NOAA-12 and NOAA-15, APT, NOAA-15 APT Off During Conflict Period, 7 June 2004 - Issued: 27 May 2004; 1530 UTC

From:
11:31 AM
Subject: NOAA-12 and NOAA-15, APT, NOAA-15 APT Off During Conflict Period, 7 June 2004 - Issued: 27 May 2004; 1530 UTC
Resent-From: nesdis.osdpd.ipd.Level-1B.notices@noaa.gov,
NESDIS.OSDPD.IPD.all.hands@noaa.gov
To: James Devine

Topic:
NOAA-15 APT Off During NOAA-12/NOAA-15 Conflict Period 28 May - 19 July
2004

Date/Time(UTC) Message Issued:
27 May 2004/1530 UTC

Satellite(s) Involved:
NOAA-12, NOAA-15

Instrument(s) Involved:
APT.

Product(s) Involved/Affected:
Direct readout user data access

Date/Time(UTC) of Initial Implementation:
7 June 2004, 1200 UTC

Details/Specifics of Change:
SOCC has issued the following notice:
NOAA-12 and NOAA-15 will enter a conflict period on May 28 that will last
for approximately 52 days. The BEACON frequencies are separated enough that
both can be left on during this conflict. Due to real-time users' requests,
the NOAA-15 APT will be off for the VHF conflict duration.

Events during conflict period:
- The interrogation conflict period will begin around 0200 UTC on May 28
(S/C separated by 25 minutes).
- NOAA-15 APT will be turned off at approximately 1200 UTC on June 7 (S/C
separated by 15 minutes) when VHF conflict begins.
- SBAND conflict will be experienced from about June 22, 0300 UTC, through
June 24, 0200 UTC, when S/C separation will be around 1 minute.
- APT will be turned back on on July 8 around 1700 UTC (S/C separated by 15
minutes) when VHF conflict ends.
- The interrogation conflict period will end July 19 around 0600 UTC.

Contact Person(s) Name/Email/Phone Number for Questions:
James Devine James.Devine@noaa.gov 301-817-4020 (SOCC Operations)
Charlie Vance Charlie.Vance@noaa.gov 301-457-5247 ext 139 (IPD
Operations)

Web site(s) that contain other relevant information (where applicable):
http://www.osdpd.noaa.gov/PSB/PPP/PPP.html - History of level 1B
notices
http://www.ssd.noaa.gov/PS/SATS/messages.html - All user notices
http://www.oso.noaa.gov/poesstatus/ - SOCC polar satellites status
http://www.oso.noaa.gov/daily-news/index.htm - SOCC morning reports

--
*******************************************
*
* Emily D. Harrod
* NOAA/NESDIS/OSDPD/IPD
* Product Systems Branch
* Pre-Product Processing Group
* E/SP13, Federal Building #4, room 0318
* 5200 Auth Road
* Suitland, Maryland 20746-4304
* USA
* voice 301-457-5247 ext 117
* fax 301-457-5199
* email Emily.Harrod@noaa.gov
*