(1139) Atami
compiled by Wm. Robert Johnston
last updated 14 October 2006
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: |
(20 km?)
| |
semimajor axis/primary radius a/Rp: |
(6?)
| |
orbital period P: |
0.7 d? [MGd]
27.45 h [C430]
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
7 km [DD]
6 km [C430]
| |
absolute magnitude H: |
12.51 [JPL]
| |
rotation period: |
?
| |
amplitude delta M: |
?
| |
color index B-V: |
0.92 [JPL]
| |
color index V-R: |
?
| |
color index R-I: |
?
| |
slope parameter G: |
(0.15) [a]
| |
geometric albedo: |
?
| |
mass: |
?
| |
density: |
?
| |
type: |
?
|
other data, secondary:
|
diameter: |
7 km [DD]
5 km [C430]
| |
diameter ratio Ds/Dp: |
(1.0)
| |
component magnitude difference: |
(0.0)
| |
rotation period: |
?
|
|
--(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 by Wm. Robert Johnston.
Last modified 14 October 2006.
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