Astronomy:2014 SC324
| Discovery[1] | |
|---|---|
| Discovered by | Mt. Lemmon Survey (G96) |
| Discovery date | 30 September 2014 |
| Designations | |
| 2014 SC324 | |
| Minor planet category | |
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 1 | |
| Observation arc | 29 days w/Radar |
| |{{{apsis}}}|helion}} | 2.93880 astronomical unit|AU (439.638 Gm) (Q) |
| |{{{apsis}}}|helion}} | 0.91503 AU (136.887 Gm) (q) |
| 1.92691 AU (288.262 Gm) (a) | |
| Eccentricity | 0.52513 (e) |
| Orbital period | 2.67 yr (976.99 d) |
| Mean anomaly | 152.737° (M) |
| Mean motion | 0° 22m 6.521s / day (n) |
| Inclination | 1.65403° (i) |
| Longitude of ascending node | 210.19563° (Ω) |
| 221.35334° (ω) | |
| Earth MOID | 0.000606726 AU (90,764.9 km) |
| Physical characteristics | |
| Dimensions | 37–85 m (generic)[3] |
| Rotation period | 0.36156 h (21.694 min) |
| Apparent magnitude | 24-29 (2014–2015) |
| Absolute magnitude (H) | 24.3[2] |
2014 SC324 is a sub-kilometer asteroid and fast rotator, classified as a near-Earth object of the Apollo group, approximately 50 meters in diameter.[2] It was first observed on 30 September 2014, by the Mount Lemmon Survey at an apparent magnitude of 21 using a 1.5-meter (59 in) reflecting telescope.[1] With an absolute magnitude of 24.3,[2] the asteroid is about 37–85 meters in diameter.[3]
Description
The preliminary orbit with a short observation arc of 2 days showed that the asteroid had a very small chance of passing 0.000125 astronomical unit|AU (18,700 km; 11,600 mi) from the Moon or 0.0012 AU (180,000 km; 110,000 mi) from Earth on about 23 October 2014.[4] But with an observation arc of 10 days, the nominal (best fit) orbit showed that on 24 October 2014 the asteroid would pass 0.0038 AU (570,000 km; 350,000 mi) (1.5 LD) from Earth and even further from the Moon.[5] The asteroid peaked at apparent magnitude 13.5,[6] placing it in the range of amateurs with roughly 0.25-meter (10 in) telescopes.
It was removed from the Sentry Risk Table on 10 October 2014 using JPL solution #5 with a 10-day observation arc.[7]
It was observed by Goldstone radar on 24–25 October 2014.[8]
References
- ↑ 1.0 1.1 "MPEC 2014-T10: 2014 SC324". IAU Minor Planet Center. 2014-10-02. http://www.minorplanetcenter.net/mpec/K14/K14T10.html. (K14SW4C)
- ↑ 2.0 2.1 2.2 2.3 2.4 "JPL Small-Body Database Browser: (2014 SC324)". Jet Propulsion Laboratory. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2014SC324.
- ↑ 3.0 3.1 "Absolute Magnitude (H)". NASA/JPL. http://neo.jpl.nasa.gov/glossary/h.html.
- ↑ Webcite capture of JPL solution #1 for asteroid 2014 SC324 on 2014-Oct-02
ArchiveToday capture of JPL solution #1 for asteroid 2014 SC324 on 2014-Oct-02. url: N4eGm - ↑ "JPL Close-Approach Data: (2014 SC324)". http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2014SC324;cad=1#cad.
- ↑ "2014SC324 Ephemerides for 23 October 2014 and 24 October 2014". NEODyS (Near Earth Objects – Dynamic Site). http://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=2014SC324&oc=500&y0=2014&m0=10&d0=23&h0=0&mi0=0&y1=2014&m1=10&d1=25&h1=0&mi1=0&ti=1.0&tiu=hours.
- ↑ "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. http://neo.jpl.nasa.gov/risk/removed.html.
- ↑ Lance A. M. Benner. "Goldstone Radar Observations Planning: 2340 Hathor, 2014 SM143, 2014 RQ17, 2014 TV, and 2014 SC324". NASA/JPL Asteroid Radar Research. http://echo.jpl.nasa.gov/asteroids/Hathor/Hathor_planning.html.
External links
- Near-Earth Asteroid 2014 SC324: an exceptional movie (Virtual Telescope Project – 25 October 2014)
- 2014 SC324 at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
- 2014 SC324 at ESA–space situational awareness
- 2014 SC324 at the JPL Small-Body Database
2014 in space | ||
|---|---|---|
| Space probes launches |
|    |
| Impact events | ||
| Supernovae | ||
| Notable comets |
| |
| NEOs | ||
| Exoplanets | ||
| Discoveries |
| |
| Space exploration |
| |
 |  |
