\begin{table}%tb4 \caption{\label{indhip}Individual all--sky Hipparcos observations of \oca transformed to Johnson $V$ magnitudes. Observations with flags larger than 1 were omitted. All times of observations are in HJD-$2~400~000$.} %%\centering \small \begin{tabular}{cccccc} \hline\hline\noalign{\smallskip} Time of obs. & $V$&Time of obs. & $V$&Time of obs. & $V$ \\ \hline\noalign{\smallskip} 47~867.7228& 4.450& 48~219.3769& 4.463& 48~623.4208& 4.487\\ 47~867.7973& 4.453& 48~219.3912& 4.461& 48~623.4954& 4.493\\ 47~867.8116& 4.454& 48~219.4657& 4.459& 48~688.6303& 4.481\\ 47~913.4622& 4.482& 48~219.4800& 4.460& 48~688.8080& 4.477\\ 47~913.4765& 4.459& 48~219.5546& 4.467& 48~688.8826& 4.486\\ 47~913.5511& 4.455& 48~219.5689& 4.456& 48~688.8969& 4.491\\ 47~913.5654& 4.451& 48~219.6435& 4.469& 48~701.5921& 4.484\\ 47~943.4915& 4.468& 48~219.6578& 4.474& 48~701.7699& 4.499\\ 47~943.5058& 4.468& 48~219.8213& 4.471& 48~701.7842& 4.503\\ 47~943.6692& 4.454& 48~219.8356& 4.468& 48~701.9477& 4.494\\ 47~943.6836& 4.455& 48~219.9102& 4.470& 48~701.9620& 4.485\\ 47~962.3317& 4.461& 48~219.9245& 4.470& 48~702.1254& 4.490\\ 47~962.3460& 4.456& 48~219.9990& 4.474& 48~702.1398& 4.477\\ 47~962.4206& 4.459& 48~220.0134& 4.477& 48~702.2144& 4.482\\ 47~962.4349& 4.460& 48~220.0879& 4.476& 48~702.2287& 4.484\\ 47~962.5095& 4.457& 48~220.1023& 4.487& 48~764.7035& 4.492\\ 47~962.5238& 4.454& 48~259.7937& 4.467& 48~764.7780& 4.489\\ 48~073.8505& 4.468& 48~259.8081& 4.468& 48~764.7923& 4.492\\ 48~073.8649& 4.463& 48~259.8826& 4.472& 48~764.8669& 4.486\\ 48~073.9394& 4.463& 48~282.8060& 4.481& 48~764.9558& 4.487\\ 48~073.9538& 4.464& 48~282.8203& 4.479& 48~765.1336& 4.485\\ 48~074.0283& 4.463& 48~308.1285& 4.486& 48~765.1479& 4.484\\ 48~074.0426& 4.468& 48~308.1428& 4.487& 48~765.2225& 4.485\\ 48~124.9628& 4.459& 48~308.2174& 4.482& 48~765.2368& 4.479\\ 48~125.0374& 4.462& 48~308.2317& 4.478& 48~765.3114& 4.480\\ 48~217.7769& 4.480& 48~418.3209& 4.467& 48~765.4002& 4.476\\ 48~217.8658& 4.473& 48~418.3352& 4.472& 48~765.5780& 4.493\\ 48~217.8801& 4.462& 48~418.4098& 4.471& 48~765.5924& 4.489\\ 48~218.0436& 4.468& 48~418.4241& 4.472& 48~774.6448& 4.493\\ 48~218.0579& 4.463& 48~440.6430& 4.465& 48~774.6591& 4.488\\ 48~218.1324& 4.463& 48~440.8954& 4.476& 48~774.7336& 4.488\\ 48~218.1468& 4.458& 48~440.9097& 4.476& 48~774.9115& 4.492\\ 48~218.2213& 4.458& 48~470.2193& 4.485& 48~774.9258& 4.492\\ 48~218.2357& 4.461& 48~470.2336& 4.479& 48~775.0003& 4.492\\ 48~218.3102& 4.463& 48~470.3225& 4.495& 48~775.0146& 4.486\\ 48~218.3245& 4.466& 48~506.7342& 4.487& 48~775.0892& 4.491\\ 48~218.4880& 4.472& 48~506.7485& 4.488& 48~775.1035& 4.486\\ 48~218.5023& 4.470& 48~517.6670& 4.480& 48~775.1781& 4.487\\ 48~218.5769& 4.472& 48~517.6813& 4.483& 48~775.3559& 4.487\\ 48~218.5912& 4.470& 48~517.7559& 4.486& 48~964.8397& 4.492\\ 48~218.6658& 4.466& 48~517.7702& 4.479& 48~964.8540& 4.491\\ 48~218.6801& 4.472& 48~606.8034& 4.478& 48~964.9285& 4.490\\ 48~218.9324& 4.476& 48~606.8780& 4.479& 48~964.9428& 4.487\\ 48~218.9467& 4.468& 48~606.8923& 4.479& 49~012.7145& 4.468\\ 48~219.0213& 4.476& 48~606.9669& 4.478& 49~012.7891& 4.490\\ 48~219.0356& 4.468& 48~606.9812& 4.479& 49~012.8034& 4.493\\ 48~219.1102& 4.470& 48~623.2430& 4.480& 49~038.4330& 4.490\\ 48~219.1245& 4.469& 48~623.3176& 4.477& 49~038.4473& 4.485\\ 48~219.1991& 4.465& 48~623.3319& 4.478& -- & -- \\ 48~219.2134& 4.463& 48~623.4065& 4.480& -- & -- \\ \hline \end{tabular} \end{table}