1、 ISO 2015 Space data and information transfer systems Tracking data message AMENDMENT 1 Systmes de transfert des informations et donnes spatiales Message de donnes de suivi AMENDEMENT 1 INTERNATIONAL STANDARD ISO 13526 Reference number ISO 13526:2010/Amd.1:2015(E) First edition 2010-09-15 AMENDMENT
2、1 2015-07-01ISO 13526:2010/Amd.1:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mech
3、anical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva,
4、Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org Recommended Standard CCSDS 503.0-B-1 AMENDMENT 1 Issue Date: September 2010 Tracking Data Message AMENDMENT 1 The Management Council of the Consultative Committee for Space Data Systems (CCSDS) has authorized the pub
5、lication of amendment 1 to CCSDS 503.0-B-1, issued November 2007. Page 3-27 Subsection 3.5.2.6 RANGE, insert new sentence following “If ambiguous range is provided . . . the RANGE observable must be performed”: “For two-way and three-way data, the ICD should specify whether the observable is based u
6、pon the round trip light time, or half the round trip light time (due to the signals having traveled to the spacecraft and back to the receiver).” Page 3-31 Subsection 3.5.5.1 CLOCK_BIAS, replace third and fourth sentences (“For example, the CLOCK_BIAS keyword . . . consistent with the TDM conventio
7、n for differenced data”) with the following: “For example, the CLOCK_BIAS keyword may be used to show the difference between UTC and a station clock by setting PARTICIPANT_1 to the name of the station clock and PARTICIPANT_2 to UTC. The observable should be calculated as clock#2 minus clock#1 (i.e.,
8、 UTC ST, where ST is the station time), consistent with the TDM convention for differenced data.” Distribution Control Number: TC 10-22 Reference Number: CCSDS 503.0-B-1 Cor. 1 NOTE Current versions of CCSDS documents are maintained at the CCSDS Web site: http:/www.ccsds.org/ Correspondence regardin
9、g CCSDS documents should be addressed to CCSDS Secretariat Space Communications and Navigation Office, 7L70 Space Operations Mission Directorate NASA Headquarters Washington, DC 20546-0001, USA AMENDMENT 1 TO CCSDS 503.0-B-1 (Continued) Page 3-31 Subsection 3.5.5.1 CLOCK_BIAS (continued), after the
10、fifth sentence (“This parameter may . . . including Delta-DOR.”), insert the following: “If used for Delta-DOR, only a single CLOCK_BIAS should be provided per daily VLBI session, with a time-tag strictly before the first data point (e.g., one minute prior), and with the understanding that the clock
11、 will continue to drift throughout the session. An exception could be made for the (rare) case where a station clock is reset in the middle of a VLBI session, in which case a second CLOCK_BIAS measurement may be provided.” Page B-3 Add new row at end of table: Page D-11 Figure D-11, at the bottom of
12、 the figure, replace “CLOCK_BIAS = 2004-136T15:42:00.0000 -4.59e-7 CLOCK_BIAS = 2004-136T16:02:00.0000 -4.59e-7” with “CLOCK_BIAS = 2004-136T15:41:00.0000 -4.59e-7” Page D-15 Figure D-15, replace “PARTICIPANT_1 = UTC-NIST PARTICIPANT_2 = DSS-10” with “PARTICIPANT_1 = DSS-10 PARTICIPANT_2 = UTC-NIST”
13、 Distribution Control Number: TC 10-22 Reference Number: CCSDS 503.0-B-1 Cor. 1 Page 2 of 3 33. Whether the RANGE observable for 2W and/or 3W range is based on the 3.5.2.6 round trip light time, or half the round trip light time. AMENDMENT 1 TO CCSDS 503.0-B-1 (Continued) Page D-15 Figure D-15 (cont
14、inued), replace “PARTICIPANT_1 = UTC-NIST PARTICIPANT_2 = DSS-40” with “PARTICIPANT_1 = DSS-40 PARTICIPANT_2 = UTC-NIST” replace “PARTICIPANT_1 = UTC-NIST PARTICIPANT_2 = DSS-60” with “PARTICIPANT_1 = DSS-60 PARTICIPANT_2 = UTC-NIST” Distribution Control Number: TC 10-22 Reference Number: CCSDS 503.0-B-1 Cor. 1 Page 3 of 3 ISO 13526:2010/Amd.1:2015(E) ISO 2015 All rights reserved IC S 49.140 Price based on 3 pages
