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JPL Small-Body Database Browser
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187 Lamberta
Classification: Main-belt Asteroid          SPK-ID: 2000187
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 90 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2412956175936222 3.3855e-08  
a 2.727125382078189 7.7894e-09 au
q 2.069081978754389 9.0928e-08 au
i 10.58457663827469 3.337e-06 deg
node 21.69147863326249 1.7231e-05 deg
peri 196.8222874160737 1.8446e-05 deg
M 163.9267711861075 8.2465e-06 deg
tp 2458251.462658220544
(2018-May-12.96265822)
3.6565e-05 TDB
period 1644.962815344323
4.50
7.0477e-06
1.93e-08
d
yr
n .2188499318293981 9.3764e-10 deg/d
Q 3.385168785401989 9.6689e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2773  
   data-arc span      42864 days (117.36 yr)  
   first obs. used      1902-09-26  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45652  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:20:15  

Additional Information
 Earth MOID = 1.0647 au 
 Jupiter MOID = 1.60342 au 
 T_jup = 3.289 
[ 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 8.3   n/a MPO502154 IRAS observations used: 12
diameter diameter 147.294 km 1.389 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 10.670 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Hainaut-Rouelle, M.-C.; Hainaut, O.R.; Detal, A. (1995) Astron. Astrophys. Suppl. Ser. 112, 125-142.]
[Harris, A.W.; Young, J.W.; Bowell, E.; Tholen, D.J. (1999) Icarus 142, 173-201.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J. (2006) IAU 2006, poster paper.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.044   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.709   0.027 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=4.94, mean=11.39, max.=19.79) deg.
U-B UB 0.348   0.024 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=4.94, mean=11.39, max.=19.79) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

187 Lamberta          Discovered 1878-Apr-11 by Coggia, J. at Marseille
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
1916-Jul-31 23:30 00:01 Jupiter 1.59825515087707 1.59825487172098 1.59825543003315 2.6029920929459 2.39073917451695 2421076.478977010 1.06878621374507 196.981019486459 15.4666362961358 -87.4244528287382 3282021.89394673 T 90 CATAB v2.0f-lin.ifort 2020-Feb-22 15:20:33 2020-Feb-22 15:20
1953-Jan-31 04:55 < 00:01 Jupiter 1.75346489712872 1.75346419856618 1.75346559572852 2.19426418066384 1.96180590500514 2434408.704816078 0.736947843655193 494.557325757124 20.1534895494169 -85.0877582542451 2675019.79608207 T 90 CATAB v2.0f-lin.ifort 2020-Feb-22 15:20:33 2020-Feb-22 15:20
2011-Mar-30 12:02 < 00:01 Jupiter 1.6442282292916 1.64422791159305 1.64422854699044 2.65163121469104 2.44966326536193 2455651.001235417 0.133132762598366 153.644037145419 13.3064611854566 -85.2692848036288 3492115.42613653 T 90 CATAB v2.0f-lin.ifort 2020-Feb-22 15:20:33 2020-Feb-22 15:20
2047-Sep-23 16:09 < 00:01 Jupiter 1.66013384601229 1.66013348696038 1.66013420506816 2.29724041356567 2.06322241643243 2468977.172793151 0.509983456622651 250.277941630489 18.6708802496008 -84.7310667180768 2914936.98200957 T 90 CATAB v2.0f-lin.ifort 2020-Feb-22 15:20:33 2020-Feb-22 15:20
2105-Nov-21 11:21 00:01 Jupiter 1.74438294731643 1.74438192377383 1.74438397089385 2.73528120251573 2.55159173931857 2490219.972645039 1.23335884815197 486.932235455891 31.5471723182877 86.0293491041463 3825671.57447225 T 90 CATAB v2.0f-lin.ifort 2020-Feb-22 15:20:33 2020-Feb-22 15:20
2142-May-21 19:58 00:02 Jupiter 1.61117209707279 1.61117170728559 1.61117248686841 2.38458340381244 2.15285893258544 2503550.331941200 1.57260040343191 284.46102654244 15.4573116657542 -83.6293113628342 3098606.99731087 T 90 CATAB v2.0f-lin.ifort 2020-Feb-22 15:20:33 2020-Feb-22 15:20
2178-Dec-17 03:32 00:02 Jupiter 1.92017433338522 1.92017237746401 1.92017628939516 1.73994949213116 1.46464644889845 2516908.646879594 2.40508037041858 732.364307785592 52.4015314279368 -78.6960127737084 2350419.43529523 T 90 CATAB v2.0f-lin.ifort 2020-Feb-22 15:20:33 2020-Feb-22 15:20
2200-Jul-13 00:56 00:02 Jupiter 1.85803457806866 1.85803237531154 1.85803678223314 2.87184025970628 2.70845457082086 2524786.538644534 2.46901667707125 2720.12767610712 17.8914561140068 87.9962924030987 2330277.92370684 T 90 CATAB v2.0f-lin.ifort 2020-Feb-22 15:20:33 2020-Feb-22 15:20

Alternate Designations
 1946 LB = 1948 XR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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