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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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1695649470581268 3.8209e-08  
a 3.102297172379433 1.5132e-08 au
q 2.576256316586338 1.1745e-07 au
i 6.735503555294689 4.3715e-06 deg
node 110.6444973871664 3.8627e-05 deg
peri 309.5488972318617 4.2075e-05 deg
M 75.55178395520197 1.513e-05 deg
tp 2458581.643031549557
(2019-Apr-08.14303155)
8.3748e-05 TDB
period 1995.82988975573
5.46
1.4603e-05
3.998e-08
d
yr
n .1803760940989116 1.3197e-09 deg/d
Q 3.628338028172528 1.7698e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1661  
   data-arc span      14395 days (39.41 yr)  
   first obs. used      1980-11-29  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47873  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:22:19  

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 1.99933740521771 1.99933626509164 1.99933854534639 3.7532240932567 3.63859696435941 2416066.805633090 2.62323556217964 144.965665919716 20.965805917568 73.3651990278281 2546325.07882911 T 32 CATAB v2.0f-lin.ifort 2020-May-20 03:22:29 2020-May-20 03:22
1912-Dec-05 10:11 00:02 Jupiter 1.7593601771505 1.75935977572805 1.75936057857315 2.23435114636891 2.00734885345301 2419741.924542972 2.45950731342328 120.033693339284 22.6771235419032 -85.1173825988408 1996560.44620224 T 32 CATAB v2.0f-lin.ifort 2020-May-20 03:22:29 2020-May-20 03:22
1922-Dec-15 06:22 00:02 Jupiter 1.93273238577337 1.93273156736066 1.93273320418828 2.11580641737709 1.8974019498771 2423403.765095940 2.22438781551759 158.169113280061 14.1783521808141 88.7764578890618 2545219.89568977 T 32 CATAB v2.0f-lin.ifort 2020-May-20 03:22:29 2020-May-20 03:22
1984-Mar-04 11:55 < 00:01 Jupiter 1.75781439397782 1.75781402195306 1.75781476600258 2.26486488720152 2.04105134670552 2445763.996251272 0.786580257206588 84.6684817047596 14.4310497591315 85.7906918784823 2528428.4587293 T 32 CATAB v2.0f-lin.ifort 2020-May-20 03:22:29 2020-May-20 03:22
1994-Mar-15 18:30 < 00:01 Jupiter 1.93161519268333 1.93161463328138 1.93161575208518 2.12883022866842 1.91178151499141 2449427.271016388 0.550615526408482 74.9071764496192 13.4702219752066 -87.1354567950499 2522450.22840697 T 32 CATAB v2.0f-lin.ifort 2020-May-20 03:22:29 2020-May-20 03:22
2055-Jun-03 09:44 < 00:01 Jupiter 1.75109490642033 1.751094551593 1.75109526124757 2.28372805704001 2.06106607929628 2471786.905696721 0.989349916339199 86.8086554888952 16.5282457880966 86.7069265748517 2636294.34290992 T 32 CATAB v2.0f-lin.ifort 2020-May-20 03:22:29 2020-May-20 03:22
2065-Jun-13 14:14 00:01 Jupiter 1.93088100234564 1.93088021844429 1.93088178624776 2.14655761082402 1.93141567887426 2475450.093174425 1.24818938771771 114.194850450487 16.0949532696953 87.916788218725 2506557.62553599 T 32 CATAB v2.0f-lin.ifort 2020-May-20 03:22:29 2020-May-20 03:22
2126-Sep-01 01:51 00:03 Jupiter 1.73980336640653 1.7398030109832 1.73980372182985 2.28817633422609 2.06447373494363 2497808.576825723 2.66485544362767 141.602151716449 21.9389658671693 -86.289636323804 2205466.90714383 T 32 CATAB v2.0f-lin.ifort 2020-May-20 03:22:29 2020-May-20 03:22
2136-Sep-13 07:35 00:03 Jupiter 1.92768936323441 1.92768805045803 1.92769067601693 2.16186405097571 1.94804017476168 2501473.815764343 2.95308411845755 218.24497263932 18.0450714880924 84.5431163875189 2502635.82859166 T 32 CATAB v2.0f-lin.ifort 2020-May-20 03:22:29 2020-May-20 03:22
2187-Nov-10 13:51 00:04 Jupiter 1.99526862493726 1.99526689456854 1.99527035531278 3.68787596901948 3.57090998274594 2520159.076875888 4.03089147682673 215.348775971374 20.8586509920392 72.1540322770249 2499181.37191989 T 32 CATAB v2.0f-lin.ifort 2020-May-20 03:22:29 2020-May-20 03:22
2197-Nov-29 07:31 00:04 Jupiter 1.73116492168426 1.73116454013662 1.73116530323356 2.29615927127832 2.07214612045999 2523830.813310991 4.36318456830222 223.426407779026 22.5131167318447 -85.1436321482353 2115690.39964804 T 32 CATAB v2.0f-lin.ifort 2020-May-20 03:22:29 2020-May-20 03:22

Alternate Designations
 1991 VP4 = 1980 WZ4 
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