(120132) 2003 FY128

(120132) 2003 FY128
Precovery image of 2003 FY128 taken by the Palomar Observatory in 1996[1]
Discovered byNEAT
Discovery date26 March 2003
(120132) 2003 FY128
detached object[2]
Orbital characteristics[3]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc8159 days (22.34 yr)
Aphelion62.551 AU (9.3575 Tm)
Perihelion37.066 AU (5.5450 Tm)
49.809 AU (7.4513 Tm)
351.53 yr (128397 d)
0° 0m 10.094s / day
Earth MOID36.0755 AU (5.39682 Tm)
Jupiter MOID31.6621 AU (4.73658 Tm)
Physical characteristics
Dimensions460±21 km[4]
8.54 h (0.356 d)

(120132) 2003 FY128, also written as (120132) 2003 FY128, is a trans-Neptunian object with a diameter of about 460 km.[4] It orbits the Sun at a distance of about 49.81 astronomical units.[3] It was discovered on 26 March 2003 by the NEAT program at the Palomar Observatory, California.


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.[2] Though, if Neptune migrated outward, there would have been a period when Neptune had a higher eccentricity.


  1. ^ Lowe, Andrew. "(120132) 2003 FY128 Precovery Images". andrew-lowe.ca.
  2. ^ a b Marc W. Buie (2006-04-02). "Orbit Fit and Astrometric record for 120132". SwRI (Space Science Department). Retrieved 2009-01-22.
  3. ^ a b c "JPL Small-Body Database Browser: 120132 (2003 FY128)" (last observation: 2006-04-02). Retrieved 7 April 2016.
  4. ^ a b c Santos-Sanz, P.; Lellouch, E.; Fornasier, S.; Kiss, C.; Pal, A.; Müller, T. G.; Vilenius, E.; Stansberry, J.; Mommert, M.; Delsanti, A.; Mueller, M.; Peixinho, N.; Henry, F.; Ortiz, J. L.; Thirouin, A.; Protopapa, S.; Duffard, R.; Szalai, N.; Lim, T.; Ejeta, C.; Hartogh, P.; Harris, A. W.; Rengel, M. (2012). ""TNOs are Cool": A survey of the trans-Neptunian region". Astronomy & Astrophysics. 541: A92. arXiv:1202.1481. doi:10.1051/0004-6361/201118541. S2CID 118600525.

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