1807 Slovakia, provisional designation 1971 QA, is a stony asteroid and slow rotator from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 20 August 1971, by Slovak astronomer Milan Antal at Skalnaté pleso Observatory in the High Tatras mountains of Slovakia and named after the Slovak Republic.
The asteroid orbits the Sun in the inner main-belt at a distance of 1.8–2.6 AU once every 3 years and 4 months (1,213 days). Its orbit has an eccentricity of 0.18 and an inclination of 3° with respect to the ecliptic.
Slovakia has an exceptionally long rotation period of 308 hours with a high brightness variation of 1.10 magnitude (U=3-). The Collaborative Asteroid Lightcurve Link (CALL) adopts a period of 308.6 hours with an amplitude of 1.1 magnitude.
According to the survey carried out by NASA’s Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Slovakia measures 9.14 kilometers in diameter, and its surface has an albedo of 0.31, while CALL assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 9.40 kilometers with an absolute magnitude of 12.5