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4439 Muroto (1984 VA)
Classification: Main-belt Asteroid          SPK-ID: 2004439
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2672900709038449 3.1327e-08  
a 3.090344379899512 1.5366e-08 au
q 2.264326011478873 9.7918e-08 au
i 2.292215697906885 4.0193e-06 deg
node 51.89232991605585 0.00010098 deg
peri 17.73744064384967 0.00010133 deg
M 279.9151140569103 1.0127e-05 deg
tp 2459837.924877981568
(2022-Sep-15.42487798)
5.8222e-05 TDB
period 1984.306454357593
5.43
1.48e-05
4.052e-08
d
yr
n .1814235896927261 1.3531e-09 deg/d
Q 3.916362748320152 1.9473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1696  
   data-arc span      24595 days (67.34 yr)  
   first obs. used      1954-04-08  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48389  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 10:31:14  

Additional Information
 Earth MOID = 1.27856 au 
 Jupiter MOID = 1.40816 au 
 T_jup = 3.168 
[ 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 13.31   n/a MPO636131  
diameter diameter 12.184 km 0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.31429 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.068   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4439 Muroto (1984 VA)          Discovered 1984-Nov-02 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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-Apr-30 10:59 00:03 Jupiter 1.77017588610172 1.77017383040251 1.77017794179086 1.69333109847292 1.38216414468433 2415869.957486386 2.70685693418194 256.673080567195 66.3445773783219 14.4059400527585 501384.699992921 T 28 CATAB v2.0g-lin.ifort 2021-Aug-25 10:31:20 2021-Aug-25 10:31
1911-Dec-03 20:11 00:02 Jupiter 1.50252070977596 1.50251952132816 1.50252189824231 0.441268401200514 n/a 2419374.340970172 2.27211473568927 364.863539073889 40.4321056734663 -83.1373153072072 5518179.83647708 F 28 CATAB v2.0g-lin.ifort 2021-Aug-25 10:31:20 2021-Aug-25 10:31
1961-Oct-24 08:39 00:01 Jupiter 1.8078209327166 1.80781976011424 1.80782210531669 1.91303699156825 1.65004421708817 2437596.860098456 1.31518119398995 67.1633063569391 50.9778953821574 42.4390199461358 793558.797933693 T 28 CATAB v2.0g-lin.ifort 2021-Aug-25 10:31:20 2021-Aug-25 10:31
1971-May-21 21:53 < 00:01 Jupiter 1.47715639446584 1.4771558138386 1.47715697510255 0.377385434466422 n/a 2441093.411902650 0.965934222197499 351.454578741484 24.50304393058 -87.4784440206638 9006833.08127343 F 28 CATAB v2.0g-lin.ifort 2021-Aug-25 10:31:20 2021-Aug-25 10:31
2021-Mar-25 08:04 < 00:01 Jupiter 1.82066762419318 1.82066707668219 1.82066817170376 1.99978575506695 1.75176779641755 2459298.836448989 0.29179891774361 54.8184068275731 17.5797845995426 85.3947678449589 1876753.47425218 T 28 CATAB v2.0g-lin.ifort 2021-Aug-25 10:31:20 2021-Aug-25 10:31
2030-Oct-14 15:26 < 00:01 Jupiter 1.46766940040741 1.46766895975254 1.46766984107069 0.340624852340301 n/a 2462789.142861996 0.451297035917574 355.034681357297 19.1028473156528 -88.2446373247345 11484454.57342 F 28 CATAB v2.0g-lin.ifort 2021-Aug-25 10:31:20 2021-Aug-25 10:31
2080-Jul-28 21:04 00:02 Jupiter 1.80670046224356 1.80669933185006 1.80670159263501 1.93683106316517 1.67739941887009 2480974.378103757 1.63507283484118 61.2145977027059 55.7576122092559 24.5408738406588 767010.797027496 T 28 CATAB v2.0g-lin.ifort 2021-Aug-25 10:31:20 2021-Aug-25 10:31
2090-Feb-12 17:32 00:02 Jupiter 1.47406922841299 1.47406832173188 1.47407013510378 0.331827321301109 n/a 2484460.230741253 1.75522011718963 342.93409147972 37.6342996067172 -85.7843547422421 5841917.98699996 F 28 CATAB v2.0g-lin.ifort 2021-Aug-25 10:31:20 2021-Aug-25 10:31
2139-Nov-06 07:56 00:03 Jupiter 1.76567646476206 1.76567447239505 1.76567845712025 1.72810282115121 1.42369526180818 2502622.830401250 3.00308793301995 237.161776476841 64.3536032300404 18.4846836496626 555455.213968697 T 28 CATAB v2.0g-lin.ifort 2021-Aug-25 10:31:20 2021-Aug-25 10:31
2149-May-20 21:18 00:03 Jupiter 1.49952477954126 1.49952316147707 1.49952639761839 0.361480554529211 n/a 2506106.387304949 2.99572787383688 308.250754530599 54.4205199004198 -78.6769835096618 4043054.92357917 F 28 CATAB v2.0g-lin.ifort 2021-Aug-25 10:31:20 2021-Aug-25 10:31
2199-Jan-18 18:12 00:04 Jupiter 1.70095548129008 1.70095287599486 1.70095808658907 1.40845000563987 0.993878317934185 2524246.258610921 4.05458594908429 1155.21391161697 109.859898732201 25.1566776867033 1126416.0346044 T 28 CATAB v2.0g-lin.ifort 2021-Aug-25 10:31:20 2021-Aug-25 10:31

Alternate Designations
 1984 VA = 1975 EN1 = 1980 BH3 = 2019 GN26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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