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Table 1.

Journal of the 2I observations.

UT Date Facility rh Δ α χ§ Standard
2019 [au] [au] [deg]
Sep 19 IRTF 2.67 3.26 15.78 1.95 HD 283886
Sep 24 Gemini 2.60 3.16 16.77 2.15 SAO 79667
Oct 09 IRTF 2.41 2.84 19.78 1.77 HD 87680

Notes.

(†)

rh and Δ are the heliocentric and geocentric distances, respectively;

(‡)

α is the phase angle;

(§)

χ is the airmass.

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