(95625) 2002 GX32

(95625) 2002 GX32, also written as (95625) 2002 GX32, is a trans-Neptunian object that resides in the Kuiper belt.[2] It has a 3:7 resonance with Neptune.[3] It was discovered on April 8, 2002 by Marc W. Buie, Amy B. Jordan, and James L. Elliot.

(95625) 2002 GX32
Discovery[1]
Discovered byM. W. Buie
A. B. Jordan
J. L. Elliot
Discovery date8 April 2002
Designations
(95625) 2002 GX32
SDO[2]
3:7 resonance[3][4][5]
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc1478 days (4.05 yr)
Aphelion73.624 AU (11.0140 Tm)
Perihelion33.082 AU (4.9490 Tm)
53.353 AU (7.9815 Tm)
Eccentricity0.37994
389.71 yr (142343 d)
3.91 km/s
17.588°
0° 0m 9.105s / day
Inclination13.922°
28.097°
185.83°
Earth MOID32.0761 AU (4.79852 Tm)
Jupiter MOID27.6446 AU (4.13557 Tm)
Physical characteristics
Mean diameter
147 km (assumed)[6]
0.09 (assumed)
Temperature~38 K
7.4[1]

    It came to perihelion in 1997.[1]

    Assuming a generic TNO albedo of 0.09, it is about 153 km in diameter.[6]

    Resonance

    Simulations by Emel'yanenko and Kiseleva in 2007 show that 2002 GX32 has a 99% probability of libration in a 3:7 resonance with Neptune.[7]

    The Neptune 3:7 mean-motion resonance keeps it more than 11 AU from Neptune over a 14000-year period.[4]

    It has been observed 21 times over 4 oppositions and has an orbit quality code of 3.[1]

    The orbital period of both 2002 GX32 and 2001 XT254 around the 3:7 (2.333) resonance of Neptune.

    References
    1. "JPL Small-Body Database Browser: 95625 (2002 GX32)" (2004-06-09 last obs). Retrieved 7 April 2016.
    2. "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Retrieved 2009-01-29.
    3. Marc W. Buie. "Orbit Fit and Astrometric record for 95625" (2006-04-25 using 25 observations). SwRI (Space Science Department). Retrieved 2009-01-29.
    4. "MPEC 2004-N31 : 2002 GX32 = 1994 JV". Minor Planet Center. 2004-07-12. Retrieved 2009-01-29.
    5. "MPEC 2009-A63 :Distant Minor Planets (2009 JAN. 29.0 TT)". Minor Planet Center. 2009-01-13. Retrieved 2009-01-30.
    6. Wm. Robert Johnston (22 August 2008). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 2009-01-29.
    7. Emel’yanenko, V. V (2008). "Resonant motion of trans-Neptunian objects in high-eccentricity orbits". Astronomy Letters. 34 (4): 271–279. Bibcode:2008AstL...34..271E. doi:10.1134/S1063773708040075. S2CID 122634598.
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