ISO 13526:2010/Amd 1:2015

INTERNATIONAL ISO
STANDARD 13526
First edition
2010-09-15
AMENDMENT 1
2015-07-01
Space data and information transfer
systems — Tracking data message
AMENDMENT 1
Systèmes de transfert des informations et données spatiales —
Message de données de suivi
AMENDEMENT 1
Reference number
ISO 13526:2010/Amd.1:2015(E)
©
ISO 2015

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ISO 13526:2010/Amd.1:2015(E)

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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
publication 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 upon the
round trip light time, or half the round trip light time (due to the signal’s 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 convention 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., UTC – ST, where ST is the
station time), consistent with the TDM convention for differenced data.”
Distribution Contr
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