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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 103 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02997701448916702 4.012e-08  
a 3.414893437438141 1.7446e-08 au
q 3.312525127385097 1.3797e-07 au
i 6.689238371390287 4.6935e-06 deg
node 242.647398547773 3.7012e-05 deg
peri 235.9634002304073 8.7072e-05 deg
M 16.13085816713975 7.7539e-05 deg
tp 2458497.219309534523
(2019-Jan-13.71930953)
0.00049663 TDB
period 2304.964074590494
6.31
1.7663e-05
4.836e-08
d
yr
n .1561846468535344 1.1968e-09 deg/d
Q 3.517261747491186 1.7969e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3038  
   data-arc span      43679 days (119.59 yr)  
   first obs. used      1900-04-26  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38727  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:07:00  

Additional Information
 Earth MOID = 2.33538 au 
 Jupiter MOID = 1.58475 au 
 T_jup = 3.132 
[ 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 8.4   n/a MPO384747  
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. 2019-January); 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]
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 23:55 00:03 Jupiter 1.61068821486562 1.61068771110454 1.6106887186267 2.57859793576257 2.36588567267107 2415797.496841840 2.79688561401345 88.4351094637111 20.9119873702138 87.4007760993519 1939733.88592781 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
1915-Nov-02 19:05 00:03 Jupiter 1.58986132955556 1.58986082601383 1.5898618330971 2.32735374994114 2.08591596697932 2420804.295379777 2.58342440694082 115.053625868652 14.3997586164251 -76.5796264611049 2242817.95567957 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
1929-Jun-12 03:07 00:02 Jupiter 1.65201892723905 1.6520182974264 1.65201955705291 3.45039666013153 3.29845386101012 2425774.629654829 1.96714181753238 117.845727031399 20.1743654084347 82.3613089462339 2921088.34421932 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
1942-Dec-09 19:49 00:02 Jupiter 1.88892421265394 1.88892352246704 1.88892490284083 3.77550094316505 3.65480187884715 2430703.325954331 1.60707234616859 60.2408935539674 31.5426999535443 81.1970556940164 3519203.87300387 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
1983-May-16 03:57 < 00:01 Jupiter 1.79751235031626 1.7975118599138 1.79751284071871 3.36077489362134 3.21750979497399 2445470.664907268 0.700708864726775 58.5250434423625 18.5231431963535 81.3050298619289 2973757.32257548 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
1996-Nov-18 00:12 < 00:01 Jupiter 1.63521667419404 1.63521619077256 1.63521715761542 2.65532995723181 2.45250918502693 2450405.508284957 0.460506570643297 80.3751495941968 18.4243152360175 88.8971575040993 2722231.60468725 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
2010-Aug-02 12:14 < 00:01 Jupiter 1.57875856488336 1.57875805984521 1.57875906992151 2.24316074501571 1.98965992920595 2455411.009897295 0.306122138085961 49.8740656846429 14.776761588359 -73.8149130641348 2535624.55091196 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
2024-Mar-18 15:44 < 00:01 Jupiter 1.62993756781443 1.6299371070353 1.62993802859348 3.3680635366715 3.21006553643346 2460388.155313710 0.417272227001022 48.4953326216431 18.7904569467366 -89.78057031044 2863953.98964529 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
2037-Sep-17 17:43 < 00:01 Jupiter 1.86878273067893 1.8687822262071 1.86878323515076 3.72288209112951 3.59907690248574 2465319.238287380 0.68369676684165 57.8367813699105 21.9592597529873 86.3442914518795 3498810.7822751 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
2078-Feb-20 03:27 00:02 Jupiter 1.8230099566007 1.82300933175163 1.8230105814505 3.43479858702292 3.29675358287483 2480084.643883429 1.56224028677022 93.9102452176866 18.9965418103148 77.7631593802122 3039261.94424179 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
2091-Aug-24 11:21 00:02 Jupiter 1.64930507978265 1.64930451511337 1.64930564445174 2.70409478102008 2.5069906337473 2485017.972695740 2.04552240266757 77.6883456138541 18.3813801802753 88.8269615104359 1888232.9820309 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
2105-May-05 01:00 00:03 Jupiter 1.58160678563396 1.58160624274593 1.5816073285227 2.20387096447553 1.94575334448814 2490019.541688056 2.60436811357116 114.318325865776 14.1577734942529 -72.9675615149369 2433822.20208253 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
2118-Dec-22 12:17 00:03 Jupiter 1.60090896962259 1.60090838336263 1.60090955588492 3.26586002776142 3.09962332112781 2494999.011905392 2.66857625127082 163.393032256334 18.4048320162004 85.9465080171683 2759875.94409826 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
2132-Jun-27 05:31 00:03 Jupiter 1.84454371101247 1.84454266775405 1.84454475427109 3.65724655701024 3.52945373353088 2499934.729935377 2.92701764806987 73.8401215553096 38.6010657072451 59.0374446587716 3187133.01552506 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
2172-Nov-28 09:32 00:04 Jupiter 1.85016015690009 1.85015911217028 1.85016120163642 3.51442615224977 3.3816520265992 2514698.896893101 3.7265898645651 203.235477464888 18.8756439230686 77.6597400381862 3185996.10629495 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
2186-May-26 21:09 00:04 Jupiter 1.67339890185096 1.67339807045269 1.67339973324923 2.78571415620672 2.59766539780992 2519626.380920602 4.38351466976995 96.4602123948762 19.1839568924588 86.1998888595452 1340085.41838025 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
2200-Feb-04 06:54 00:05 Jupiter 1.57413084128134 1.57413015056926 1.5741315319987 2.146967382904 1.87970500632016 2524627.787747683 5.20222390190597 210.086186287793 14.6651797037155 -72.7913336088841 2423694.79449312 T 103 CATAB v2.0f-lin.ifort 2019-Dec-03 20:07:14 2019-Dec-03 20:07
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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