TARGET: 190 Ismene SESSION NUMBER: 616 DATE/TIME: 2009 Mar 28 @ 16:00 FILTER: C TELESCOPE: 0.35m SCT FOCAL LENGTH: 77.00 CAMERA: SBIG ST-8E TEMP (C): -10 EXPOSURE (s): 120 APPROX. RA: 17:52 APPROX. DEC: -16 EXPOSURE JD: Mid-exposure JD CORR METHOD: Light-time JD CORRECTION: JD = JD(raw) - 0.02500d UNITY CORR: -5 * log(SunDist * EarthDist): -6.5000 NOTE: The unity correction is NOT included in the reduced magnitudes. MAG. METHOD: Instrumental NOTE: For multiple sessions, differential magnitudes include adjustments ADDED to the Obj-CAvg value to compensate for changing phase angle, distance, and refinements to the base average value of the comparison stars. The phase angle calculations include the effects of the phase parameter, G. This value is taken from the MPCORB value at the time the calculations were made. BASE COMP VALUE: -8.576 BASE CORRECTION: +0.000 PHASE/DIST CORR: +0.000 P/D ADJUST (-/DAY):-0.008 P/D ADJUST (+/DAY):+0.008 THE P/D ADJUSTMENTS ARE INCLUDED IN THE VALUES BELOW. ERROR CALC: The magnitude error is calculated by the following: Err = sqrt(sqr(ERR[target]) + sqr(Err[Comps])) where Err[Target] = 1.0857/SNR[target] Err[Comps] = sqrt(sqr(1.0857/SNR[Comp1])... + sqr(1.0857/SNR[CompN])) / N The factor of 1.0857 converts flux to magnitudes (Howell) ********************************************************************************************* TARGET: 190 Ismene SESSION NUMBER: 617 DATE/TIME: 2009 Mar 29 @ 16:00 FILTER: C TELESCOPE: 0.35m SCT FOCAL LENGTH: 77.00 CAMERA: SBIG ST-8E TEMP (C): -10 EXPOSURE (s): 120 APPROX. RA: 17:52 APPROX. DEC: -16 EXPOSURE JD: Mid-exposure JD CORR METHOD: Light-time JD CORRECTION: JD = JD(raw) - 0.02491d UNITY CORR: -5 * log(SunDist * EarthDist): -6.4925 NOTE: The unity correction is NOT included in the reduced magnitudes. MAG. METHOD: Instrumental NOTE: For multiple sessions, differential magnitudes include adjustments ADDED to the Obj-CAvg value to compensate for changing phase angle, distance, and refinements to the base average value of the comparison stars. The phase angle calculations include the effects of the phase parameter, G. This value is taken from the MPCORB value at the time the calculations were made. BASE COMP VALUE: -8.576 BASE CORRECTION: +0.000 PHASE/DIST CORR: -0.008 P/D ADJUST (-/DAY):-0.008 P/D ADJUST (+/DAY):+0.008 THE P/D ADJUSTMENTS ARE INCLUDED IN THE VALUES BELOW. ERROR CALC: The magnitude error is calculated by the following: Err = sqrt(sqr(ERR[target]) + sqr(Err[Comps])) where Err[Target] = 1.0857/SNR[target] Err[Comps] = sqrt(sqr(1.0857/SNR[Comp1])... + sqr(1.0857/SNR[CompN])) / N The factor of 1.0857 converts flux to magnitudes (Howell) ********************************************************************************************* ------------------------------------------- J.D. Obj-CAvg Err Session ------------------------------------------- 2454919.10703 +1.857 0.012 616 2454919.10906 +1.806 0.011 616 2454919.11108 +1.840 0.011 616 2454919.12075 +1.782 0.010 616 2454919.12277 +1.761 0.010 616 2454919.12478 +1.799 0.010 616 2454919.13427 +1.774 0.010 616 2454919.13630 +1.788 0.010 616 2454919.13830 +1.797 0.010 616 2454919.14762 +1.819 0.010 616 2454919.14962 +1.796 0.009 616 2454919.15163 +1.814 0.010 616 2454919.16090 +1.769 0.009 616 2454919.16293 +1.792 0.009 616 2454919.16496 +1.779 0.009 616 2454919.17433 +1.762 0.009 616 2454919.17636 +1.750 0.008 616 2454919.17837 +1.764 0.009 616 2454919.18788 +1.749 0.008 616 2454919.18990 +1.758 0.008 616 2454919.19191 +1.743 0.008 616 2454919.20122 +1.770 0.008 616 2454919.20324 +1.700 0.008 616 2454919.20524 +1.712 0.008 616 2454919.21486 +1.762 0.008 616 2454919.21690 +1.776 0.008 616 2454919.21890 +1.749 0.008 616 2454919.22833 +1.772 0.008 616 2454919.23035 +1.749 0.008 616 2454919.23243 +1.760 0.008 616 2454919.24167 +1.745 0.008 616 2454919.24368 +1.712 0.007 616 2454919.24571 +1.716 0.007 616 2454919.25520 +1.650 0.007 616 2454919.25724 +1.669 0.007 616 2454919.25926 +1.659 0.007 616 2454919.26847 +1.645 0.007 616 2454919.27050 +1.657 0.007 616 2454919.27251 +1.656 0.008 616 2454920.08881 +1.678 0.021 617 2454920.09094 +1.689 0.020 617 2454920.09297 +1.708 0.018 617 2454920.10167 +1.657 0.012 617 2454920.10369 +1.631 0.013 617 2454920.10570 +1.651 0.013 617 2454920.11500 +1.612 0.010 617 2454920.11700 +1.677 0.012 617 2454920.11901 +1.620 0.011 617 2454920.12864 +1.647 0.009 617 2454920.13068 +1.651 0.009 617 2454920.13269 +1.658 0.009 617 2454920.14226 +1.689 0.011 617 2454920.14428 +1.666 0.010 617 2454920.14629 +1.688 0.010 617 2454920.15598 +1.729 0.009 617 2454920.15806 +1.752 0.009 617 2454920.16009 +1.724 0.009 617 2454920.16954 +1.758 0.009 617 2454920.17156 +1.768 0.009 617 2454920.17357 +1.794 0.009 617 2454920.20420 +1.799 0.014 617 2454920.21490 +1.824 0.009 617 2454920.21691 +1.796 0.008 617 2454920.21893 +1.794 0.008 617 2454920.22850 +1.793 0.008 617 2454920.23052 +1.812 0.008 617 2454920.23255 +1.789 0.008 617 2454920.24167 +1.732 0.008 617 2454920.24368 +1.811 0.009 617 END OF FIXED DATA SECTION. DO NOT MAKE ANY CHANGES ABOVE THIS LINE.