id	domain	url
ap-1338	www.spacetrack.org	http://www.spacetrack.org/tle
ap-1338	www.hindawi.com	http://www.hindawi.com/journals/aa/2010
ap-1338	arxiv.org	http://arxiv.org/abs/0810.1179
ap-1338	www.hindawi.com	http://www.hindawi.com/journals/aa/2010
ap-1338	www.qsl.net	http://www.qsl.net/kd2bd/predict.html
ap-1338	www.projectpluto.com	http://www.projectpluto.com/find