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441818 (2009 MW8)
Classification: Main-belt Asteroid          SPK-ID: 2441818
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2101577939260231 9.4453e-08  
a 3.176225625415181 8.5334e-08 au
q 2.508717054966624 3.2835e-07 au
i 25.94961184369993 1.4829e-05 deg
node 292.240724787951 2.3901e-05 deg
peri 315.6866314989953 4.8554e-05 deg
M 74.17014770937659 4.8248e-05 deg
tp 2458970.517176408496
(2020-May-01.01717641)
0.00027133 TDB
period 2067.594864362854
5.66
8.3324e-05
2.281e-07
d
yr
n .1741153483232978 7.0168e-09 deg/d
Q 3.843734195863739 1.0327e-07 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      5339 days (14.62 yr)  
   first obs. used      2006-12-21  
   last obs. used      2021-08-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60571  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 23:56:07  

Additional Information
 Earth MOID = 1.54607 au 
 Jupiter MOID = 1.54153 au 
 T_jup = 3.012 
[ 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 15.48   n/a MPCxxxxx  
diameter diameter 5.012 km 0.951 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

441818 (2009 MW8)          Discovered 2009-Jun-28 by OAM at La Sagra
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
1967-Mar-05 12:34 00:06 Jupiter 1.95454792928828 1.95453930197623 1.95455655660087 6.73551685588381 6.67086708788495 2439555.023679340 6.06253639778213 440.933006850314 358.201198498281 22.8876492645186 618533.249182295 T 14 CATAB v2.0g-lin.ifort 2021-Aug-25 23:56:07 2021-Aug-25 23:56
1978-May-03 22:37 00:04 Jupiter 1.58527983443557 1.585277490664 1.58528217820913 6.69741429428048 6.61715564066186 2443632.442044467 3.81149778024463 360.938349571577 111.243463277145 -84.5498036105801 1187245.21964735 T 14 CATAB v2.0g-lin.ifort 2021-Aug-25 23:56:07 2021-Aug-25 23:56
1989-Aug-01 20:58 00:03 Jupiter 1.70440090959407 1.70439768798271 1.70440413136355 6.92908118506058 6.85698490871197 2447740.373621827 2.5451274581626 1264.57613030472 117.989381200576 85.1494733032426 925652.24048752 T 14 CATAB v2.0g-lin.ifort 2021-Aug-25 23:56:07 2021-Aug-25 23:56
2097-Aug-07 09:40 00:07 Jupiter 1.91542843580145 1.91541929804682 1.91543757356196 6.73094335161505 6.66492141441047 2487192.903097728 6.80136606674807 505.678240319589 291.029625620543 32.1740074325325 680193.606851385 T 14 CATAB v2.0g-lin.ifort 2021-Aug-25 23:56:07 2021-Aug-25 23:56
2108-Oct-09 07:46 00:07 Jupiter 1.55520369709991 1.55520116547585 1.55520622872406 6.72544174517222 6.64396653637673 2491272.823546272 6.76324938089996 334.214148100794 125.442608922776 88.6356755789162 1229335.36792338 T 14 CATAB v2.0g-lin.ifort 2021-Aug-25 23:56:07 2021-Aug-25 23:56
2120-Jan-07 11:31 00:08 Jupiter 1.71218080830615 1.71217042597815 1.71219119486083 6.96607836032391 6.89469650793098 2495379.980198080 8.11898073273916 4449.27680276062 132.364811825049 83.575821374982 830329.002507382 T 14 CATAB v2.0g-lin.ifort 2021-Aug-25 23:56:07 2021-Aug-25 23:56
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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