-13.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2297944663284222 1.0703e-07  
q 2.450622088234869 3.5194e-07 au
tp 2456827.458939174513
(2014-Jun-18.95893917)		 0.00019347 TDB
node 9.928250240871174 3.9963e-05 deg
peri 224.0119029256417 5.473e-05 deg
i 14.18543414036257 1.6667e-05 deg
   Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      4053 days (11.10 yr)  
   first obs. used      2008-02-28  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67239  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:35:35  

Additional Information
 Jupiter MOID = 1.24048 au 
 T_jup = 3.111 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.145609171395271E-14 -3.710794971713185E-14 -1.073451420397452E-11 8.623928379442293E-14 -2.241301950371941E-12 -2.563366236354965E-14
q -3.710794971713185E-14 1.238648328723399E-13 4.00761107369742E-11 -3.149178362730004E-13 8.313982715248766E-12 1.29943364236464E-13
tp -1.073451420397452E-11 4.00761107369742E-11 3.743074822461707E-8 -1.161758964200318E-10 7.28531784966861E-9 1.111274861247252E-11
node 8.623928379442293E-14 -3.149178362730004E-13 -1.161758964200318E-10 1.597075979254202E-9 -1.572299451005576E-9 -1.68308302073466E-10
peri -2.241301950371941E-12 8.313982715248766E-12 7.28531784966861E-9 -1.572299451005576E-9 2.995415005135408E-9 1.68910044629977E-10
i -2.563366236354965E-14 1.29943364236464E-13 1.111274861247252E-11 -1.68308302073466E-10 1.68910044629977E-10 2.77785562508357E-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 04:21 00:11 Jupiter 1.65416042861472 1.65414971452318 1.65417114274153 2.8326522387182 2.6457148402264 2443163.681239687 11.0504745852054 717.446194210035 418.821244953277 -18.882080922221 512821.51436486 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 10:35:37 2019-Jul-14 10:35
1988-Feb-11 23:45 00:04 Jupiter 1.24753784744705 1.24753495485928 1.24754074003489 3.44125352288101 3.23794920848768 2447203.489755980 3.79479799557965 256.339363785674 126.215697534406 -75.0425570399078 591549.613139316 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 10:35:37 2019-Jul-14 10:35
1999-May-18 00:57 00:02 Jupiter 1.27430600977819 1.2743036624709 1.27430835709969 3.52252393462374 3.32848141155271 2451316.539244055 2.02212374361724 290.255091861951 76.234427898944 72.8522000537918 917242.658166249 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 10:35:37 2019-Jul-14 10:35
2010-May-23 00:44 00:01 Jupiter 1.73282799778644 1.73282587663123 1.73283011931702 3.76793830656008 3.6358960924728 2455339.530316370 1.09714357550643 1782.92185992594 57.5936673883567 87.3650777078366 785838.853473571 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 10:35:37 2019-Jul-14 10:35
2108-Mar-25 03:54 00:19 Jupiter 1.82517390377195 1.82516452683906 1.82518331816581 0.91409871484861 n/a 2491074.662791477 18.7058936510255 13898.4617757578 161.517468503727 -88.1865093428733 1689189.99233948 F 7 CATAB v2.0e-lin.ifort 2019-Jul-14 10:35:37 2019-Jul-14 10:35
2118-Nov-27 13:24 00:09 Jupiter 1.36091776530732 1.36091049109101 1.36092503953486 3.1657123941742 2.96259238310656 2494974.058172571 9.19177949153307 441.764867489853 182.385409679397 -31.784483353025 461895.491555221 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 10:35:37 2019-Jul-14 10:35
2130-Feb-17 00:59 00:10 Jupiter 1.26621053906936 1.26620758913802 1.26621348912924 3.36754698062728 3.16267085242231 2499073.541170832 10.371308830824 738.548733106825 67.1501968424988 81.2979318020102 723183.342032392 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 10:35:37 2019-Jul-14 10:35
2141-Mar-19 14:51 00:17 Jupiter 1.59334769191076 1.593330583444 1.59336480714266 3.73025537821622 3.58491374917931 2503122.118768416 16.9463961407397 5376.79672894602 65.0316898719024 81.2798979844724 673689.874894448 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 10:35:37 2019-Jul-14 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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