(118378) 1999 HT11
Discovery | |
---|---|
Discovered by | Kitt Peak National Observatory |
Discovery date | 17 April 1999 |
Designations | |
MPC designation | (118378) 1999 HT11 |
TNO 4:7 resonance[1] | |
Orbital characteristics[2] | |
Epoch 13 January 2016 (JD 2457400.5) | |
Uncertainty parameter 4 | |
Observation arc | 5881 days (16.10 yr) |
Aphelion | 49.013 AU (7.3322 Tm) |
Perihelion | 38.894 AU (5.8185 Tm) |
43.954 AU (6.5754 Tm) | |
Eccentricity | 0.11511 |
291.41 yr (106436 d) | |
323.89° | |
0° 0m 12.176s / day | |
Inclination | 5.0533° |
87.910° | |
186.37° | |
Earth MOID | 37.8761 AU (5.66618 Tm) |
Jupiter MOID | 33.6401 AU (5.03249 Tm) |
Physical characteristics | |
Dimensions | 146 km[3] |
0.09? (assumed) | |
7.6 | |
|
(118378) 1999 HT11, also written as (118378) 1999 HT11, is a trans-Neptunian object (TNO) in a 4:7 orbital resonance with Neptune.[1] It has a perihelion (closest approach to the Sun) at 38.858 AU and an aphelion (farthest approach from the Sun) at 49.231 AU. It is about 146 km in diameter. It was discovered on April 17, 1999, at Kitt Peak National Observatory, Arizona.
References
- 1 2 Marc W. Buie (2005-05-10). "Orbit Fit and Astrometric record for 118378". (using 25 observations) SwRI (Space Science Department). Retrieved 2009-01-29.
- ↑ "JPL Small-Body Database Browser: 118378 (1999 HT11)". NASA/Jet Propulsion Laboratory. Retrieved 7 April 2016.
- ↑ List of known trans-Neptunian objects Archived 20 June 2007 at WebCite
1. http://cfa-www.harvard.edu/iau/lists/TNOs.html
External links
|
|
|
This article is issued from Wikipedia - version of the Friday, April 08, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.