Table 5: Reflectance slope and relative errors for all the Centaurs and TNOs observed spectroscopically in the visible range; the objects perihelion distance (q) and their diameter (derived from radiometric and/or thermal and optical measurements, when available, or estimated assuming an albedo of 0.04 (a Fernandez et al. 2002; b Davies et al. 1993; c Jewitt & Kalas 1998; d Margot et al. 2002; e Thomas et al. 2000)), are also given. References (Ref.) for the spectral slopes are: 1. This work; 2. Lazzarin et al. (2003); 3. Barucci et al. (1999); 4. Binzel (1992); 5. Luu & Jewitt (1998); 6. Luu & Jewitt (1996); 7. Boehnhardt et al. (2001); 8. Marchi et al. (2003); 9. de Bergh et al. (2004); 10. Fitzsimmons et al. (1994); 11. Lazzaro et al. (1997); 12. Boehnhardt et al. (2004).
Object Slope D q Ref. Object Slope D q Ref.
  (%/103 Å) (km) (AU)     (%/103 Å) (km) (AU)  
Centaurs         TNOs        
                   
2002 GB10 34.3 $\pm$ 0.1 121 15.188 1 2002 AW197 22.1 $\pm$ 0.2 886d 41.390 1
2002 GZ32 8.3 $\pm$ 0.1 183 18.093 1 2003 AZ84 3.3 $\pm$ 0.2 840 32.724 1
2002 GO9 35.8 $\pm$ 0.1 61 14.039 1 50 000 Quaoar 26.9 $\pm$ 0.2 1230 41.806 1
2000 EC98 23.7 $\pm$ 0.6 64 15.644 2 50 000 Quaoar 28.2 $\pm$ 0.2 1230 41.806 8
1999 OX3 52.5 $\pm$ 0.7 210 17.539 2 1998 SN165 8.8 $\pm$ 0.4 457 36.077 1
2001 PT13 11.1 $\pm$ 0.2 90 8.522 2 2001 QF298 5.8 $\pm$ 0.4 732 34.761 1
2000 QC243 10.1 $\pm$ 0.2 190 13.136 2 2000 GN171 24.1 $\pm$ 0.2 416 28.304 1
1998 SG35 11.8 $\pm$ 0.2 35 5.806 2 2000 GN171 20.7 $\pm$ 0.3 416 28.304 2
2001 BL41 16.4 $\pm$ 0.2 21 6.895 2 2000 GN171 16.2 $\pm$ 0.2 416 28.304 9
2060 Chiron -0.5 $\pm$ 0.2 148a 8.436 3 2000 EB173 24.2 $\pm$ 0.4 732 28.566 2
2060 Chiron -0.5 $\pm$ 0.2 148a 8.436 10 1999 KR16 55.6 $\pm$ 0.7 457 34.036 2
2060 Chiron 2.3 $\pm$ 0.2 148 8.436 11 1999 TC36 30.6 $\pm$ 0.2 675 30.541 2
2060 Chiron 0.4 $\pm$ 0.1 148 8.436 11 1996 GQ21 34.9 $\pm$ 0.3 602 38.228 2
5145 Pholus 55.0 $\pm$ 2.0 190b 8.698 4 1999 DE9 25.5 $\pm$ 0.2 732 32.298 2
7066 Nessus 57.9 $\pm$ 0.9 75 11.773 3 1996 TL66 -1.1 $\pm$ 0.7 632 35.034 5
8405 Asbolus 17.0 $\pm$ 0.4 66a 6.836 3 15 789 1993 SC 20.0 $\pm$ 9.0 328e 32.195 6
10 199 Chariklo 7.8 $\pm$ 0.1 302c 13.074 3 1996 TO66 3.0 $\pm$ 3.0 761 38.019 7
10 370 Hylonome 10.7 $\pm$ 1.1 151 18.856 3 1995 SM55 -12.0 $\pm$ 3.0 717 37.350 7
TNOs         1998 HK151 7.0 $\pm$ 3.0 200 30.363 7
28 978 Ixion 17.9 $\pm$ 0.4 1055 29.881 8 1997 CQ29 27.0 $\pm$ 5.0 316 39.886 7
28 978 Ixion 22.2 $\pm$ 0.2 1055 29.881 12 1997 CS29 27.0 $\pm$ 3.0 602 43.428 7


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