Astronomy:(120132) 2003 FY128

(120132) 2003 FY₁₂₈

Precovery image of 2003 FY128 taken by the Palomar Observatory in 1996
Discovery
Discovered by	NEAT
Discovery date	26 March 2003
Designations
MPC designation	(120132) 2003 FY128
Alternative designations	none
Minor planet category	detached object
Orbital characteristics
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc	8159 days (22.34 yr)
|{{{apsis}}}|helion}}	62.551 astronomical unit|AU (9.3575 Tm)
|{{{apsis}}}|helion}}	37.066 AU (5.5450 Tm)
Semi-major axis	49.809 AU (7.4513 Tm)
Eccentricity	0.25584
Orbital period	351.53 yr (128397 d)
Mean anomaly	28.257°
Mean motion	0° 0m 10.094s / day
Inclination	11.757°
Longitude of ascending node	341.68°
|{{{apsis}}}|helion}}	175.26°
Earth MOID	36.0755 AU (5.39682 Tm)
Jupiter MOID	31.6621 AU (4.73658 Tm)
Physical characteristics
Dimensions	460±21 km
Rotation period	8.54 h (0.356 d)
Geometric albedo	0.079±0.010
Absolute magnitude (H)	4.8

(120132) 2003 FY₁₂₈ (provisional designation 2003 FY₁₂₈) is a trans-Neptunian object with a diameter of about 460 km. It orbits the Sun at a distance of about 49.81 astronomical units. It was discovered on 26 March 2003 by the NEAT program at the Palomar Observatory, California .

Classification

It is classified as a detached object by the Deep Ecliptic Survey (DES), since its orbit appears to be beyond the current control of Neptune. Though, if Neptune migrated outward, there would have been a period when Neptune had a higher eccentricity.

External links

• (120132) 2003 FY128 Precovery Images
• (120132) 2003 FY128 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters