■ [unidentified] J1509-21: the outburst finished
We confirmed that the fading from the outburst finished and the object has returned to the quiescent state.
The figure shows the light curve in V band and the V-J color variation of the object. The object has recently been faded and the V-J color became redder.
■ blazar PKS 1510-089 : Optical flaring !
The object has recently been bright since JD 2454900. In JD 2454960, the object has an exceptional flare with a rising of a polarization degree. This figure shows the light curve and temporal variation of the polarization degree of the object in V band. The brightness reached about V~13.3. The peak of the polarization degree anticipated that of the brightness. The polarization degree reached about 37%.