(1139) Atami
compiled by Wm. Robert Johnston
last updated 9 December 2009
Orbital elements and other data (Assumed or derived values in parenthesis, my estimates in italics and parenthesis. Source identifications in brackets, see this link for sources):
orbital data, primary (osculating elements) [JPL]:
|
semimajor axis a: |
1.9474175 AU
| |
orbital period P: |
2.7177 y (=992.7 d)
| |
eccentricity e: |
0.2556549
| |
perihelion distance q: |
1.4495507 AU
| |
aphelion distance Q: |
2.44528433 AU
| |
inclination i: |
13.09186°
| |
argument of perihelion omega: |
206.3879°
| |
ascending node OMEGA: |
213.43611°
| |
mean anomaly M: |
315.39545°
| |
perihelion passage TP: |
2005-12-18.9882681
| |
Epoch: |
18 AUG 2005
| |
data arc: |
1929-1999 (170 obs.)
| orbital data, secondary:
|
semimajor axis a: |
15 km separation [C430]
| |
semimajor axis/primary radius a/Rp: |
(6?)
| |
orbital period P: |
27.45 h [C430]
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
6 km [C430]
| |
absolute magnitude H: |
12.51 [JPL]
| |
rotation period: |
27.45 h [C430]
| |
amplitude delta M: |
?
| |
color index B-V: |
0.92 [JPL]
| |
color index V-R: |
?
| |
color index R-I: |
?
| |
slope parameter G: |
(0.15) assumed
| |
geometric albedo: |
?
| |
mass: |
?
| |
density: |
?
| |
type: |
?
|
other data, secondary:
|
diameter: |
5 km [C430]
| |
diameter ratio Ds/Dp: |
(0.9)
| |
component magnitude difference: |
| |
rotation period: |
27.45 h [C430]
|
|
--(1139) Atami--discovery and notes:
Discovered 1 December 1929 from Toyko by O. Oikawa and K. Kubokawa. Additional designation 1929 XE.
Secondary identified based on lightcurve observations by Federico Manzini, Roberto Crippa, Rene Roy, Raoul Behrend; reported 1 September 2005.
See more information and links at
Asteroid/Comet Connection Catchall Catalog page
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Bus, S. & Binzel, R. P. 2004, NASA Planetary Data System,
EAR-A-I0028-4-SBN0001/SMASSII-V1.0:1139ATAMI01 1139 Atami CCD Spectrum
- Lupishko, D. F., Velichko, F. P., & Shevchenko, V. G. 1989, JPRS Report Science Technology USSR Space Photometry of AMOR Asteroids 1036 Ganymede and 1139 Atami
- Lupishko, D. F., Velichko, F. P., & Shevchenko, V. G. 1988,
Astronomicheskii Vestnik Photometry of the AMOR type asteroids 1036 Ganymede and 1139 Atami
- Herglotz, H. K. & McCarter, J. W. 1969, Astronomical Journal Observed Positions of Minor Planets: Atami (1139), Holmia (378), Bavaria (301), and 1931 TTI (1624)
- de La Villemarqué, E. 1930, Astronomische Nachrichten Petite Planète 1139
[1929 XE] (Tokyo 19)
© 2005-2006, 2008 by Wm. Robert Johnston.
Last modified 9 December 2009.
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