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441278 (2007 WB44)
Classification: Main-belt Asteroid          SPK-ID: 2441278
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1039064601059479 7.9441e-08  
a 2.990358107292801 4.4124e-08 au
q 2.679640581914884 2.268e-07 au
i 9.651380188754011 8.4291e-06 deg
node 304.001070871877 4.5719e-05 deg
peri 221.1233856655103 5.9086e-05 deg
M 116.3430500542523 3.9248e-05 deg
tp 2458390.090658780391
(2018-Sep-28.59065878)
0.00020216 TDB
period 1888.788051684981
5.17
4.1805e-05
1.145e-07
d
yr
n .1905984102762855 4.2185e-09 deg/d
Q 3.301075632670718 4.8709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      156  
   data-arc span      6817 days (18.66 yr)  
   first obs. used      2000-10-02  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58021  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:41:58  

Additional Information
 Earth MOID = 1.69697 au 
 Jupiter MOID = 1.75893 au 
 T_jup = 3.227 
[ 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 16.1   n/a MPO434637  

441278 (2007 WB44)          Discovered 2007-Nov-19 by Mt. Lemmon Survey at Mount Lemmon
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
1902-Jan-27 01:20 00:07 Jupiter 1.95236190132396 1.95235785682781 1.95236594588291 3.89954394202982 3.78665457725735 2415776.555495688 7.26795968940455 611.989892440053 39.5011148436796 72.3606832758319 1385592.49030859 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 07:41:59 2019-Sep-24 07:41
1938-Jul-27 13:50 00:05 Jupiter 1.77023562402659 1.77023458464568 1.77023666341223 3.31804193717221 3.17055864159134 2429107.076258427 4.98162098850283 346.577152035889 29.546596662857 86.1089595055744 963784.390223943 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 07:41:59 2019-Sep-24 07:41
1975-Feb-10 21:37 00:03 Jupiter 1.78703064755023 1.78702939893443 1.78703189619447 2.49443719034538 2.29657364007423 2442454.400487179 2.82344364749542 703.366162717212 45.2771804328557 84.6924139602661 1436583.3583973 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 07:41:59 2019-Sep-24 07:41
2011-Oct-01 05:09 < 00:01 Jupiter 1.94427209340953 1.94427113479389 1.94427305202506 2.45126640278719 2.26658478515023 2455835.714426147 0.494265648948703 80.6472289309329 21.9376556813859 -70.2392422107546 1457850.12348388 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 07:41:59 2019-Sep-24 07:41
2056-Dec-29 06:50 00:03 Jupiter 1.80972248751911 1.80972118904528 1.80972378600055 3.4664654572382 3.32870887329994 2472361.784479265 2.64260133908927 320.182047355768 36.5711296783858 83.0151256942482 1120076.82413326 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 07:41:59 2019-Sep-24 07:41
2093-Jul-12 04:30 00:05 Jupiter 1.76968627437426 1.76968536010351 1.76968718866402 2.59853389978529 2.40730579065418 2485705.687237853 5.4083054457434 1011.01505163503 40.7195079552481 85.4034977681004 1481411.95229999 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 07:41:59 2019-Sep-24 07:41
2130-Feb-27 03:51 00:09 Jupiter 1.89204105562554 1.89203854157112 1.89204356968136 2.19085007163085 1.97597338719099 2499083.660761305 8.65687934584896 226.478729917114 38.0597112832876 89.5728177538906 966898.210570488 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 07:41:59 2019-Sep-24 07:41
2175-Jun-06 00:09 00:10 Jupiter 1.85775937921669 1.85775510276271 1.85776365576951 3.62822066667998 3.50030139138996 2515618.506010459 10.2017502078824 750.277098310093 44.4275605673369 76.5748411159955 953679.233994024 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 07:41:59 2019-Sep-24 07:41
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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