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Table 4:

Average colours in BVRIJHS for all candidates (and Eris), and assessment of likely membership based on these colours.
Objecta (B-V) (V-R) (R-I) (R-J) (J-HS) Vis. slope Ref.b Family?
# Designation (mag) (mag) (mag) (mag) (mag) (%/100 nm)    
24835 1995 SM 55$^\dag $ 0.65 $\pm$ 0.01 $0.39 \pm 0.01$ 0.36 $\pm$ 0.02 0.65 $\pm$ 0.03 - 2.0 $\pm$ 0.8 1-8 Y
  1996 RQ 20 0.96 $\pm$ 0.13 0.46 $\pm$ 0.05 0.71 $\pm$ 0.12 - - 22.4 $\pm$ 6.8 9, 10 N
19308 1996 TO 66$^\dag $ 0.68 $\pm$ 0.02 0.39 $\pm$ 0.01 0.37 $\pm$ 0.02 0.61 $\pm$ 0.10 - 2.9 $\pm$ 0.5 1, 10-14 Y
  1998 HL 151 0.67 $\pm$ 0.18 0.42 $\pm$ 0.16 0.79 $\pm$ 0.31 - - 18.1 $\pm$ 16.9 15, 16, 32 ?
181855 1998 WT 31 0.76 $\pm$ 0.32 0.51 $\pm$ 0.25 0.60 $\pm$ 0.28 - - 16.6 $\pm$ 5.2 32 N
  1999 CD 158 0.83 $\pm$ 0.06 0.51 $\pm$ 0.05 0.54 $\pm$ 0.06 1.38 $\pm$ 0.09 - 15.8 $\pm$ 0.6 6, 32 N
40314 1999 KR 16 1.07 $\pm$ 0.03 0.75 $\pm$ 0.02 0.74 $\pm$ 0.02 1.56 $\pm$ 0.08c 0.56 $\pm$ 0.13 40.9 $\pm$ 6.2 9, 16-18, 32 N
  1999 OH 4 2.99 $\pm$ 0.48 0.21 $\pm$ 0.20 0.44 $\pm$ 0.47 - - 20.2 $\pm$ 35.6 32 ?
86047 1999 OY 3$^\dag $ 0.75 $\pm$ 0.03 0.26 $\pm$ 0.03 0.33 $\pm$ 0.04 0.80 $\pm$ 0.12 -0.26 $\pm$ 0.36 -0.5 $\pm$ 5.3 3, 32 Y
86177 1999 RY 215 - - - 0.99 $\pm$ 0.18 0.52 $\pm$ 0.22 - 28 N
  2000 CG 105 1.11 $\pm$ 0.25 0.39 $\pm$ 0.13 0.21 $\pm$ 0.22 - - 6.7 $\pm$ 17.5 32 ?
  2001 FU 172 2.91 $\pm$ 1.53 0.66 $\pm$ 0.19 0.53 $\pm$ 0.22 - - 39.8 $\pm$ 27.9 32 N
  2001 QC 298 0.66 $\pm$ 0.07 0.37 $\pm$ 0.07 0.63 $\pm$ 0.07 1.06 $\pm$ 0.21 0.52 $\pm$ 0.14 9.7 $\pm$ 10.0 19, 32 N
55565 2002 AW 197 0.93 $\pm$ 0.03 0.62 $\pm$ 0.02 0.55 $\pm$ 0.02 1.16 $\pm$ 0.04 0.39 $\pm$ 0.08 22.8 $\pm$ 3.5 20-22, 32 N
  2002 GH 32 0.91 $\pm$ 0.06 0.66 $\pm$ 0.06 0.56 $\pm$ 0.05 - - 24.8 $\pm$ 4.7 19, 23 N
55636 2002 TX 300$^\dag $ 0.66 $\pm$ 0.02 0.36 $\pm$ 0.02 0.32 $\pm$ 0.03 - -0.47 $\pm$ 0.13 0.2 $\pm$ 1.1 21, 23, 32 Y
136108 Haumea$^\dag $ 0.64 $\pm$ 0.01 0.33 $\pm$ 0.01 0.34 $\pm$ 0.01 0.88 $\pm$ 0.01 -0.60 $\pm$ 0.11 -0.6 $\pm$ 0.9 21, 24, 25, 32 Y
  2003 HX 56 1.27 $\pm$ 1.37 -0.26 $\pm$ 2.07 1.28 $\pm$ 2.10 - - 18.4 $\pm$ 32.7 32 ?
120178 2003 OP 32$^\dag $ 0.70 $\pm$ 0.05 0.39 $\pm$ 0.06 0.37 $\pm$ 0.05 - -0.51 $\pm$ 0.08 3.4 $\pm$ 1.1 9, 26, 32 Y
  2003 SQ 317 - - - 0.43 $\pm$ 0.04 -0.45 $\pm$ 0.20 - 32 Y
  2003 TH 58 0.58 $\pm$ 0.12 0.29 $\pm$ 0.13 0.59 $\pm$ 0.15 -0.13 $\pm$ 0.15 1.29 $\pm$ 0.20 3.6 $\pm$ 11.4 32 N
  2003 UZ 117$^\dag $ - - - - -0.62 $\pm$ 0.12 1.1 $\pm$ 0.7d 22, 27, 28, 32 Y
  2004 PT 107 0.82 $\pm$ 0.21 0.65 $\pm$ 0.10 0.68 $\pm$ 0.10 1.15 $\pm$ 0.16 0.54 $\pm$ 0.22 27.9 $\pm$ 8.4 32 N
  2005 CB 79 0.73 $\pm$ 0.04 0.37 $\pm$ 0.05 0.36 $\pm$ 0.05 0.71 $\pm$ 0.08 -0.50 $\pm$ 0.17 3.1 $\pm$ 2.5 32 Y
136472 Makemake 0.83 $\pm$ 0.02 0.5 $\pm$ 0.1e 0.3 $\pm$ 0.1e - - 7.7 $\pm$ 8.8 21, 29 N
  2005 GE 187 - - - 1.22 $\pm$ 0.19 0.65 $\pm$ 0.14 - 32 N
145453 2005 RR 43$^\dag $ 0.77 $\pm$ 0.06 0.41 $\pm$ 0.04 0.29 $\pm$ 0.08 0.48 $\pm$ 0.04 - 3.3 $\pm$ 6.0 8, 22, 26 Y
202421 2005 UQ 513 - - - 1.39 $\pm$ 0.08 0.30 $\pm$ 0.12 18.1 $\pm$ 2.0d 27, 28, 30, 32 N
136199 Eris 0.78 $\pm$ 0.01 0.45 $\pm$ 0.03 0.33 $\pm$ 0.02 0.52 $\pm$ 0.02 0.25 $\pm$ 0.11 5.9 $\pm$ 5.6 21, 22, 31, 32 -

Notes.  (a) There are no published colours for candidates 1996 TR66, 1997 RX9, 1999 OK4, 2000 JG81, 2003 HA57. For 2003 QX91 and 2004 SB60 we measured R-band photometry, but not colours. None of these candidates are included in the table.
(b)  References: [1] Boehnhardt et al. (2001); [2] Gil-Hutton & Licandro (2001); [3] Doressoundiram et al. (2002); [4] McBride et al. (2003); [5] Tegler & Romanishin (2003); [6] Delsanti et al. (2004); [7] Doressoundiram et al. (2007); [8] Rabinowitz et al. (2008); [9] Jewitt & Luu (2001); [10] Tegler & Romanishin (1998); [11] Jewitt et al. (1998); [12] Barucci et al. (1999); [13] Davies et al. (2000); [14] Hainaut et al. (2000); [15] Hainaut & Delsanti (2002); [16] Trujillo & Brown (2002); [17] Sheppard & Jewitt (2002); [18] Delsanti et al. (2006); [19] Santos-Sanz et al. (2009); [20] Doressoundiram et al. (2005a); [21] Rabinowitz et al. (2007); [22] DeMeo et al. (2009); [23] Doressoundiram et al. (2005b); [24] Rabinowitz et al. (2006); [25] Lacerda et al. (2008); [26] Perna et al. (2010); [27] Pinilla-Alonso et al. (2007); [28] Alvarez-Candal et al. (2008); [29] Ortiz et al. (2007); [30] Fornasier et al. (2009); [31] Brown et al. (2005b); [32] This work. Where colours for a given object are published by multiple authors, we quote a weighted mean.
(c) (R-J) calculated from near simultaneous R and J observations by [17] and [18] respectively. No correction is made to this (or any other colour in the table) for possible differences due to changes in rotational phase, although [17] show 1999 KR16 to have a light-curve amplitude of $\Delta m = 0.18$ mag.
(d) Although no photometry is published, measurements of the spectral slope for these objects (derived from optical spectra) can be found in Table 2 of Fornasier et al. (2009). We give a weighted mean for each object, and list the references to the original papers in the table.
(e) The colours for Makemake are calculated from the BVI photometry from [21] along with the R-band photometry from [26]. We use a phase function of $\beta=0.05$ mag deg-1 to correct the R-band photometry to zero phase angle, as [21] show that $\beta$ is approximately constant at this value between the V and I bands. The uncertainty is dominated by the uncertainty on the R-band photometry.
$^{(\dag )}$ These objects listed as confirmed family members by Ragozzine & Brown (2007).


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