I am using sgp4 python package (developed by Brandon Rhodes); I am inputting the TLE information for ISS(Zarya). I get the position of the satellite at a certain date, in the in ECI coordinate syst...

I have looked at the examples here on using ephem to calculate sunrise and sunset, and have that working great. I get in trouble when I try to calculate the midpoint between those two times. Here'...

I am having a hard time figuring out how to calculate when a satellite crosses a specific Longitude. It would be nice to able to provide a time period and a TLE and be able to return all the times ...

I have seen a couple of answers referring to PyEphem on here and how that can produce sunset/sunrise times, however it would be more useful to me if I could find a solution using solely Astropy pac...

I would like to get coordinates of objects in various XYZ coordinates, not where they appear in the sky. I'm interested in: ECE: "Earth Centered Inertial" (not rotation with the earth) ECEF: "Ear...

In space SE it was suggested I use PyEphem to calculate orbits from two-line elements. Now I'm curious how it calculates "build-in" solar system objects like the planets and their satellites. Does ...

tried to calculate sun lat and long using PyEphem but not matching with ephemeris SUN: 2011 MAY 04 We 04 14:46:08 13TA12 = 43 degrees approx (As per website www.findyourfate.com) a = Sun() a.comp...

I very much like having pylint tell me if I'm using a non-existent member. However, my new project is using both twisted and the ephem modules, which seem to confuse pylint. How can I get rid of t...

Is it possible to calculate Dawn, Dusk, and sunset times using PyEphem? I've used PyEphem to produce day and night time, but I didn't find anything on sunset/dusk/dawn

I'm new to PyEphem and this is probably a simple question. I want to calculate the angle of the sun above the horizon at a certain GPS point and date. My code is as follows: import ephem import da...

I have never used pyephem before, and I'm not expert in satellite positioning. I'd like to exploit pyephem to calculate the position of a satellite using TLE. I have to do something very easy, lik...

I'm trying to write a basic python scrip that will track a given satellite, defined with tle's, from a given location. I'm not a asto/orbital person but am trying to become smarter on it. I am run...

I'm trying to write a basic python script that will track a given satellite, defined with tle's, from a given location. I'm not a asto/orbital person but am trying to become smarter on it. I am ru...

I've a query on the results given by the PyEphem module relating to Observer() queries, and the effects of elevation. I understand from a couple of sources (such as http://curious.astro.cornell.edu...

I am using PyEphem and want to calculate the length of a shadow (assume a stick of unit length is planted in the ground). The length will be given by cot(phi), where phi is the solar elevation angl...

the output should process the first date as "day" and second as "night". I've been playing with this for a few hours now and can't figure out what I'm doing wrong. Any ideas? Edit I assume that th...