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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1695649433001082 4.3053e-08  
a 3.10229717400263 1.7068e-08 au
q 2.576256329592788 1.3577e-07 au
i 6.735504003416306 4.407e-06 deg
node 110.6444721975161 4.7277e-05 deg
peri 309.548923179733 5.0273e-05 deg
M 75.55178261862918 1.6238e-05 deg
tp 2458581.643038630745
(2019-Apr-08.14303863)
8.9329e-05 TDB
period 1995.829891322131
5.46
1.6471e-05
4.51e-08
d
yr
n .1803760939573459 1.4886e-09 deg/d
Q 3.628338018412472 1.9962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1447  
   data-arc span      14281 days (39.10 yr)  
   first obs. used      1980-11-29  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50315  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 22:07:08  

Additional Information
 Earth MOID = 1.59566 au 
 Jupiter MOID = 1.72158 au 
 T_jup = 3.189 
[ 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 13.3   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

[ 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-Nov-13 07:20 00:03 Jupiter 1.99933737602312 1.99933605916863 1.99933869288114 3.75322374696496 3.63859660545823 2416066.805569562 2.92278557231078 163.866093418632 22.2187556680741 72.5947409056756 2317514.48006204 T 30 CATAB v2.0f-lin.ifort 2020-Jan-28 22:07:39 2020-Jan-28 22:07
1912-Dec-05 10:11 00:03 Jupiter 1.75936015549983 1.75935974777887 1.75936056322088 2.23435127670873 2.00734899558095 2419741.924483830 2.73486038130447 126.562702914276 24.8671000670345 -83.982612237467 1976810.12136337 T 30 CATAB v2.0f-lin.ifort 2020-Jan-28 22:07:39 2020-Jan-28 22:07
1922-Dec-15 06:22 00:02 Jupiter 1.93273241565064 1.93273144075087 1.93273339055359 2.11580657577392 1.89740213007706 2423403.765056039 2.45898266372942 179.567969229725 14.3945983128716 88.9152970114873 2240028.16392299 T 30 CATAB v2.0f-lin.ifort 2020-Jan-28 22:07:39 2020-Jan-28 22:07
1984-Mar-04 11:55 < 00:01 Jupiter 1.75781437640523 1.75781399606822 1.75781475674215 2.26486501258468 2.0410514834776 2445763.996222052 0.868420143383195 86.3809967909283 17.2380992077037 86.8971743824251 2488804.15999487 T 30 CATAB v2.0f-lin.ifort 2020-Jan-28 22:07:39 2020-Jan-28 22:07
1994-Mar-15 18:30 < 00:01 Jupiter 1.93161520117452 1.93161458366814 1.93161581868079 2.12883031600823 1.91178161325539 2449427.271027470 0.591740709613063 84.6767611800737 14.494000142574 -88.4049650211598 2244825.13051281 T 30 CATAB v2.0f-lin.ifort 2020-Jan-28 22:07:39 2020-Jan-28 22:07
2055-Jun-03 09:44 00:01 Jupiter 1.75109489343833 1.75109452391011 1.75109526296646 2.2837282607509 2.06106630327463 2471786.905717810 1.09010454411525 91.7920956529457 18.8796171677173 88.4760313865048 2436937.69001681 T 30 CATAB v2.0f-lin.ifort 2020-Jan-28 22:07:39 2020-Jan-28 22:07
2065-Jun-13 14:14 00:01 Jupiter 1.93088098763146 1.93088020181034 1.93088177345335 2.14655769572777 1.93141577150471 2475450.093221140 1.39453114933926 122.335078410298 17.2790802939733 86.8093518448908 2236039.71651089 T 30 CATAB v2.0f-lin.ifort 2020-Jan-28 22:07:39 2020-Jan-28 22:07
2126-Sep-01 01:51 00:03 Jupiter 1.73980335841925 1.73980297862539 1.73980373821331 2.28817657175463 2.06447399712769 2497808.576890063 2.9571146866645 156.578581211408 22.7790692267629 -85.4466900466945 2101564.98684795 T 30 CATAB v2.0f-lin.ifort 2020-Jan-28 22:07:39 2020-Jan-28 22:07
2136-Sep-13 07:35 00:03 Jupiter 1.92768932364192 1.92768796622423 1.92769068106695 2.16186412540383 1.94804025272657 2501473.815849893 3.29185964268811 236.622981998643 18.9910031284199 84.0109877107211 2219844.81383997 T 30 CATAB v2.0f-lin.ifort 2020-Jan-28 22:07:39 2020-Jan-28 22:07
2187-Nov-10 13:51 00:04 Jupiter 1.99526869062453 1.9952668532919 1.99527052796566 3.68787607002367 3.57091009097231 2520159.076973707 4.47146548913488 238.329399774526 21.9403734595029 72.9137747765598 2309970.34205327 T 30 CATAB v2.0f-lin.ifort 2020-Jan-28 22:07:39 2020-Jan-28 22:07
2197-Nov-29 07:31 00:05 Jupiter 1.73116491914067 1.73116449902208 1.73116533926231 2.29615951190885 2.07214638675739 2523830.813413813 4.84555128340416 249.01500235371 22.8547110732286 -84.8543769216687 2049437.71076579 T 30 CATAB v2.0f-lin.ifort 2020-Jan-28 22:07:39 2020-Jan-28 22:07

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