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4503 Cleobulus (1989 WM)
Classification: Amor [NEO]          SPK-ID: 2004503
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 212 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5242390195218297 2.7801e-08  
a 2.705224074486506 6.4468e-09 au
q 1.287040058090851 7.6835e-08 au
i 2.512828559933354 4.9274e-06 deg
node 45.95571142488239 7.8301e-05 deg
peri 76.30175744427981 7.8559e-05 deg
M 20.75445880201872 6.3986e-06 deg
tp 2459302.805908443126
(2021-Mar-29.30590844)
2.8576e-05 TDB
period 1625.186822852443
4.45
5.8094e-06
1.591e-08
d
yr
n .2215129946526066 7.9183e-10 deg/d
Q 4.123408090882161 9.8264e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1247  
   data-arc span      14766 days (40.43 yr)  
   first obs. used      1980-12-30  
   last obs. used      2021-06-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50531  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-05 05:49:39  

Additional Information
 Earth MOID = .307105 au 
 Jupiter MOID = .994793 au 
 T_jup = 3.150 
[ 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 15.78   n/a MPO636132  
rotation period rot_per 3.13 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:
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.]
SMASSII spectral type spec_B Sq   n/a Binzel et al. (2004) Icarus 170, 259-294  

4503 Cleobulus (1989 WM)          Discovered 1989-Nov-28 by Shoemaker, C. S. 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-15 13:42 < 00:01 Jupiter 1.36018006471979 1.36017962174707 1.36018050769306 4.62141143508736 4.48463902801009 2415946.070869909 0.435833483758378 62.519538119472 14.3427538649056 -75.1141817751183 4275807.15507742 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
1905-Feb-03 13:55 < 00:01 Mars 0.0404196643246325 0.0404162084349564 0.040423120272286 10.9982914336487 10.9976474112346 2416880.080177544 0.792536522041519 188.612076998202 15.6424072015694 24.0670890576501 161470.66515818 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
1938-Apr-13 08:40 < 00:01 Jupiter 1.80333169316014 1.80333079822704 1.80333258809334 6.15046360843225 6.07361550017097 2429001.861037784 0.358272784191216 62.8729854879165 38.7890097730704 -65.4747569159683 3327012.85353493 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
1961-Mar-06 17:37 < 00:01 Jupiter 1.76581133925331 1.76581005272153 1.76581262578508 5.31649227243003 5.22548870472171 2437365.234133623 0.320980266986713 62.480333444018 53.597563716261 15.5582245100503 1942832.72070021 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
1972-Jan-03 21:33 < 00:01 Earth 0.443432929211098 0.443432043784229 0.443433814641018 1.42068320633902 1.41644740989376 2441320.398021033 0.146461168238343 84.3224199366973 26.477327824279 63.1828036717553 869485.327871972 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
1981-Jan-13 22:26 < 00:01 Earth 0.365706726638472 0.365706320642514 0.365707132634575 1.66229670020637 1.65790791268685 2444618.434998070 0.0877194076348752 26.3644869253578 15.5968224768355 51.8408866760985 1646903.42434203 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
1990-Jan-24 18:12 < 00:01 Earth 0.33467064444103 0.334670380896934 0.334670907985183 1.80485742411352 1.80044087027021 2447916.258465602 0.0564143531843104 22.8892520365391 12.5274244330165 -76.5375351733964 2138191.71990617 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
1996-Dec-27 10:28 < 00:01 Jupiter 1.31101006835328 1.31100906911592 1.31101106759057 4.07597891561759 3.91426063265821 2450444.935944628 0.205636349581925 56.6065977542562 45.3752014162114 -76.7670505734445 1954952.1942512 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
1999-Jan-31 17:39 < 00:01 Earth 0.343527462406641 0.343527099830332 0.343527824983009 2.32406353971299 2.32072378125651 2451210.235723783 0.0531405469017806 22.5474698975801 15.9604601779942 -56.9874317844247 1958595.12866863 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
2032-Aug-01 09:03 < 00:01 Jupiter 1.35311400655946 1.35311333445514 1.35311467866378 4.33693039612402 4.1901079887481 2463445.876958307 0.24062110553339 55.4104614736008 30.3719371898782 -83.2705807112713 2556845.77443707 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
2061-Jan-27 19:44 < 00:01 Earth 0.300195760213924 0.300194670736869 0.300196849699102 2.56987396299059 2.56641784859768 2473852.321940941 0.207446935664057 97.0432925039317 13.566949252314 -56.8648071236645 1993016.88158598 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
2067-Dec-20 03:27 < 00:01 Jupiter 1.93259983874481 1.93259916809927 1.93260050939034 6.10821125593591 6.03603197479809 2476369.644025569 0.396707457129057 52.3453349462814 31.1266609803473 80.6148458778451 2834086.69341625 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
2080-Aug-27 01:49 < 00:01 Jupiter 1.82260110146032 1.82260006755038 1.82260213537058 6.57568815956876 6.50462982606433 2481003.575462686 0.457040327139362 72.4777477384878 35.4144474719654 -54.480816183734 4391008.77040464 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
2083-Jan-26 17:37 < 00:01 Earth 0.292767673492316 0.292767016436001 0.292768330558067 2.4379404741014 2.43420454156901 2481886.233848010 0.2980144790392 93.8459411360393 10.960220851305 -70.6943077303504 2748403.69905307 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
2116-Feb-21 06:52 < 00:01 Jupiter 1.33023489241744 1.33023378127726 1.33023600355814 4.58163029786749 4.4404777937946 2493963.785923454 0.517109139211143 78.2496733765885 32.719983009119 -55.0213069517689 2364537.81717558 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
2145-Jan-02 08:14 < 00:01 Earth 0.483264277247374 0.483259113652339 0.483269441117882 1.09500234369509 1.0899555612381 2504506.843002180 0.844581004690557 634.092066048641 25.960963629352 64.8752660364376 466969.734361016 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
2151-Oct-03 23:45 < 00:01 Jupiter 1.35799487582364 1.35799388682643 1.357995864821 4.64705188054771 4.51083480518373 2506972.489661886 0.463603781928882 66.9625584858539 35.467368996544 -60.0741832947866 1887287.7174921 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
2154-Jan-29 07:10 < 00:01 Earth 0.345780152185485 0.34577945892597 0.345780845453669 1.59037605697772 1.58552344528701 2507820.798407125 0.478775935265268 97.9602079148902 11.6470012102152 -70.316650370485 2407715.14898475 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
2163-Feb-03 04:40 < 00:01 Earth 0.361742982356787 0.361740967033723 0.361744997695827 1.5234609307675 1.51861840766492 2511112.694578715 0.488951828332881 158.084705627286 18.0852017465868 -50.6581788638839 2116304.97427325 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
2172-Feb-07 16:03 < 00:01 Earth 0.391484930108817 0.391482039162144 0.391487821073048 1.36830906212 1.3633259043172 2514404.168816265 0.539721256769861 195.831505118407 22.6886705678741 -42.1379654146161 1660035.74153928 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49
2187-Jul-09 20:12 < 00:01 Jupiter 1.92813879447308 1.92813744384723 1.92814014509881 6.72954663336882 6.66394831029063 2520035.341841193 0.33596519195788 66.7723883987772 51.0176126902797 20.345298338569 1614387.51050948 T 212 CATAB v2.0g-lin.ifort 2021-Jun-05 05:49:43 2021-Jun-05 05:49

Alternate Designations
 1989 WM = 1980 YS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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