The Black Hole Is Orbiting Around the Sun

The black hole is actually quite small. It's very compact. And so when this planet passes in front of the black hole, it actually eclipses a good fraction of it. So you can look at like the brightness of this black hole over time. And they see this huge dip as something apparently eclipsed it. But they only saw this once or have they seen this periodically? They've only seen it once.