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420 Bertholda (A896 RC)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000420
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 111 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02949607820498448 3.4761e-08  
a 3.412838392496918 1.5897e-08 au
q 3.312173044370855 1.1559e-07 au
i 6.68975287117539 4.2276e-06 deg
node 242.6399293991448 3.49e-05 deg
peri 235.1242056829923 8.7221e-05 deg
M 110.7599648118877 7.827e-05 deg
tp 2458491.979662631940
(2019-Jan-08.47966263)
0.00050202 TDB
period 2302.883734982242
6.30
1.609e-05
4.405e-08
d
yr
n .1563257382608488 1.0922e-09 deg/d
Q 3.51350374062298 1.6365e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3552  
   data-arc span      44094 days (120.72 yr)  
   first obs. used      1900-04-26  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36374  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:03:34  

Additional Information
 Earth MOID = 2.33457 au 
 Jupiter MOID = 1.58616 au 
 T_jup = 3.133 
[ 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 8.36   n/a E2021B10  
diameter diameter 138.699 km 3.446 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.04 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Zappala, V.; Di Martino, M.; Cellino, A.; Farinella, P.; et al. (1989) Icarus 82, 354-368.]
[Lagerkvist, C.-I.; Erikson, A.; Lahulla, F.; Di Martino, M.; et al. (2001) Icarus 149, 190-197.]
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.044   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.691   0.018 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=4.23, mean=5.51, max.=6.93) deg.
U-B UB 0.229   0.038 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=4.23, mean=5.51, max.=6.93) deg.
Tholen spectral type spec_T P   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

420 Bertholda (A896 RC)          Discovered 1896-Sep-07 by Wolf, M. at Heidelberg
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-Feb-16 23:56 00:03 Jupiter 1.61068806788777 1.61068763558443 1.61068850019121 2.57859723098188 2.36588488424197 2415797.497118670 2.57867177284488 78.4593235347377 20.6964581094104 88.2649141408033 2414538.43137307 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
1915-Nov-02 19:06 00:02 Jupiter 1.58986131441618 1.58986084252197 1.58986178631022 2.32735387650611 2.08591610576163 2420804.295626425 2.36845686797969 104.398887585828 13.6265644809981 -76.9555866253394 2299372.00265563 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
1929-Jun-12 03:07 00:02 Jupiter 1.65201906549654 1.6520185121216 1.65201961887224 3.45039710138538 3.29845433559923 2425774.629852804 1.80452310254985 107.751285431056 19.1268734031885 83.61131570952 3216005.64760033 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
1942-Dec-09 19:50 00:01 Jupiter 1.88892436093836 1.88892379491165 1.88892492696517 3.77550147080531 3.6548024335442 2430703.326104864 1.48602388445303 56.524573117403 25.586156700839 80.1810594333801 4231225.74482197 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
1983-May-16 03:58 < 00:01 Jupiter 1.79751227655191 1.79751181834986 1.79751273475396 3.36077450008468 3.2175093779044 2445470.664947409 0.672962059062691 57.0873278418822 17.4821892554497 82.0398445990332 3231815.38064959 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
1996-Nov-18 00:12 < 00:01 Jupiter 1.63521655229738 1.63521611088844 1.63521699370632 2.65532967462073 2.45250886329973 2450405.508287170 0.447533886533745 71.3175945588175 17.524867287046 -89.4553305022624 3122946.29523031 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
2010-Aug-02 12:14 < 00:01 Jupiter 1.57875853246187 1.57875806352138 1.57875900140226 2.24316036990229 1.98965950076209 2455411.009857861 0.305518357497109 44.9119099595357 14.0261591670173 -76.3545908893812 2577278.89444734 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
2024-Mar-18 15:44 < 00:01 Jupiter 1.62993762582953 1.62993717823928 1.62993807341978 3.36806356133239 3.21006556807024 2460388.155254584 0.390436512908869 46.0299693529034 18.2977903031282 89.5462525966514 3097760.12899316 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
2037-Sep-17 17:43 < 00:01 Jupiter 1.86878277185737 1.86878228328245 1.8687832604323 3.72288262825149 3.59907746085922 2465319.238187667 0.618415676291101 53.8627813431327 21.2274074536244 84.6143768841404 3905790.62567707 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
2078-Feb-20 03:27 00:01 Jupiter 1.82300999017081 1.82300937235007 1.82301060799207 3.4347984211783 3.29675341268107 2480084.643668447 1.3954928710952 85.53323191654 18.3358444614591 76.4978258047648 3160859.56982512 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
2091-Aug-24 11:20 00:02 Jupiter 1.64930500433755 1.64930444713321 1.64930556154169 2.70409491297276 2.50699076670365 2485017.972434402 1.8480957268394 70.3019872744862 17.369909063218 89.9263044191711 1939441.5143895 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
2105-May-05 01:00 00:02 Jupiter 1.58160676023954 1.58160624882357 1.58160727165624 2.2038702502106 1.94575253105175 2490019.541366417 2.37937063510129 104.146594360761 13.5029427347548 -73.6079174308379 2626838.54761258 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
2118-Dec-22 12:17 00:02 Jupiter 1.6009089546217 1.60090837563956 1.60090953360593 3.26585969158136 3.09962296531853 2494999.011602843 2.4407259683111 150.67757416639 18.1603111660584 85.5372564328781 2980069.60856681 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
2132-Jun-27 05:31 00:03 Jupiter 1.8445436277291 1.84454260248934 1.84454465296907 3.6572470517399 3.52945424029903 2499934.729594453 2.66882411203865 68.7171709663534 37.0000620738832 56.0661468057627 3360055.82496413 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
2172-Nov-28 09:31 00:03 Jupiter 1.85016028826176 1.85015929513873 1.85016128139005 3.51442617797401 3.38165206294549 2514698.896437602 3.37180627071996 184.219296643231 18.2768225750191 77.1685369122191 3297863.33763934 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
2186-May-26 21:08 00:04 Jupiter 1.67339889519807 1.67339807020149 1.67339972019464 2.78571476432289 2.59766604917381 2519626.380389504 3.98214769345597 89.463143082619 18.7071181510272 85.9005835630268 1446257.60278487 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
2200-Feb-04 06:53 00:05 Jupiter 1.57413084593154 1.57413018114214 1.57413151072586 2.14696639544391 1.87970387930547 2524627.787115203 4.75177142397316 191.498629010216 13.884733110813 -73.1563354024499 2664121.92059974 T 111 CATAB v2.0f-lin.ifort 2021-Feb-24 19:03:44 2021-Feb-24 19:03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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