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4015 Wilson-Harrington (1979 VA)
Classification: Apollo [NEO, PHA]          SPK-ID: 2004015
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 189 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6314028135232529 3.8393e-08  
a 2.625557507120584 4.7962e-09 au
q .9677731100575491 1.0185e-07 au
i 2.798390803936604 4.9903e-06 deg
node 266.8048419404685 9.7894e-05 deg
peri 95.38603355345562 9.7889e-05 deg
M 217.3430574363347 3.2004e-06 deg
tp 2459816.273706411146
(2022-Aug-24.77370641)
1.5078e-05 TDB
period 1553.927417230894
4.25
4.2579e-06
1.166e-08
d
yr
n .2316710523336551 6.348e-10 deg/d
Q 4.283341904183619 7.8245e-09 au
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      26104 days (71.47 yr)  
   first obs. used      1949-11-19  
   last obs. used      2021-05-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54955  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-10 05:54:06  

Additional Information
 Earth MOID = .0428218 au 
 Jupiter MOID = 1.22493 au 
 T_jup = 3.082 
[ 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 16.02   n/a E2021B10  
diameter diameter 4 km 0.5 H. Campins et al. (1995) Planet. Space Sci., v.43, pp.733-736 based on ILM thermal model
rotation period rot_per 3.5736 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:
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Urakawa, S.; Okumura, S-i.; Nishiyama, K.; Sakamoto, T.; et al. (2011) Icarus 215, 17-26.]
[Urakawa, S.; Okumura, S-i.; Nishiyama, K.; Sakamoto, T.; et al. (2012) ACM 2012, #6088.]
geometric albedo albedo 0.05   0.01 H. Campins et al. (1995) Planet. Space Sci., v.43, pp.733-736 based on ILM thermal model
B-V BV 0.666   0.018 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=17.84, mean=18.14, max.=18.45) deg.
U-B UB 0.279   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=17.84, mean=18.14, max.=18.45) deg.
Tholen spectral type spec_T CF   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 6 color indices

4015 Wilson-Harrington (1979 VA)          Discovered 1979-Nov-15 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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-Jul-21 17:36 < 00:01 Earth 0.414960123865006 0.414957627720209 0.414962620009827 21.5702480463321 21.5699503634583 2415952.233635157 0.181659094432124 124.564621399247 14.8030703380224 -2.23945238782545 472369.598766472 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
1919-Sep-30 06:08 < 00:01 Earth 0.05254346832976 0.0525432024693167 0.0525437341904392 8.80598667355361 8.80022620689681 2422231.755777058 0.451017369697863 20.0716835789867 12.3292911953925 72.0802810966564 604761.133474465 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
1921-Oct-20 21:02 < 00:01 Jupiter 1.24484322040422 1.24484270643741 1.24484373437111 3.83980734686715 3.65831523518955 2422983.376059084 0.164026361953885 64.6908534285924 24.7138514184177 -82.5729580002363 3976173.84339816 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
1949-Nov-02 07:36 < 00:01 Earth 0.177695847976357 0.177695162715339 0.177696533238163 13.8808439959988 13.8797637165774 2433222.816573064 0.1416670929192 39.3342778545414 9.49526457260504 -30.6971282996085 1224653.6630806 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
1962-Jul-20 13:09 < 00:01 Earth 0.437947532157429 0.437946496363606 0.437948567951252 22.4694178683873 22.4691470980605 2437866.048027382 0.058567107837203 51.6603190816911 14.9503522946671 1.17434516950902 1181637.40762261 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
1969-Feb-05 17:37 < 00:01 Jupiter 1.23647407480534 1.2364734931228 1.23647465648844 3.81388177714529 3.62982549403541 2440258.233919145 0.187986607296861 61.3879974904186 20.2997634351266 -67.7753303492744 7607728.14263409 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
1979-Oct-30 04:49 < 00:01 Earth 0.090717219944155 0.0907165744822719 0.090717865407415 11.9464520035797 11.943993174293 2444176.700681802 0.151860020406221 37.3660127898876 12.0099046737715 -32.4507752369311 623361.032164143 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
1992-Jul-20 07:31 < 00:01 Earth 0.469275253713652 0.469274480281589 0.469276027145716 23.1371909946249 23.1369455935983 2448823.813463806 0.0532206718807477 38.6351362826368 15.1392103718917 3.68235260948614 1715388.1837946 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
1992-Nov-24 17:37 < 00:01 Mars 0.0524492683244082 0.0524486499563982 0.0524498866930562 11.9559637894183 11.9555072371972 2448951.234248673 0.0676738922206157 32.9080785797254 18.7297967816297 -25.1367325111451 281141.737665848 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2005-Apr-20 02:05 < 00:01 Mars 0.0647156850163253 0.0647151082562849 0.0647162617786575 13.3067605769588 13.3064281243673 2453480.586744679 0.0415370054309999 38.1689263408531 18.5125284356916 -48.7449126242925 425237.449799449 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2009-Nov-19 07:57 < 00:01 Earth 0.379179129330943 0.379178663315938 0.37917959534597 20.7609877409861 20.7606492684308 2455154.831161650 0.0589620590713982 23.5087046881036 12.2103773080275 -10.1980001404324 2359927.77101382 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2016-May-18 07:28 < 00:01 Jupiter 1.54912299757267 1.54912209940083 1.5491238957445 4.91350451216835 4.80093486508019 2457526.810930279 0.228795878830463 57.3558596727682 39.9019939873444 -63.9425026805882 2929363.52293313 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2022-Jul-20 16:48 < 00:01 Earth 0.398615196576137 0.398614495978716 0.39861589717358 22.1793571534049 22.1790557747421 2459781.199912066 0.0786322794308265 35.3602995598841 16.1332072604093 -10.0004353272168 1653227.7388959 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2028-Nov-12 16:17 < 00:01 Jupiter 1.6192063632302 1.61920551337505 1.61920721308535 5.05660783321224 4.95207667882639 2462088.178216763 0.288152770819778 55.3967501186713 40.5122778848471 -78.1611408345526 2788727.7754283 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2039-Oct-31 09:06 < 00:01 Earth 0.108291672125876 0.10829045012421 0.108292894130126 12.1297997134559 12.127771096809 2466092.878835372 0.197627541182254 66.6030709148593 11.5103905951964 -24.2041408256629 560517.866913696 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2052-Jul-28 09:13 < 00:01 Earth 0.345787645963719 0.3457868009818 0.345788490945657 19.5188058643541 19.5184110853645 2470746.884005522 0.0967256047015064 42.4512675302406 16.047932791915 -7.56090076945173 1166500.12395406 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2069-Nov-24 08:37 < 00:01 Earth 0.39858400823084 0.398583105483848 0.398584910977877 22.0618856764433 22.0615826693193 2477074.859139258 0.114489986993339 45.538450618609 11.0955858359701 -8.96258822965845 1373419.85261566 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2076-Feb-27 19:27 < 00:01 Jupiter 1.28912578685301 1.28912532103378 1.28912625267239 3.98086322288811 3.81223927054821 2479361.310132123 0.216714387669078 62.0792303302584 20.2662324857119 -78.2652470604727 3815835.77368689 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2082-Aug-18 18:08 < 00:01 Earth 0.107817944871226 0.107816335580357 0.107819554165841 11.929773367268 11.9277016674638 2481725.255476513 0.282985202244203 86.4707137715217 14.1608070207439 -22.1968556507269 411483.647603508 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2112-Nov-16 12:30 < 00:01 Earth 0.279771762364691 0.279770553234782 0.27977297149476 17.8378153989114 17.8372814824479 2492772.020654085 0.128100250329806 61.2170549687417 10.7989990800196 -10.1304584035936 836944.129993821 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2123-Jul-06 06:16 < 00:01 Jupiter 1.19841104197496 1.19841061421128 1.19841146973917 3.67650060731422 3.47894822750535 2496655.761273346 0.124788841628947 63.2405548282926 17.7466556553851 -75.6092304388294 10485857.6285126 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2125-Aug-08 19:57 < 00:01 Earth 0.222910025034541 0.222908876583351 0.222911173485933 15.7862093942816 15.7854521860737 2497420.331536954 0.118334220939894 58.3424230144596 16.2454544239004 -11.4812660623512 613892.464303629 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2130-Mar-29 13:03 < 00:01 Mars 0.0791855964513791 0.0791846982917748 0.0791864946310857 13.3713407006328 13.371070311373 2499114.043962957 0.148458903460525 84.1269694290605 20.9796140293828 60.9410493478916 495035.636244424 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2155-Oct-30 02:17 < 00:01 Earth 0.0956785812897059 0.0956753599785877 0.0956818026260868 11.1536910752873 11.1511940230075 2508459.594966285 0.633748665725113 178.44258400538 10.5975529096877 -25.8807489390126 528991.309864553 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2168-Jul-29 08:02 < 00:01 Earth 0.38912933957267 0.389128115271518 0.389130563873889 20.7130115814244 20.7126809998851 2513115.834615995 0.0931851856487025 61.6863546367858 16.7656786920244 -8.56194392474253 960476.926510747 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2170-Nov-16 22:21 < 00:01 Jupiter 1.23909156461103 1.2390909945844 1.23909213463808 3.90756280226174 3.72852251086548 2513956.431573504 0.156374314958181 59.4318029771478 20.6871432048137 -69.4533489797223 4538941.55888606 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2185-Nov-28 11:49 < 00:01 Earth 0.477375640210642 0.47737439491232 0.477376885508964 23.4658709387976 23.4656330808724 2519446.992109030 0.14803637728335 62.1307088638888 10.4849286677689 -1.91065817705225 1040749.08400954 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54
2198-Sep-11 18:55 00:01 Earth 0.0573319801220598 0.0573312199917311 0.0573327402785904 8.80566637703528 8.8003869912726 2524117.288147368 1.04828328338144 76.0903888932391 14.247681500047 -61.9843616849402 493781.513578162 T 189 CATAB v2.0g-lin.ifort 2021-May-10 05:54:09 2021-May-10 05:54

Alternate Designations
 1979 VA = 107P 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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