Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/FergusontagS3043tp.pdf Дата изменения: Wed Sep 16 18:29:07 2015 Дата индексирования: Mon Apr 11 17:11:33 2016 Кодировка: Поисковые слова: п п п п п п п п п п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п р п

Proposal Identification No.:

S3043

Date Received:

2015-Sep-08 16:36:45

Technical Page
This proposal has not been submitted before. Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Urgent Astronomy MEO Satellites 14 Hours 1:15

Arcing on GPS and other MEO satellites

Power degradation on GPS satellites that cannot be explained by radiation effects may be caused by arc-induced contamination of the GPS solar arrays. LANL sensors on GPS satellites have detected short radio bursts, correlated with the space environment, that may have the signature of solar array arcing. Estimates of radio and optical emission from arcs on GPS satellites make it seem possible to detect the arcs from large ground-based radio and optical telescopes. In April of 2014, the Long Wavelength Array 1 at Socorro, New Mexico, was used in conjunction with the 2.3 meter optical telescope at the Magdalena Ridge Observatory for simultaneous observations to try to detect arcing, but no detections were made. This October 18-21, another coordinated observing campaign will include the 3.5 m telescope at the Starfire Optical Range at Kirtland AFB. It is desirable to also use the Arecibo Gordon Radiotelescope, at low frequencies and high time resolutions.

Name Dale C Ferguson

Institution US Air Force Research Laboratory

E-mail dale.ferguson@kirtland.af.mil

Phone 505-846-1566

Student no

Remote Observing Request

X

Observer will travel to AO Remote Observing In Absentia (instructions to operator)

Instrument Setup
47 CH receiver L-wide 327

Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none 1


RFI Considerations Frequency Ranges Planned
44-50 310-340 1150-1730

2