(15874) 1996 TL66

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(15874) 1996 TL66
Discovery A
Discoverer David C. Jewitt,
Jane X. Luu, and
Jun Chen
Discovery date October 9, 1996
Alternate
designations B		 none
Category Scattered disk object
Orbital elements C
Epoch August 18, 2005 (JD 2453600.5)
Eccentricity (e) 0.577
Semi-major axis (a) 12,401.836 Gm (82.901 AU)
Perihelion (q) 5,240.211 Gm (35.029 AU)
Aphelion (Q) 19,563.460 Gm (130.774 AU)
Orbital period (P) 275,701.583 d (754.83 a)
Mean orbital speed 2.98 km/s
Inclination (i) 24.018°
Longitude of the
ascending node (Ω)		 217.798°
Argument of
perihelion (ω)		 184.699°
Mean anomaly (M) 1.971°
Physical characteristics D
Dimensions ~630 km
Mass 2.6?×1020 kg
Density 2.0? g/cm³
Surface gravity ~0.17 m/s²
Escape velocity ~0.33 km/s
Rotation period  ? d
Spectral class  ?
Absolute magnitude 5.4
Albedo (geometric) 0.10?
Mean surface
temperature		 ~31 K
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(15874) 1996 TL66 (also written (15874) 1996 TL66) is a trans-Neptunian object that resides in the Kuiper belt. Discovered in 1996 by David C. Jewitt et al., it was the first object to be categorised as a scattered disk object (SDO), although (48639) 1995 TL8, discovered a year earlier, was later recognised as a scattered disk object. It was one of the largest known Kuiper belt objects at the time of the discovery.

1996 TL66 orbits the Sun with a semi-major axis of 85.33 AU. Its diameter has been estimated at around 630 km by combined optical/thermal observations [1].

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Small Solar System bodies
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For other objects and regions, see: asteroid groups and families, binary asteroids, asteroid moons and the Solar system
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Trans-Neptunian objects
Plutinos : Pluto* | 1993 RO | 1993 RP | 1993 SB | 1993 SC | 1994 TB | 1995 QZ9 | 1996 SZ4 | 1996 TP66 | 38083 Rhadamanthus | 38628 Huya | 28978 Ixion | 2003 VS2 | 90482 Orcus | Unnumbered: 2003 AZ84

Cubewanos: 1992 QB1 | 1994 GV9 | 1994 JQ1 | 1994 VK8 | 1996 TO66 | 58534 Logos| 1998 WW31 | 19521 Chaos | 53311 Deucalion | 20000 Varuna | 2002 AW197 | 50000 Quaoar | 2002 MS4 | 2002 TX300 | 2002 UX25 | 2003 EL61 | 2004 GV9| 2005 FY9 | Unnumbered: | 2003 QW90 | 2005 RN43

Twotinos: 2002 WC19 | 1996 TR66 | Unnumbered: 1998 SM165 | 1997 SZ10 | 1999 RB216 | 2000 JG81

Scattered disc objects: Eris* | 1995 TL8 | 1996 GQ21 | 1996 TL66 | 2000 OO67 | 2000 OM67 | 2001 KC77 | 2001 UR163 | 2002 CY224 | 2002 GX32 | 2002 TC302 | 90377 Sedna** Unnumbered: 2004 XR190

Unclassified Objects : 1994 JS | 1994 JR1 | 1995 DA2 | 1995 SM55 | 1996 TQ66 | 1997 CR29 | 1997 CS29 | 1997 CU29 | 1997 QJ4 | 1998 HJ151 | 1998 HK151 | 1998 HP151 | 1998 HM151 | 1998 KR65 | 1998 SM165 | 1998 SN1651998 US43 | 1998 VG44 | 1998 WW24 | 1998 WA31 | 1998 WU31 | 1998 WA25 | 1999 CP133 | 1999 CL158 | 1999 CC158 | 1999 DF9 | 1999 HT11 | 1999 HB12 | 1999 HC12 | 1999 KR16 | 1999 OY3

Natural satellites : Charon (Pluto) | Hydra (Pluto) | Nix (Pluto) | Dysnomia (Eris) | S/2000 (1998 WW31) 1 | S/2005 (2003 EL61) 1 | S/2005 (2003 EL61) 2 | (58534) Logos I Zoe
* - Also classified as a dwarf planet   ** - Currently classified as an SDO, though may be part of the Inner Oort Cloud
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