Synthetic Tracking Using ZTF Deep Drilling Data Sets
Rusholme, Ben; Bellm, Eric C.; Graham, Matthew J.; Kulkarni, Shrinivas R.; Kupfer, Thomas; Laher, Russ R.; Mahabal, Ashish; Masci, Frank J.; Shupe, David L.; Prince, Thomas A.; Zhai, Chengxing; Shao, Michael; Saini, Navtej S.; Helou, George; Ye, Quanzhi; Rosnet, Philippe; Trahan, Russell; Shen, Janice
United States, France
Abstract
The Zwicky Transit Facility (ZTF) is a powerful time domain survey telescope with a large field of view of 47 ${\deg }^{2}$ deg 2 . We apply the synthetic tracking technique to integrate a ZTF's deep drilling data set, which consists of 133 nominal 30 s exposure frames spanning about 1.5 hr, to search for slowly moving asteroids down to approximately 23rd magnitude. We found 1168 objects from searching 40 of the 64 CCD-quadrant subfields, each of which covers a field size of about 0.73 ${\deg }^{2}$ deg 2 . While most of the objects are in the core region of the asteroid belt, there are asteroids belonging to families of Trojan, Hilda, Hungaria, Phocaea, and near-Earth-asteroids. Such an approach is effective and productive for discovering new asteroids. Here we report the data processing and results as well as discuss a potential deep drilling operation mode using this approach for survey facilities.