Astronet Поиск по астрономическим сайтам English Russian
        Точная форма слов   О проекте   Сайты   Справка
Поиск по   - Поискать по всем серверам
Найдено документов: 7528 (2 сайтов) ---- Время поиска: 0.34сек.   

Показаны документы, содержащие фрагменты текста из документа

1. Solar System Studies at AO
... 2015 . ... Observations using the Arecibo S-band (2380 MHz, 12.6 cm) planetary radar system started in 1976 and its power and sensitivity were greatly improved with the telescope upgrade and Gregorian-dome installation in the mid-1990s. Below, we show the number of near-Earth asteroids attempted and detected since the radar program resumed in 1998. ... The number of NHATS objects detected with Arecibo similarly jumped in 2012, and 2015 was again a record year, where we detected 23 of these objects. ...
[ Сохраненная копия ]  Ссылки -- 7.0 Кб -- 09.04.2016
Похожие документы

... 2.3 Data acquisition Spectra generated by the Multibeam correlator contain the usual structure seen in spectra from other H i instruments: a bandpass spectrum which is the sum of the sky , ground and receiver temperatures multiplied by the product of the filters in the receiver chain; superimposed on this is a noise ... Note also that sources extended much beyond ,40 arcmin can be imaged poorly in HIPASS images because of the bandpass sidelobe effect described in Section 3.3. ...
[ Текст ]  Ссылки -- 370.1 Кб -- 14.03.2003
Похожие документы

Астронет | Научная сеть | ГАИШ МГУ | Поиск по МГУ | О проекте | Авторам

Комментарии, вопросы? Пишите: или сюда

Rambler's Top100 RFBR Яндекс цитирования