Back 139 اتامى (كويكب) ARZ (1139) Атами CE (1139) Atami German 1139 Ατάμι Greek 1139 Atami Esperanto (1139) Atami Spanish 1139 Atami Basque آتامی ۱۱۳۹ Persian (1139) Atami French 1139 Atami Hungarian
| Discovery[1] | |
|---|---|
| Discovered by | O. Oikawa K. Kubokawa |
| Discovery site | Tokyo Astronomical Obs. (389) |
| Discovery date | 1 December 1929 |
| Designations | |
| (1139) Atami | |
| Pronunciation | Japanese: [atami] |
Named after | Atami (Japanese city)[2] |
| 1929 XE | |
| Mars-crosser[1][3][4] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 87.50 yr (31,960 days) |
| Aphelion | 2.4451 AU |
| Perihelion | 1.4505 AU |
| 1.9478 AU | |
| Eccentricity | 0.2553 |
| 2.72 yr (993 days) | |
| 110.80° | |
| 0° 21m 45.36s / day | |
| Inclination | 13.087° |
| 213.35° | |
| 206.62° | |
| Known satellites | 1[5] |
| Earth MOID | 0.4722 AU · 184 LD |
| Mars MOID | 0.0298 AU |
| Physical characteristics | |
| Dimensions | 8.24±0.82 km[6] 9.35 km (calculated)[4] |
| 15 h[7] 20 h[8] 24 h[9] 27.43±0.05[9] 27.446±0.001 h[9] 27.45±0.01 h[9] 27.45±0.05 h[9] 27.472±0.002 h[9] 27.56±0.01 h[10][a] | |
| 0.20 (assumed)[4] 0.258±0.052[6] | |
| S (Tholen)[1] · S (SMASS)[1][4] S[11] B–V = 0.920[1] U–B = 0.497[1] | |
| 12.51[1][4][6] · 12.59±0.37[11] · 12.86±0.02[7] | |
1139 Atami, provisional designation 1929 XE, is a stony asteroid and sizable Mars-crosser, as well as a synchronous binary system[5] near the innermost region of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 1 December 1929, by Japanese astronomers Okuro Oikawa and Kazuo Kubokawa at the Tokyo Astronomical Observatory (389) near Tokyo.[3] It was named after the Japanese city of Atami.[2] It has the lowest Minimum orbit intersection distance (MOID) to Mars of any asteroid as large as it, its orbit intersecting only 0.03 astronomical units from the planet.
- ^ a b c d e f g h Cite error: The named reference
jpldatawas invoked but never defined (see the help page). - ^ a b Cite error: The named reference
springerwas invoked but never defined (see the help page). - ^ a b Cite error: The named reference
MPC-objectwas invoked but never defined (see the help page). - ^ a b c d e Cite error: The named reference
lcdbwas invoked but never defined (see the help page). - ^ a b Cite error: The named reference
CBET430was invoked but never defined (see the help page). - ^ a b c Cite error: The named reference
Ali-Lagoa-2017was invoked but never defined (see the help page). - ^ a b Cite error: The named reference
Wisniewski-1997was invoked but never defined (see the help page). - ^ Cite error: The named reference
Lupishko-1988bwas invoked but never defined (see the help page). - ^ a b c d e f Cite error: The named reference
geneva-obswas invoked but never defined (see the help page). - ^ Cite error: The named reference
Koff-2006awas invoked but never defined (see the help page). - ^ a b Cite error: The named reference
Veres-2015was invoked but never defined (see the help page).
Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).