Table 2: Observational circumstances of asteroid targets for the Rosetta mission.
Object
Night UT-start $T_{\rm exp}$ Tel. Instr. Grism/prism Slit airm.

(hh:mm) (s) (arcsec)

437 Rhodia 25 Jan. 04 15:35 600 IRTF SpeX 0.8-2.5 $\mu$ m 0.8 1.30

437 Rhodia 03 Mar. 04 10:07 960 IRTF SpeX 0.8-2.5 $\mu$ m 0.8 1.17

1393 Sofala 25 Jan. 04 15:00 720 IRTF SpeX 0.8-2.5 $\mu$ m 0.8 1.05

2513 Baetsle 25 Jan. 04 14:21 1320 IRTF SpeX 0.8-2.5 $\mu$ m 0.8 1.10

2867 Steins 25 Jan. 04 13:21 1100 IRTF SpeX 0.8-2.5 $\mu$ m 0.8 1.02

3050 Carrera 25 Jan. 04 11:00 1200 IRTF SpeX 0.8-2.5 $\mu$ m 0.8 1.08

21 Lutetia 26 May 04 10:13 660 NTT EMMI GRISM 1 (0.4-0.95 $\mu$ m) 1.5 1.55

2513 Baetsle 30 Jan. 04 8:40 960 NTT EMMI GRISM 1 (0.4-0.95 $\mu$ m) 1.5 1.13

2867 Steins 29 Jan. 04 7:58 720 NTT EMMI GRISM 1 (0.4-0.95 $\mu$ m) 1.0 1.40

2867 Steins 25 May 04 23:28 1200 NTT EMMI GRISM 1 (0.4-0.95 $\mu$ m) 1.5 1.41

3050 Carrera 30 Jan. 04 6:50 960 NTT EMMI GRISM 1 (0.4-0.95 $\mu$ m) 1.5 1.29

5538 Luichewoo 29 Jan. 04 7:00 1920 NTT EMMI GRISM 1 (0.4-0.95 $\mu$ m) 1.0 1.20

437 Rhodia 29 Feb. 04 02:42 180 TNG DOLORES LR-R (0.51-0.95 $\mu$ m) 1.5 1.28

1393 Sofala 29 Feb. 04 03:46 360 TNG DOLORES LR-R (0.51-0.95 $\mu$ m) 1.5 1.09

2513 Baetsle 29 Feb. 04 04:06 1200 TNG DOLORES LR-R (0.51-0.95 $\mu$ m) 1.5 1.31

3418 Izvekov 29 Feb. 04 02:18 480 TNG DOLORES LR-R (0.51-0.95 $\mu$ m) 1.5 1.07

1393 Sofala 1 Mar. 04 05:08 480 TNG NICS AMICI (0.8-2.5 $\mu$ m) 1.5 1.25

2513 Baetsle 2 Mar. 04 02:44 1920 TNG NICS AMICI (0.8-2.5 $\mu$ m) 1.5 1.19

3418 Izvekov 2 Mar. 04 01:38 1920 TNG NICS AMICI (0.8-2.5 $\mu$ m) 1.5 1.08

5538 Luichewoo 2 Mar. 04 03:51 1920 TNG NICS AMICI (0.8-2.5 $\mu$ m) 1.5 1.32

**Table 2:** Observational circumstances of asteroid targets for the Rosetta mission.
Object	Night	UT-start	$T_{\rm exp}$	Tel.	Instr.	Grism/prism	Slit	airm.
		(hh:mm)	(s)				(arcsec)
437 Rhodia	25 Jan. 04	15:35	600	IRTF	SpeX	0.8-2.5 $\mu$ m	0.8	1.30
437 Rhodia	03 Mar. 04	10:07	960	IRTF	SpeX	0.8-2.5 $\mu$ m	0.8	1.17
1393 Sofala	25 Jan. 04	15:00	720	IRTF	SpeX	0.8-2.5 $\mu$ m	0.8	1.05
2513 Baetsle	25 Jan. 04	14:21	1320	IRTF	SpeX	0.8-2.5 $\mu$ m	0.8	1.10
2867 Steins	25 Jan. 04	13:21	1100	IRTF	SpeX	0.8-2.5 $\mu$ m	0.8	1.02
3050 Carrera	25 Jan. 04	11:00	1200	IRTF	SpeX	0.8-2.5 $\mu$ m	0.8	1.08
21 Lutetia	26 May 04	10:13	660	NTT	EMMI	GRISM 1 (0.4-0.95 $\mu$ m)	1.5	1.55
2513 Baetsle	30 Jan. 04	8:40	960	NTT	EMMI	GRISM 1 (0.4-0.95 $\mu$ m)	1.5	1.13
2867 Steins	29 Jan. 04	7:58	720	NTT	EMMI	GRISM 1 (0.4-0.95 $\mu$ m)	1.0	1.40
2867 Steins	25 May 04	23:28	1200	NTT	EMMI	GRISM 1 (0.4-0.95 $\mu$ m)	1.5	1.41
3050 Carrera	30 Jan. 04	6:50	960	NTT	EMMI	GRISM 1 (0.4-0.95 $\mu$ m)	1.5	1.29
5538 Luichewoo	29 Jan. 04	7:00	1920	NTT	EMMI	GRISM 1 (0.4-0.95 $\mu$ m)	1.0	1.20
437 Rhodia	29 Feb. 04	02:42	180	TNG	DOLORES	LR-R (0.51-0.95 $\mu$ m)	1.5	1.28
1393 Sofala	29 Feb. 04	03:46	360	TNG	DOLORES	LR-R (0.51-0.95 $\mu$ m)	1.5	1.09
2513 Baetsle	29 Feb. 04	04:06	1200	TNG	DOLORES	LR-R (0.51-0.95 $\mu$ m)	1.5	1.31
3418 Izvekov	29 Feb. 04	02:18	480	TNG	DOLORES	LR-R (0.51-0.95 $\mu$ m)	1.5	1.07
1393 Sofala	1 Mar. 04	05:08	480	TNG	NICS	AMICI (0.8-2.5 $\mu$ m)	1.5	1.25
2513 Baetsle	2 Mar. 04	02:44	1920	TNG	NICS	AMICI (0.8-2.5 $\mu$ m)	1.5	1.19
3418 Izvekov	2 Mar. 04	01:38	1920	TNG	NICS	AMICI (0.8-2.5 $\mu$ m)	1.5	1.08
5538 Luichewoo	2 Mar. 04	03:51	1920	TNG	NICS	AMICI (0.8-2.5 $\mu$ m)	1.5	1.32

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations and data reduction
	3 Data analysis and discussion
	4 Target selection and characterization
	5 Conclusions
	References