Table I from Bopp (1974) Radial Velocities of YY Gem Radial Velocity (km/s) (O-C) (km/s) Plate HJD Phase Primary Secondary Primary Secondary (2400000+) Em. Abs. Em. Abs. Em. Abs. Em. Abs. 7118 40988.819 0.8418 +105.6 +121.8 -96.9 -86.1 +3.2 +16.8 +1.9 +11.3 7145 40991.858 0.5739 +51.9 +39.5 -50.4 -63.1 -3.2 -20.2 +2.0 -14.7 7154 40992.792 0.7209 +117.6 +132.9 -122.6 -100.3 -2.3 +11.1 -6.5 +15.3 7155 40992.876 0.8241 +113.8 +135.8 -113.2 -116.8 +4.7 +24.4 -7.8 -12.5 7172 40995.741 0.3425 -100.2 -92.2 +101.9 +131.4 +0.1 -3.1 +1.6 +18.7 7173 40995.796 0.4100 -64.5 -61.8 +67.3 +96.2 -0.6 -7.5 +2.7 +21.2 7188 40996.784 0.6234 +81.8 +86.6 -76.0 -69.5 -3.8 -2.4 +6.4 +10.5 7189 40996.844 0.6971 +116.2 +124.6 -109.2 -113.7 +0.9 +7.2 +2.4 -2.9 7209 40998.802 0.1016 -68.2 -56.3 +68.2 +82.2 +3.0 +5.0 -3.6 -0.4 7210 40998.848 0.1581 -97.2 -97.5 +103.3 +116.0 +3.3 -8.2 +2.7 +3.0 7223 40999.827 0.3604 -94.8 -85.1 +95.8 +117.9 -2.7 -3.7 +3.4 +13.6 7644 41282.802 0.8751 +91.3 - -72.3 - +4.8 - +10.9 - 7645 41282.849 0.9328 +66.0 - -49.7 - +15.5 - -1.9 - 7648 41282.989 0.1047 -66.3 - +71.7 - +6.8 - -2.0 - 7658 41285.833 0.5974 +72.3 - -61.3 - +1.9 - +6.1 - 7659 41285.879 0.6539 +98.6 +112.3 -94.8 -84.0 -1.9 +9.0 +2.2 +11.5 7660 41285.923 0.7079 +124.4 +108.9 -113.5 -86.4 +6.7 -10.9 +0.4 +26.9 7661 41285.968 0.7632 +124.0 +133.6 -120.7 - +2.5 +10.2 -3.0 - 7674 41288.782 0.2190 -127.0 - +114.8 - -9.2 - -2.8 - 7675 41288.828 0.2755 -119.3 - +123.7 +107.4 -0.7 - +5.3 -24.3 7678 41289.869 0.5539 +29.8 - -29.8 - -11.3 - +8.8 - 7686 41292.754 0.0969 -72.3 - +65.5 - -4.0 - -3.5 - 7687 41292.800 0.1534 -95.4 - +94.5 - +3.1 - -4.1 - 7688 41292.845 0.2086 -122.2 -96.2 +112.7 +139.1 -6.1 +8.1 -3.2 +10.0 7689 41292.890 0.2639 -117.7 -109.8 +120.6 +126.5 +2.0 -2.1 +1.2 -6.3 7690 41292.939 0.3241 -113.7 -100.5 +105.7 +136.3 -6.5 -4.7 -1.5 +16.4 7691 41292.965 0.3560 -87.8 -78.0 +78.0 +94.6 +6.5 +5.4 -16.1 -11.9 7713 41343.661 0.6145 +74.6 - -79.8 - -6.1 - -2.3 - 7714 41343.707 0.6710 +105.2 - -108.9 - -2.2 - -5.2 - 7715 41343.754 0.7287 +114.7 +131.7 -126.2 -85.1 -6.2 +9.0 -9.2 +31.4 7718 41345.683 0.0977 -75.6 -62.9 +60.6 +73.6 -6.8 -3.9 -8.8 -6.5 7719 41345.739 0.1665 -102.8 - +99.6 - +1.0 - -4.3 - 7720 41348.689 0.7893 +112.2 +110.8 -124.4 -115.0 -6.1 -9.5 -9.9 -1.1 7721 41348.768 0.8863 +77.1 - -82.1 - -3.1 - -5.1 - 7722 41348.815 0.9440 +42.1 - -38.9 - -0.5 - +1.2 -