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 ]  
90 Antiope (A866 TA)
Classification: Main-belt Asteroid          SPK-ID: 2000090
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 110 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1666639148945053 2.026e-08  
a 3.147958148384016 7.7293e-09 au
q 2.623307119450278 6.7145e-08 au
i 2.206812046201421 3.6446e-07 deg
node 69.95409045438126 1.239e-05 deg
peri 245.0214715887575 1.1684e-05 deg
M 250.8444771588299 3.689e-06 deg
tp 2459819.064604343029
(2022-Aug-27.56460434)
2.1739e-05 TDB
period 2040.054884694311
5.59
7.5136e-06
2.057e-08
d
yr
n .1764658405521005 6.4993e-10 deg/d
Q 3.672609177317754 9.0175e-09 au
  Orbit Determination Parameters
   # obs. used (total)      4630  
   data-arc span      56421 days (154.47 yr)  
   first obs. used      1866-10-01  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41459  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:50:19  

Additional Information
 Earth MOID = 1.60855 au 
 Jupiter MOID = 1.62137 au 
 T_jup = 3.186 
[ 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 8.20   n/a E2021B10 IRAS observations used: 3
diameter diameter 115.974 km 1.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 16.509 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Hansen, A.T.; Arentoft, T.; Lang, K. (1997) Minor Planet Bull. 24, 17.]
[Michalowski, T.; Colas, F.; Kwiatkowski, T.; Kryszczynska, A.; et al. (2001) Astron. Astrophys. 378, L14-L16.]
[Michalowski, T.; Colas, F.; Kwiatkowski, T.; Kryszczynska, A.; et al. (2002) Astron. Astrophys. 396, 293-299; (2001) IAUC 7757.]
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Descamps, P.; et al. (2005) Abstr. IAU Symp. 229, p. 87; also http://portail.imcce.fr/page.php?nav=en/observateur/campagnes_obs/a ntiope]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Descamps, P.; Marchis, F.; Michalowski, T.; Vachier, F.; et al. (2007) Icarus 187, 482-499.]
[Descamps, P.; Marchis, F.; Micalowski, T.; Berthier, J.; et al. (2009) Icarus 203, 102-111.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Bartczak, P.; Michalowski, T.; Santana-Ros, T.; Dudzinski, G. (2014) Mon. Not. Royal Ast. Soc. 443, 1802-1809.]
geometric albedo albedo 0.058   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.688   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=8.58, mean=12.61, max.=16.29) deg.
U-B UB 0.317   0.047 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=8.58, mean=12.61, max.=16.29) 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 C   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)

90 Antiope (A866 TA)          Discovered 1866-Oct-01 by Luther, R. at Dusseldorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A866 TA = 1952 BK2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-17 22:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin