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58418 Luguhu (1996 BA4)
Classification: Main-belt Asteroid          SPK-ID: 2058418
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .176160791330962 8.0311e-08  
a 3.169156224372281 2.4353e-08 au
q 2.610875156035417 2.5556e-07 au
i 28.37914522907972 7.5866e-06 deg
node 20.73663943737157 9.421e-06 deg
peri 15.01353770424203 1.7818e-05 deg
M 202.748898091884 1.4555e-05 deg
tp 2460100.629709209168
(2023-Jun-05.12970921)
8.8631e-05 TDB
period 2060.695864024186
5.64
2.3752e-05
6.503e-08
d
yr
n .1746982688153611 2.0136e-09 deg/d
Q 3.727437292709146 2.8643e-08 au
  Orbit Determination Parameters
   # obs. used (total)      698  
   data-arc span      8885 days (24.33 yr)  
   first obs. used      1996-01-26  
   last obs. used      2020-05-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56086  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:30:06  

Additional Information
 Earth MOID = 1.62103 au 
 Jupiter MOID = 1.76169 au 
 T_jup = 2.994 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457593.5 (2016-Jul-24.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1759496495006008 8.0088e-08  
q 2.613138419946635 2.55e-07 au
tp 2458041.516548206888
(2017-Oct-15.01654821)
7.8515e-05 TDB
node 20.75062216127679 9.4219e-06 deg
peri 15.41407533778854 1.791e-05 deg
i 28.3724141056339 7.5849e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      698  
   data-arc span      8885 days (24.33 yr)  
   first obs. used      1996-01-26  
   last obs. used      2020-05-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56086  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:30:06  

Additional Information
 Jupiter MOID = 1.76169 au 
 T_jup = 2.994 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.414062428439543E-15 -2.035860927767248E-14 -1.800685979052529E-12 1.61082304181924E-14 -6.002558653338732E-13 -1.813772868303299E-14
q -2.035860927767248E-14 6.50234548072107E-14 6.212331218041561E-12 -5.171058472478161E-14 1.970627245926198E-12 5.980654391715797E-14
tp -1.800685979052529E-12 6.212331218041561E-12 6.164577757496059E-9 -9.219146844582197E-12 1.178268781083739E-9 -1.460848203471724E-11
node 1.61082304181924E-14 -5.171058472478161E-14 -9.219146844582197E-12 8.877287637469166E-11 -7.992657857008032E-11 5.467430357434151E-13
peri -6.002558653338732E-13 1.970627245926198E-12 1.178268781083739E-9 -7.992657857008032E-11 3.207608710183608E-10 -2.644188321460089E-12
i -1.813772868303299E-14 5.980654391715797E-14 -1.460848203471724E-11 5.467430357434151E-13 -2.644188321460089E-12 5.753114982089925E-11

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 14.45   n/a E2021B10  
diameter diameter 9.384 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58418 Luguhu           Discovered 1996 Jan. 26 by the Beijing Schmidt CCD Asteroid Program in Xinglong.
Luguhu Lake is situated at the junction of southwestern Sichuan and northwestern Yunnan. Around the lake live the Mosuo people, who retain the vestiges of their ancient matriarchal society.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080122/MPCPages.arcLast Updated: 2008-03-05

[ 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
1946-Sep-17 10:39 00:02 Jupiter 1.85836875184789 1.85836705807598 1.8583704456216 6.70738609990213 6.63908517291406 2432080.943990255 2.03554369953837 142.788989978658 49.5635377590903 59.4348053880701 2501625.56526024 T 20 CATAB v2.0f-lin.ifort 2021-Apr-13 11:30:09 2021-Apr-13 11:30
1957-Nov-25 05:58 00:02 Jupiter 1.80287734757453 1.80287641835076 1.80287827679851 6.75041490752133 6.68045412604128 2436167.748297554 1.56298735002052 126.844946349557 44.034356719403 -83.6996653503592 2918960.62833414 T 20 CATAB v2.0f-lin.ifort 2021-Apr-13 11:30:09 2021-Apr-13 11:30
2077-Mar-03 14:45 00:02 Jupiter 1.86044440097067 1.86044323547893 1.86044556646284 6.69630507395322 6.62796667956198 2479731.114239241 1.67025454675681 94.3956541460394 45.9399510943944 64.5960413638003 2790360.34590409 T 20 CATAB v2.0f-lin.ifort 2021-Apr-13 11:30:09 2021-Apr-13 11:30
2088-May-10 22:44 00:02 Jupiter 1.80671320473657 1.80671195028139 1.80671445919297 6.74858531445488 6.67875471946256 2483817.447450406 2.06737756330608 137.378730554775 48.0333885852464 -72.2078031814211 2820958.57090967 T 20 CATAB v2.0f-lin.ifort 2021-Apr-13 11:30:09 2021-Apr-13 11:30

Alternate Designations
 1996 BA4 = 2000 RQ6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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