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2461 Clavel (1981 EC1)
Classification: Main-belt Asteroid          SPK-ID: 2002461
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1676533317200853 3.581e-08  
a 3.182018755450892 1.3872e-08 au
q 2.648542709503751 1.1427e-07 au
i 2.510111360581758 3.7494e-06 deg
node 116.0350722586423 8.7554e-05 deg
peri 231.8142355168767 8.8171e-05 deg
M 148.2012601801096 1.1416e-05 deg
tp 2458147.003144613431
(2018-Jan-28.50314461)
6.4103e-05 TDB
period 2073.2540841134
5.68
1.3557e-05
3.712e-08
d
yr
n .1736400775758989 1.1355e-09 deg/d
Q 3.715494801398033 1.6198e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3227  
   data-arc span      23641 days (64.73 yr)  
   first obs. used      1955-09-23  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45221  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:45:27  

Additional Information
 Earth MOID = 1.64282 au 
 Jupiter MOID = 1.70715 au 
 T_jup = 3.176 
[ 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 11.7   n/a MPO384772  
diameter diameter 25.943 km 0.282 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.238 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.060   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2461 Clavel (1981 EC1)          Discovered 1981-Mar-05 by Debehogne, H. at La Silla
and G. de Sanctis.
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
1981-Jun-26 11:53 < 00:01 Jupiter 1.88391428228391 1.88391375494679 1.88391480962093 2.25027217956546 2.04071294518129 2444781.995005641 0.853126702941044 54.5035225900123 3.50538779371735 -84.3518001270574 2575125.64469166 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:45:39 2020-Jun-23 15:45
1992-May-13 02:15 < 00:01 Jupiter 1.73647157274965 1.73647118129065 1.73647196420836 1.78206336877007 1.48330120513674 2448755.593915538 0.572370450821798 60.4708413248488 23.6342179893547 -80.1751920202165 2655022.52684211 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:45:39 2020-Jun-23 15:45
2003-Apr-01 12:47 < 00:01 Jupiter 1.70902683103432 1.70902649502131 1.70902716704713 1.83893884298245 1.54611200867398 2452731.032337725 0.318972553639644 49.3504230725925 20.4872169117029 -79.9728459985798 2881124.91301297 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:45:39 2020-Jun-23 15:45
2014-Feb-06 05:58 < 00:01 Jupiter 1.81161605781644 1.81161572114699 1.8116163944858 2.46665171268439 2.26920010030433 2456694.748395931 0.179407044095293 38.4019502391546 5.72854317526512 89.2281779822399 3471172.35926131 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:45:39 2020-Jun-23 15:45
2024-Nov-30 00:23 < 00:01 Jupiter 1.9975589012013 1.99755855394312 1.99755924845943 3.66827392674868 3.55079934516808 2460644.515930090 0.277335249634225 33.9698283556011 13.8260632267588 -89.7173164702228 4401912.35239939 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:45:39 2020-Jun-23 15:45
2100-Dec-09 09:50 00:01 Jupiter 1.99866196554937 1.99866141998489 1.99866251111395 2.76313968899125 2.60525456972033 2488411.909670193 1.4624153699734 57.7775131183454 11.0552560876337 -81.3380482352453 2787766.90404082 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:45:39 2020-Jun-23 15:45
2111-Oct-23 07:43 00:02 Jupiter 1.81909083297072 1.81909030143913 1.81909136450252 2.01087057757366 1.7641828995208 2492381.821619372 1.68583096454193 85.8163549924804 9.08468495786116 -89.9707986643707 2526858.89967572 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:45:39 2020-Jun-23 15:45
2122-Sep-12 10:39 00:02 Jupiter 1.72345347454454 1.7234531061941 1.72345384289488 1.75641274517921 1.44984461317156 2496358.943784156 1.93918420568391 113.426152661647 26.7687988861155 -84.7086830801493 2735191.8220171 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:45:39 2020-Jun-23 15:45
2133-Aug-01 00:29 00:02 Jupiter 1.74978576072988 1.74978529354117 1.74978622791888 2.02029447970489 1.76449582878247 2500334.520316494 2.27515832306168 90.7976678832161 10.9825818825457 -80.4799375526 2789926.86711829 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:45:39 2020-Jun-23 15:45
2144-Jun-03 12:50 00:03 Jupiter 1.88880245614322 1.88880164562787 1.88880326665825 2.85868382224572 2.69725504645181 2504294.034818515 2.61926930391913 40.0825365702649 17.1630380652706 78.0044312117172 1449402.58445221 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:45:39 2020-Jun-23 15:45

Alternate Designations
 1981 EC1 = 1955 SN2 = 1955 UJ = 1955 VG = 1972 TH9 = 1976 JM1 = 1978 UM2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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