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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
590 Tomyris (A906 ED)
Classification: Main-belt Asteroid          SPK-ID: 2000590
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08032914384593723 3.9087e-08  
a 2.999727203515068 1.4219e-08 au
q 2.758761685485335 1.2143e-07 au
i 11.1729321565699 4.2797e-06 deg
node 106.1429038421822 2.3771e-05 deg
peri 339.3127745951682 3.7527e-05 deg
M 356.8041551751684 2.8657e-05 deg
tp 2458617.346289215438
(2019-May-13.84628922)
0.00015107 TDB
period 1897.67164864689
5.20
1.3493e-05
3.694e-08
d
yr
n .1897061592592656 1.3489e-09 deg/d
Q 3.240692721544801 1.5362e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2210  
   data-arc span      41513 days (113.66 yr)  
   first obs. used      1906-03-05  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46397  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:55:04  

Additional Information
 Earth MOID = 1.77818 au 
 Jupiter MOID = 1.9357 au 
 T_jup = 3.220 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456089.5 (2012-Jun-11.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07885514999781625 3.9406e-08  
q 2.761887954199817 1.22e-07 au
tp 2456730.431870952586
(2014-Mar-13.93187095)
0.00015236 TDB
node 106.1998333473296 2.3741e-05 deg
peri 341.2997309915895 3.7764e-05 deg
i 11.18014440643775 4.283e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2210  
   data-arc span      41513 days (113.66 yr)  
   first obs. used      1906-03-05  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46397  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:55:04  

Additional Information
 Jupiter MOID = 1.9357 au 
 T_jup = 3.220 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.55284676023276E-15 -4.781964002862899E-15 -3.105079488166917E-13 -4.660301328074851E-15 -4.883058494368E-14 -1.861107401861304E-15
q -4.781964002862899E-15 1.488481535612903E-14 8.914217807915303E-13 1.578494680356688E-14 1.23012994084375E-13 6.265385580817776E-15
tp -3.105079488166917E-13 8.914217807915303E-13 2.321347455130153E-8 4.52440315609781E-12 4.502016629321801E-9 -4.60181274293569E-13
node -4.660301328074851E-15 1.578494680356688E-14 4.52440315609781E-12 5.636467406622811E-10 -5.516211961576286E-10 -1.640802947613085E-12
peri -4.883058494368E-14 1.23012994084375E-13 4.502016629321801E-9 -5.516211961576286E-10 1.426114570650325E-9 1.475241049575968E-12
i -1.861107401861304E-15 6.265385580817776E-15 -4.60181274293569E-13 -1.640802947613085E-12 1.475241049575968E-12 1.834369537536162E-11

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 9.90   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 8
diameter diameter 30.577 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.562 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Binzel, R.P. (1987) Icarus 72, 135-208.]
[Addleman, D.; Covele, B.; Duncan, A.; Johnson, J.; et al. (2005) Minor Planet Bull. 32, 76-78.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2016) Astron. Astrophys., submitted.]
[Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2018) Icarus 299, 84-96.]
geometric albedo albedo 0.187   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.817   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=11.80, mean=13.49, max.=17.67) deg.
U-B UB 0.410   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=11.80, mean=13.49, max.=17.67) deg.

590 Tomyris (A906 ED)          Discovered 1906-Mar-04 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A906 ED = 1954 ME = 1955 SJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin