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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2091896526428064 1.0091e-07  
a 3.176176472841175 9.2124e-08 au
q 2.511753219755275 3.4731e-07 au
i 25.96443315453841 1.5371e-05 deg
node 292.2609577372415 2.5514e-05 deg
peri 315.9579812102623 5.3896e-05 deg
M 5.074219332155482 5.7298e-05 deg
tp 2458971.357815838744
(2020-May-01.85781584)
0.0003285 TDB
period 2067.54687003166
5.66
8.9952e-05
2.463e-07
d
yr
n .1741193900936754 7.5754e-09 deg/d
Q 3.840599725927074 1.1139e-07 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      4429 days (12.13 yr)  
   first obs. used      2006-12-21  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66002  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:19:51  

Additional Information
 Earth MOID = 1.54847 au 
 Jupiter MOID = 1.54325 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 15.4   n/a MPO472458  
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 12:32 00:07 Jupiter 1.9545456171538 1.9545354173412 1.9545558169665 6.73551496626003 6.67086510274106 2439555.022512796 7.02979560270215 510.044529514206 380.393791914925 8.46108567390648 514072.530669724 T 11 CATAB v2.0e-lin.ifort 2019-Jul-14 12:19:54 2019-Jul-14 12:19
1978-May-03 22:35 00:04 Jupiter 1.58527925430025 1.58527645925833 1.58528204934551 6.69741276939263 6.61715406728387 2443632.441257058 4.36464609269759 380.825095338067 130.143385556362 -82.412268619014 1071839.62372048 T 11 CATAB v2.0e-lin.ifort 2019-Jul-14 12:19:54 2019-Jul-14 12:19
1989-Aug-01 20:57 00:03 Jupiter 1.70440142229985 1.70439790872351 1.70440493607491 6.92907997530787 6.8569837076407 2447740.373080433 2.83342292963772 1352.47627863706 123.829960466209 84.8222654731101 887422.069198982 T 11 CATAB v2.0e-lin.ifort 2019-Jul-14 12:19:54 2019-Jul-14 12:19
2097-Aug-07 09:42 00:08 Jupiter 1.91543056689727 1.91542019161213 1.91544094219471 6.73094195196658 6.66492007435014 2487192.904138204 7.92261631028667 597.248088465663 300.462514215486 35.383440580278 662101.541304869 T 11 CATAB v2.0e-lin.ifort 2019-Jul-14 12:19:54 2019-Jul-14 12:19
2108-Oct-09 07:47 00:08 Jupiter 1.55520405681411 1.55520139312096 1.55520672050788 6.72543962398235 6.6439644076823 2491272.824525806 7.91600608158514 367.118417191653 131.125515619086 86.8983114144589 1200359.13633483 T 11 CATAB v2.0e-lin.ifort 2019-Jul-14 12:19:54 2019-Jul-14 12:19
2120-Jan-07 11:33 00:10 Jupiter 1.71217819605329 1.71216599432032 1.71219040385979 6.96607404938108 6.89469204248949 2495379.981343105 9.5312906602233 5285.92864459683 135.590547654478 83.5908524967689 805496.112749545 T 11 CATAB v2.0e-lin.ifort 2019-Jul-14 12:19:54 2019-Jul-14 12:19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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