################################################################# Photometric Measurements of 2167 Erin in R Band University of Wisconsin-Eau Claire Asteroid Group George Stecher, gstecher@uwec.edu Lyle Ford, fordla@uwec.edu Kayla Lorenzen Sarah Ulrich Department of Physics and Astronomy University of Wisconsin-Eau Claire 105 Garfield Ave. Eau Claire, Wisconsin 54702-4004 USA http://www.uwec.edu/physics/asteroid/ Measurements made at Hobbs Observatory (MPC code 750) 0.6 m "Air Force" telescope (f/5 Alt-Azimuth Newtonian) Apogee Alta U55 camera Omega Optical Bessell Photometric filters 60 second exposures Data analyzed using MPO Canopus 9.3.1.0 V and R data used to find transforms. Modified Hardie method used to determine first order extinction coefficients. Observations NOT corrected for asteroid-Earth light travel time. ################################################################# J.D. Mag. Err ------------------------------- 2454179.56225 14.661 0.019 2454179.56462 14.633 0.032 2454179.57748 14.488 0.045 2454179.57911 14.445 0.027 2454179.58075 14.450 0.034 2454179.58273 14.403 0.034 2454179.58509 14.387 0.041 2454179.58747 14.339 0.036 2454179.58984 14.310 0.050 2454179.59222 14.300 0.052 2454179.59463 14.258 0.047 2454179.59733 14.228 0.056 2454179.59990 14.213 0.059 2454179.60263 14.189 0.055 2454179.60436 14.161 0.051 2454179.60885 14.164 0.061 2454179.61051 14.178 0.061 2454179.61227 14.136 0.049 2454179.61391 14.174 0.055 2454179.61641 14.165 0.057 2454179.61804 14.180 0.063 2454179.61972 14.182 0.061 2454179.62156 14.176 0.055 2454179.63536 14.326 0.059 2454179.63708 14.356 0.067 2454179.63946 14.363 0.066 2454179.64208 14.400 0.065 2454179.64385 14.427 0.062 2454179.64556 14.463 0.064 2454179.64733 14.468 0.070 2454179.64909 14.490 0.066 2454179.65097 14.495 0.067 2454179.65259 14.547 0.067 2454179.65428 14.532 0.069 2454179.65645 14.589 0.071 2454179.65810 14.587 0.070 2454179.65978 14.623 0.069 2454179.66194 14.621 0.071 2454179.66362 14.623 0.074 2454179.66530 14.634 0.075 2454179.66697 14.670 0.080 2454179.66866 14.610 0.076 2454179.67032 14.641 0.076 2454179.67212 14.623 0.076 2454179.67380 14.602 0.078 2454179.67553 14.619 0.081 2454179.67787 14.610 0.080 2454179.67911 14.620 0.082 2454179.68086 14.612 0.082 2454179.68284 14.525 0.082 2454179.68558 14.589 0.091 2454179.68795 14.567 0.085 2454179.69031 14.624 0.090 2454179.69271 14.513 0.086 2454179.69557 14.488 0.090 2454179.69801 14.450 0.091 2454179.70037 14.430 0.092 2454179.70442 14.368 0.096 2454179.70723 14.328 0.088 2454179.70890 14.301 0.089 2454179.71058 14.278 0.090 2454179.71229 14.283 0.092 2454179.71480 14.276 0.095 2454179.71668 14.240 0.092 2454179.71838 14.234 0.094 2454179.72003 14.219 0.094 2454179.72169 14.239 0.096 2454179.72385 14.215 0.096 2454179.72559 14.246 0.096 2454179.72734 14.214 0.098 2454179.72905 14.187 0.097 2454179.73083 14.185 0.098 2454179.73311 14.185 0.101 2454179.73478 14.205 0.105 2454179.73647 14.248 0.100 2454179.73815 14.207 0.104 2454179.73985 14.221 0.101 2454179.74168 14.232 0.108 2454179.74338 14.229 0.108 2454179.74502 14.219 0.106 2454179.74726 14.246 0.104 2454179.74927 14.257 0.106 2454179.75095 14.282 0.113 2454179.75260 14.310 0.106 2454179.75434 14.332 0.108 2454179.75666 14.363 0.112 2454179.75839 14.373 0.112 2454179.76015 14.391 0.112 2454179.76183 14.416 0.110 2454179.76348 14.456 0.114 2454179.76513 14.470 0.113 2454179.76681 14.457 0.115 2454179.76847 14.514 0.112 2454179.77019 14.544 0.116 2454179.77186 14.552 0.118 2454179.77451 14.566 0.115 2454179.77617 14.586 0.116 2454179.77788 14.611 0.117 2454179.77957 14.628 0.119 2454179.78132 14.577 0.123 2454179.78300 14.656 0.123 2454179.78469 14.638 0.124 2454179.78634 14.669 0.130 2454179.78800 14.689 0.123 2454179.79082 14.658 0.122 2454179.79249 14.682 0.124 2454179.79417 14.712 0.123 2454179.79597 14.724 0.132 2454179.79837 14.693 0.128 2454179.80009 14.693 0.127 2454179.80177 14.651 0.127 2454179.80478 14.643 0.131 2454179.80642 14.634 0.130 2454179.80808 14.597 0.131 2454179.81041 14.591 0.145 2454179.81206 14.568 0.141 2454179.81370 14.533 0.134 2454179.81535 14.509 0.138 2454179.81767 14.448 0.135