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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 108 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02960704518401135 3.5024e-08  
a 3.413318794743975 1.6089e-08 au
q 3.312260510960555 1.1684e-07 au
i 6.689400873109722 4.2426e-06 deg
node 242.6418830534602 3.5184e-05 deg
peri 235.4154946457672 8.7106e-05 deg
M 79.19033948925167 7.8047e-05 deg
tp 2458493.820411635452
(2019-Jan-10.32041164)
0.00050034 TDB
period 2303.369994214946
6.31
1.6286e-05
4.459e-08
d
yr
n .1562927366876194 1.1051e-09 deg/d
Q 3.514377078527395 1.6566e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3458  
   data-arc span      43881 days (120.14 yr)  
   first obs. used      1900-04-26  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36674  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:13:32  

Additional Information
 Earth MOID = 2.33479 au 
 Jupiter MOID = 1.5862 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 8.4   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-August); 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 23:56 00:03 Jupiter 1.61068807329268 1.61068763743335 1.6106885091521 2.57859721670067 2.36588486942264 2415797.497112270 2.58829918441735 78.8643624536207 20.7504448351381 88.1512422497678 2383420.03681781 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
1915-Nov-02 19:06 00:02 Jupiter 1.58986131220798 1.58986083824367 1.5898617861721 2.32735387983385 2.08591610911979 2420804.295616106 2.37810406896459 104.847643502702 13.7333403972057 -76.9174346332747 2296554.08823026 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
1929-Jun-12 03:07 00:02 Jupiter 1.65201905978308 1.65201850361293 1.65201961595409 3.45039703684094 3.29845426754397 2425774.629834029 1.81198108382132 108.280073366176 19.1768862279565 83.5797077476773 3201043.65417982 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
1942-Dec-09 19:50 00:01 Jupiter 1.88892435499911 1.88892378287985 1.88892492711836 3.7755014345318 3.65480239568698 2430703.326096807 1.49164706395528 56.5979214082448 25.891040562813 80.215588808865 4187796.64364391 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
1983-May-16 03:58 < 00:01 Jupiter 1.79751227842545 1.79751181932823 1.79751273752278 3.36077449748474 3.21750937534133 2445470.664943883 0.673991588735376 57.2498619173589 17.5225304727759 82.0662446959169 3223008.82822593 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
1996-Nov-18 00:12 < 00:01 Jupiter 1.6352165564973 1.63521611324272 1.63521699975189 2.6553296613214 2.45250884944303 2450405.508286998 0.447918546678707 71.6596536555792 17.6283533578009 -89.6037131691211 3098745.32058562 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
2010-Aug-02 12:14 < 00:01 Jupiter 1.57875853077512 1.57875805953078 1.57875900201938 2.24316038020633 1.98965951209087 2455411.009855382 0.305674581447046 45.0982995841341 14.1405602874275 -76.1324621091784 2571203.76334405 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
2024-Mar-18 15:44 < 00:01 Jupiter 1.62993762339818 1.62993717532337 1.629938071473 3.36806357085261 3.21006557781756 2460388.155261602 0.391788411015624 46.3211183739321 18.3130338760874 89.6182656766619 3085167.73642544 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
2037-Sep-17 17:43 < 00:01 Jupiter 1.86878277099475 1.86878228176747 1.86878326022202 3.72288259010698 3.59907742134443 2465319.238196613 0.621402592989554 53.9488405988264 21.2705743168566 84.6993264236812 3883825.97303233 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
2078-Feb-20 03:27 00:01 Jupiter 1.82300998675134 1.82300936805962 1.82301060544358 3.43479840334033 3.29675339383182 2480084.643678817 1.40375614739236 86.0275137093646 18.3831719002811 76.566419217672 3158482.99482272 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
2091-Aug-24 11:20 00:02 Jupiter 1.6493050062144 1.64930444878385 1.64930556364487 2.70409489167603 2.50699074396565 2485017.972443989 1.85778992161822 70.5603391796743 17.4665800519827 89.8194348352264 1935826.56103702 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
2105-May-05 01:00 00:02 Jupiter 1.58160675800187 1.58160624481065 1.5816072711938 2.20387026758991 1.94575255034714 2490019.541373594 2.39018427868274 104.634898594208 13.6006046311173 -73.5593081617624 2611093.26324964 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
2118-Dec-22 12:17 00:02 Jupiter 1.60090895577511 1.60090837578823 1.60090953576409 3.26585967645676 3.09962294950576 2494999.011611098 2.45142116758653 151.333665210837 18.1832789330672 85.5524913517915 2968266.75651471 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
2132-Jun-27 05:31 00:03 Jupiter 1.84454363302238 1.84454260683173 1.84454465921313 3.65724701603121 3.52945420367078 2499934.729607638 2.68077233924261 68.8988765159366 37.0491492929105 56.1351752646071 3350795.29231565 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
2172-Nov-28 09:31 00:03 Jupiter 1.85016028043549 1.85015928399395 1.85016127688229 3.51442614804677 3.38165203127055 2514698.896462308 3.38871485246333 185.169907470135 18.3201282022397 77.1866980634839 3295869.83977527 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
2186-May-26 21:08 00:04 Jupiter 1.67339889370275 1.67339806831808 1.67339971908751 2.7857147203649 2.59766600185952 2519626.380412172 4.00128956401685 89.7307194592392 18.7542955604218 85.8848976357349 1441041.50386887 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
2200-Feb-04 06:53 00:05 Jupiter 1.57413084182128 1.57413017589944 1.57413150774804 2.14696644220239 1.87970393196476 2524627.787143884 4.77309253970534 192.390857591141 13.9891870153671 -73.1314668756526 2645218.51784986 T 108 CATAB v2.0f-lin.ifort 2020-Jun-23 15:13:55 2020-Jun-23 15:14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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