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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2672900701537662 3.238e-08  
a 3.090344379433674 1.568e-08 au
q 2.26432601345555 1.0059e-07 au
i 2.292216974540652 4.1481e-06 deg
node 51.89232242491876 0.00010116 deg
peri 17.73744816782139 0.00010151 deg
M 279.9151141675547 1.0142e-05 deg
tp 2459837.924877271890
(2022-Sep-15.42487727)
5.8336e-05 TDB
period 1984.306453908922
5.43
1.5102e-05
4.135e-08
d
yr
n .1814235897337477 1.3808e-09 deg/d
Q 3.916362745411798 1.9871e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1645  
   data-arc span      24559 days (67.24 yr)  
   first obs. used      1954-04-08  
   last obs. used      2021-07-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48737  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:34:48  

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 13.29   n/a E2021B10  
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

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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 1.77017590468385 1.77017381232772 1.77017799702952 1.69333114021875 1.38216419946252 2415869.957497331 2.77389914814117 262.40155398036 67.2145842609697 14.3269256401676 491915.636972205 T 26 CATAB v2.0g-lin.ifort 2021-Jul-09 13:35:04 2021-Jul-09 13:35
1911-Dec-03 20:11 00:02 Jupiter 1.50252070748763 1.50251950840958 1.50252190658421 0.441268546208487 n/a 2419374.340991634 2.32804606542773 369.956820024955 41.4491274439874 -83.2679185818333 5384237.50148517 F 26 CATAB v2.0g-lin.ifort 2021-Jul-09 13:35:04 2021-Jul-09 13:35
1961-Oct-24 08:39 00:01 Jupiter 1.80782094321254 1.80781976210636 1.80782212431647 1.91303704920759 1.65004428556296 2437596.860105168 1.33779228044812 68.1869096013518 51.9803344141513 42.6856281119609 784400.881603733 T 26 CATAB v2.0g-lin.ifort 2021-Jul-09 13:35:04 2021-Jul-09 13:35
1971-May-21 21:53 < 00:01 Jupiter 1.47715639806513 1.47715581725976 1.47715697887997 0.37738562471404 n/a 2441093.411909003 0.981571588734562 358.777251435595 24.7125637354221 -87.581504678109 8931159.61773543 F 26 CATAB v2.0g-lin.ifort 2021-Jul-09 13:35:04 2021-Jul-09 13:35
2021-Mar-25 08:04 < 00:01 Jupiter 1.82066762728919 1.82066706950579 1.82066818507228 1.99978570779778 1.75176774290754 2459298.836443803 0.310211467821575 55.954213334398 17.7087139261706 85.6213803288672 1842791.31145024 T 26 CATAB v2.0g-lin.ifort 2021-Jul-09 13:35:04 2021-Jul-09 13:35
2030-Oct-14 15:26 < 00:01 Jupiter 1.46766940922319 1.46766894203949 1.46766987641614 0.340625120323725 n/a 2462789.142841823 0.474251112554771 366.125457488862 20.1350933019961 -88.1630832070458 10895208.0735544 F 26 CATAB v2.0g-lin.ifort 2021-Jul-09 13:35:04 2021-Jul-09 13:35
2080-Jul-28 21:04 00:02 Jupiter 1.80670045593915 1.80669927831468 1.80670163356136 1.93683101381289 1.67739936090955 2480974.378092190 1.69065589623404 62.7821388938667 57.0186679140694 22.3135502909253 740162.962621385 T 26 CATAB v2.0g-lin.ifort 2021-Jul-09 13:35:04 2021-Jul-09 13:35
2090-Feb-12 17:32 00:02 Jupiter 1.47406924339291 1.47406828926005 1.4740701975369 0.331827574705382 n/a 2484460.230716309 1.80980619637808 355.995855155476 39.0069558233497 -85.5843244969524 5634872.83790322 F 26 CATAB v2.0g-lin.ifort 2021-Jul-09 13:35:04 2021-Jul-09 13:35
2139-Nov-06 07:56 00:03 Jupiter 1.76567645173334 1.76567439442964 1.76567850902771 1.72810276514548 1.42369519134126 2502622.830384172 3.08567780860149 243.352639492631 65.484465718165 18.4440979143847 541357.414559489 T 26 CATAB v2.0g-lin.ifort 2021-Jul-09 13:35:04 2021-Jul-09 13:35
2149-May-20 21:18 00:03 Jupiter 1.49952480011178 1.4995231192942 1.49952648094365 0.361480715745553 n/a 2506106.387291281 3.07411098234429 319.820133666409 55.6228319674338 -78.516851451379 3953429.85999946 F 26 CATAB v2.0g-lin.ifort 2021-Jul-09 13:35:04 2021-Jul-09 13:35
2199-Jan-18 18:12 00:04 Jupiter 1.70095546591574 1.70095279156221 1.70095814027304 1.40844995370328 0.993878239804836 2524246.258590745 4.14926876374162 1181.23323494452 110.891931776692 25.1444703185478 1112872.89249828 T 26 CATAB v2.0g-lin.ifort 2021-Jul-09 13:35:04 2021-Jul-09 13:35

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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