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JPL Small-Body Database Browser
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10540 Hachigoroh (1991 VP4)
Classification: Main-belt Asteroid          SPK-ID: 2010540
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1695649465515454 3.9334e-08  
a 3.102297172697542 1.5585e-08 au
q 2.576256318422073 1.2175e-07 au
i 6.735503837369576 4.4031e-06 deg
node 110.6444928372453 4.0767e-05 deg
peri 309.5489019324136 4.4099e-05 deg
M 75.55178369473782 1.5344e-05 deg
tp 2458581.643032929138
(2019-Apr-08.14303293)
8.4815e-05 TDB
period 1995.829890062709
5.46
1.504e-05
4.118e-08
d
yr
n .180376094071168 1.3592e-09 deg/d
Q 3.628338026973011 1.8228e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1533  
   data-arc span      14312 days (39.18 yr)  
   first obs. used      1980-11-29  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49152  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:44:08  

Additional Information
 Earth MOID = 1.59566 au 
 Jupiter MOID = 1.72158 au 
 T_jup = 3.189 
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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 13.3   n/a MPO502250  
diameter diameter 11.112 km 0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10540 Hachigoroh           Discovered 1991 Nov. 13 by S. Otomo at Kiyosato.
Hachigoroh Kikuchi (1926-1999) was the executive committee chief of the Haramura star party and was instrumental in getting it started. The name was suggested by S. Horiuchi.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040713/MPCPages.arcLast Updated: 2004-07-14

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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-Nov-13 07:20 00:03 Jupiter 1.99933739866269 1.99933621904183 1.9993385782865 3.75322397166954 3.63859683856013 2416066.805612409 2.69212702934517 149.428492238184 21.2687712718758 73.2043083990094 2491731.97003962 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 19:44:21 2020-Feb-22 19:44
1912-Dec-05 10:11 00:03 Jupiter 1.7593601729903 1.75935977012463 1.75936057585616 2.23435120562104 2.00734891883858 2419741.924534500 2.52249050672456 121.34997565859 23.5117572837048 -84.9070254223993 1984587.46253801 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 19:44:21 2020-Feb-22 19:44
1922-Dec-15 06:22 00:02 Jupiter 1.93273239468033 1.93273154053662 1.93273324882646 2.11580641709785 1.89740195063016 2423403.765093732 2.27784984653872 163.449274414567 14.2074550013244 88.8375543893208 2452406.06182026 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 19:44:21 2020-Feb-22 19:44
1984-Mar-04 11:55 < 00:01 Jupiter 1.75781439069139 1.75781401650215 1.75781476488052 2.2648649508614 2.04105141690471 2445763.996250048 0.804869467438577 84.8372673959513 15.3644830991232 85.9032021606572 2509331.04922791 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 19:44:21 2020-Feb-22 19:44
1994-Mar-15 18:30 < 00:01 Jupiter 1.93161519709208 1.93161462545933 1.93161576872473 2.12883022024816 1.91178150613869 2449427.271023795 0.559561115200591 77.9609161959338 13.6514146833688 -87.4897655217099 2443152.89440211 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 19:44:21 2020-Feb-22 19:44
2055-Jun-03 09:44 00:01 Jupiter 1.75109490398367 1.75109454523155 1.7510952627357 2.28372811077175 2.06106613850621 2471786.905699566 1.01304057496103 87.7211179134052 17.3315573541918 87.0462257057035 2570182.7127653 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 19:44:21 2020-Feb-22 19:44
2065-Jun-13 14:14 00:01 Jupiter 1.93088100157219 1.93088021733619 1.93088178580896 2.14655764410156 1.93141571576763 2475450.093179042 1.28262536681428 116.663739071296 16.3240915240425 87.6622487033074 2414078.1546027 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 19:44:21 2020-Feb-22 19:44
2126-Sep-01 01:51 00:03 Jupiter 1.73980336480195 1.73980300296629 1.73980372663762 2.28817641505143 2.06447382430958 2497808.576843799 2.7327924536261 144.93298194096 22.324056261373 -86.0774792315971 2171370.3565934 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 19:44:21 2020-Feb-22 19:44
2136-Sep-13 07:35 00:03 Jupiter 1.92768935570321 1.92768803248442 1.92769067892836 2.16186405852176 1.94804018225478 2501473.815784791 3.03192547910111 222.820734206087 18.2124524318779 84.4187531936422 2403972.66982094 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 19:44:21 2020-Feb-22 19:44
2187-Nov-10 13:51 00:04 Jupiter 1.99526864275168 1.99526688686448 1.99527039864601 3.68787609393843 3.57091011281806 2520159.076909213 4.13272776870015 220.702824436479 21.1272482405716 72.3404290617965 2446880.46110576 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 19:44:21 2020-Feb-22 19:44
2197-Nov-29 07:31 00:04 Jupiter 1.73116492147617 1.73116452995919 1.73116531299512 2.29615934193072 2.07214619872201 2523830.813335902 4.4750064230759 229.282207540255 22.7263194376105 -85.0664015428001 2095565.677876 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 19:44:21 2020-Feb-22 19:44

Alternate Designations
 1991 VP4 = 1980 WZ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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