Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
211 Isolda (A879 XA)
Classification: Main-belt Asteroid          SPK-ID: 2000211
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 103 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1601537395449971 3.5123e-08  
a 3.041964853685142 9.1909e-09 au
q 2.554782806803016 1.0694e-07 au
i 3.885968349058265 3.9747e-06 deg
node 263.6303920047057 6.1317e-05 deg
peri 173.390249118703 6.2643e-05 deg
M 160.4226935085055 1.3492e-05 deg
tp 2458136.939005144591
(2018-Jan-18.43900514)
7.1315e-05 TDB
period 1937.89264691198
5.31
8.7827e-06
2.405e-08
d
yr
n .185768804362645 8.4192e-10 deg/d
Q 3.529146900567267 1.0663e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2883  
   data-arc span      51377 days (140.66 yr)  
   first obs. used      1880-02-01  
   last obs. used      2020-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:32:12  

Additional Information
 Earth MOID = 1.57021 au 
 Jupiter MOID = 1.73114 au 
 T_jup = 3.217 
[ 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 8.0   n/a MPO473763 IRAS observations used: 58
magnitude slope G 0.12   n/a PDS3 (MPC 17258) Fit
diameter diameter 141.125 km 2.486 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 18.365 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.062   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.711   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=3.43, mean=6.84, max.=18.45) deg.
U-B UB 0.364   0.031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=3.43, mean=6.84, max.=18.45) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
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)

211 Isolda (A879 XA)          Discovered 1879-Dec-10 by Palisa, J. at Pola
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
1925-Oct-14 05:14 00:01 Jupiter 1.77356857048271 1.77356811860663 1.7735690223586 2.31140655513816 2.09462130613263 2424437.717790907 1.28163419554737 68.1916571339089 13.9613076518981 85.6673316520413 2567798.90755764 T 103 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:20 2020-Nov-13 04:32
1973-Dec-25 15:16 < 00:01 Jupiter 1.87213360747959 1.87213314778865 1.87213406717042 2.72227007063122 2.55066272455191 2442042.135876811 0.584003398307608 52.5116296335267 14.0802771517585 89.93725468197 2890115.91514235 T 103 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:20 2020-Nov-13 04:32
1983-May-13 19:57 < 00:01 Jupiter 1.86661887845978 1.86661849257017 1.86661926434928 2.28775998711271 2.07997557692189 2445468.331226042 0.443482057599542 47.9765613849494 13.3362519910123 79.4808346737742 2887577.25734472 T 103 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:20 2020-Nov-13 04:32
2031-Jul-19 00:39 < 00:01 Jupiter 1.75634632521079 1.75634597862733 1.75634667179414 2.14671189303591 1.90888555244516 2463066.527172148 0.360711803206342 61.6731443032218 16.3882743455421 78.8350474455158 2902530.81763029 T 103 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:20 2020-Nov-13 04:32
2079-Sep-22 10:38 00:01 Jupiter 1.7326665066561 1.73266617891686 1.73266683439524 2.14710284182541 1.9058700923197 2480663.943297714 1.06033752757364 71.7260878435584 16.9472008846915 82.4554827624388 3100949.00497192 T 103 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:20 2020-Nov-13 04:32
2127-Dec-03 03:38 00:02 Jupiter 1.79739653856965 1.79739595252399 1.79739712461542 2.36891022001348 2.16084157250033 2498266.651278497 1.82936411478773 85.6529212793367 13.4239303182243 86.533225709922 2332159.18582152 T 103 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:20 2020-Nov-13 04:32
2137-Apr-22 20:49 00:02 Jupiter 1.94400637005217 1.94400538680029 1.94400735330471 2.49019955129923 2.30860874107541 2501695.367034340 1.90382100094995 88.401601280311 14.5536364940274 70.0152896387981 2499232.01603276 T 103 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:20 2020-Nov-13 04:32
2176-Feb-16 08:39 00:03 Jupiter 1.9287764307742 1.92877541202016 1.9287774495301 2.99539189154399 2.84500829962015 2515873.860463983 2.52612141221513 126.604549118989 17.7502041481558 78.9723975024305 2695123.95599448 T 103 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:20 2020-Nov-13 04:32
2185-Jun-27 16:51 00:03 Jupiter 1.80155687971235 1.80155594796087 1.80155781146506 2.22595256994768 2.00363220960686 2519293.202207563 2.62688849043297 112.381797590566 15.1321678166529 75.9961677924191 2255009.04162491 T 103 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:20 2020-Nov-13 04:32

Alternate Designations
 A879 XA = 1950 FM = A912 AB = A912 BA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-29 06:00 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin