Internal server error for ALPHASAT

[arihantdaga]

    await self.app(scope, receive, send)
  File "/home/ubuntu/.local/lib/python3.8/site-packages/starlette/routing.py", line 670, in __call__
    await route.handle(scope, receive, send)
  File "/home/ubuntu/.local/lib/python3.8/site-packages/starlette/routing.py", line 266, in handle
    await self.app(scope, receive, send)
  File "/home/ubuntu/.local/lib/python3.8/site-packages/starlette/routing.py", line 65, in app
    response = await func(request)
  File "/home/ubuntu/.local/lib/python3.8/site-packages/fastapi/routing.py", line 227, in app
    raw_response = await run_endpoint_function(
  File "/home/ubuntu/.local/lib/python3.8/site-packages/fastapi/routing.py", line 160, in run_endpoint_function
    return await dependant.call(**values)
  File "/home/ubuntu/satellite-communication-station/backend/./api/apis/webbrowser.py", line 22, in get_visibility
    passes = op.predict_next_visible_orbits(sat.name, GS.observer, interval, None, elevation)
  File "/home/ubuntu/satellite-communication-station/backend/./orbitpredictor.py", line 83, in predict_next_visible_orbits
    predicted_pass = predictor.get_next_pass(observer,after_when, max_elevation_gt)
  File "/home/ubuntu/.local/lib/python3.8/site-packages/orbit_predictor/predictors/base.py", line 214, in get_next_pass
    for pass_ in self.passes_over(location, when_utc, limit_date,
  File "/home/ubuntu/.local/lib/python3.8/site-packages/orbit_predictor/predictors/pass_iterators.py", line 52, in __iter__
    yield from self.iter_passes()
  File "/home/ubuntu/.local/lib/python3.8/site-packages/orbit_predictor/predictors/pass_iterators.py", line 76, in iter_passes
    pass_ = self._refine_pass(ascending_date, descending_date)
  File "/home/ubuntu/.local/lib/python3.8/site-packages/orbit_predictor/predictors/pass_iterators.py", line 136, in _refine_pass
    aos = self._find_aos(tca)
  File "/home/ubuntu/.loc

Getting this when trying to predict passes for ALPHASAT.

[arihantdaga]

It is related to this - satellogic/orbit-predictor#98

[arihantdaga]

Have attempted to fix in redkibble/orbit-predictor#1