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: http://www.ipa.nw.ru/PAGE/FUNDAMENTAL/LSBSS/winample_guide/user3khf.htm
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The results of calculation are presented in tabular form. Values of O – C in any coordinate system are expressed in seconds of arc in both coordinates. It is important to realize that in any coordinate system the differences of observed and computed values of the first coordinate are multiplied by cosine of the second coordinate value to make these differences in both coordinates to be comparable to each other. It is precisely these values that are displayed as O – C.
In case computed positions of minor planet for all or some part of moments are found without accounting for perturbations, the corresponding moments are followed by asterisk (without perturbations are computed positions for all minor planets if moments of their observations lie outside the basic interval of 16 months or for ordinary minor planets (having perihelion distance greater than 1.4 AU), if inside this interval, but outside the 120 day intervals centered at their oppositions. If observation data contain value of magnitude, then difference between this value and computed one is displayed under column heading O – C / Mag. In case observed value is given not in V band then value of O – C in magnitude is accompanied by asterisk.
The coordinate system and type of computed positions are indicated in status bar.
At the bottom right of screen the total number of strings in the table is indicated.