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11388 (1998 VU4)
Classification: Outer Main-belt Asteroid          SPK-ID: 2011388
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201244123389814 1.3692e-08  
a 3.932033918480725 2.6902e-08 au
q 3.459700654726286 4.6702e-08 au
i 8.210992416392351 2.665e-07 deg
node 217.2147596792663 7.873e-06 deg
peri 278.7176592574945 1.271e-05 deg
M 253.2626385825032 8.441e-06 deg
tp 2460240.880649336646
(2023-Oct-23.38064934)
7.1628e-05 TDB
period 2847.897209789593
7.80
2.9227e-05
8.002e-08
d
yr
n .1264090567463273 1.2973e-09 deg/d
Q 4.404367182235164 3.0134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2651  
   data-arc span      17025 days (46.61 yr)  
   first obs. used      1974-11-15  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44569  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:51:42  

Additional Information
 Earth MOID = 2.48782 au 
 Jupiter MOID = .873071 au 
 T_jup = 3.032 
[ 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 11.21   n/a MPCxxxxx  
diameter diameter 24.602 km 0.378 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 28.74 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Stephens, R.D. (2016) Minor Planet Bull. 43, 252-255.]
geometric albedo albedo 0.088   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

11388 (1998 VU4)          Discovered 1998-Nov-11 by Sarounova, L. at Ondrejov
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

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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
1921-Apr-25 17:35 00:01 Jupiter 1.82387127906581 1.82387082343245 1.82387173469938 3.77607200654318 3.65101376302816 2422805.232902062 1.43630290397216 56.9236512563005 14.7627962977247 74.3203456735476 5542821.96956906 T 42 CATAB v2.0g-lin.ifort 2021-Jul-09 13:53:17 2021-Jul-09 13:53
1945-Sep-02 21:02 00:02 Jupiter 1.78894782985732 1.78894718521929 1.78894847449615 3.88814152663578 3.76439823108027 2431701.376396380 1.68472419503962 77.9962344885026 13.4780993172872 69.357408662911 6219605.06745313 T 42 CATAB v2.0g-lin.ifort 2021-Jul-09 13:53:17 2021-Jul-09 13:53
1969-Nov-15 04:07 00:02 Jupiter 1.73126713788576 1.73126643207007 1.73126784370234 3.84582724368441 3.71643473162441 2440540.671385134 1.5230293633407 79.2107773476142 12.5650612476219 67.315243712691 6559507.56412732 T 42 CATAB v2.0g-lin.ifort 2021-Jul-09 13:53:17 2021-Jul-09 13:53
1993-Sep-17 01:25 < 00:01 Jupiter 1.73372243922544 1.7337219439109 1.73372293454028 3.85197627215099 3.72298359937585 2449247.558883265 0.904848328464468 49.394948002544 11.9213576668848 66.4786053858712 6840182.3679329 T 42 CATAB v2.0g-lin.ifort 2021-Jul-09 13:53:17 2021-Jul-09 13:53
2017-Feb-09 06:18 < 00:01 Jupiter 1.83012044618835 1.8301201560508 1.83012073632591 4.03486005895229 3.9184753357305 2457793.762389183 0.159849342707725 14.4517277294756 8.86149724192025 32.6886245743963 7424094.10653959 T 42 CATAB v2.0g-lin.ifort 2021-Jul-09 13:53:17 2021-Jul-09 13:53
2040-Feb-28 23:36 < 00:01 Jupiter 1.95812241634951 1.9581221485894 1.95812268410974 4.27453162149324 4.1721077573783 2466213.483255627 0.81508979914914 36.8895443406071 9.28087385645199 76.2814215587519 9492336.28797414 T 42 CATAB v2.0g-lin.ifort 2021-Jul-09 13:53:17 2021-Jul-09 13:53
2085-Dec-05 13:03 00:02 Jupiter 1.97697685466245 1.97697628038186 1.97697742894348 4.28137611065422 4.18010702938482 2482930.043509540 1.70904821424169 55.7129899299441 4.93050945672078 -61.6964380349744 15996749.4171639 T 42 CATAB v2.0g-lin.ifort 2021-Jul-09 13:53:17 2021-Jul-09 13:53
2109-Jan-03 04:31 00:02 Jupiter 1.84614089424531 1.8461400122369 1.84614177625378 4.03875912192114 3.92351386984689 2491358.688114859 1.6244345285533 47.7593102876721 3.21966109350157 -30.4507382610458 12608759.6306297 T 42 CATAB v2.0g-lin.ifort 2021-Jul-09 13:53:17 2021-Jul-09 13:53
2132-Jun-26 15:28 00:01 Jupiter 1.77146133575758 1.77146061221506 1.77146205930009 3.90629207684632 3.78190689189212 2499934.144514222 1.09808154387431 35.2672346339855 3.88968298730375 -17.6884922493902 10903121.1907176 T 42 CATAB v2.0g-lin.ifort 2021-Jul-09 13:53:17 2021-Jul-09 13:53
2156-Jun-10 07:24 < 00:01 Jupiter 1.79858352586809 1.79858310966138 1.7985839420748 3.9069394369656 3.78448126551775 2508683.808452622 0.863907382400428 22.2627604324772 3.14579893314735 -31.3289733936094 9486373.45048348 T 42 CATAB v2.0g-lin.ifort 2021-Jul-09 13:53:17 2021-Jul-09 13:53
2180-Sep-25 03:41 00:01 Jupiter 1.85496534287565 1.85496502066029 1.85496566509102 3.87831466848584 3.75873326900903 2517556.653188429 1.33873832502357 26.4846706860383 12.5904149226613 -75.9612158041992 4998650.39206192 T 42 CATAB v2.0g-lin.ifort 2021-Jul-09 13:53:17 2021-Jul-09 13:53

Alternate Designations
 1998 VU4 = 1974 VA2 = 1982 VS3 = 1982 XG2 = 1982 XM2 = 1985 FL1 = 1990 XR = 1992 BM5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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