# Is there an equivalent to aircraft ATA100 numbering system for Spacecraft?

The ATA100 numbering system is frequently used in aircraft as a common referencing standard.

"The unique aspect of the chapter numbers is its relevance for all aircraft. Thus a chapter reference number for a Boeing 747 will be the same for other Boeing aircraft, a BAe 125 and Airbus Aircraft. Examples of this include Oxygen (Chapter 35), Electrical Power (Chapter 24) and Doors (Chapter 52)."- Wikipedia

For instance, ATA100 reference code 27-50 implies the chapter Flight Controls, section Flaps.

Is there an equivalent numbering system for spacecraft and their systems?

• ATA 100 is used on aircraft. It defines how aircraft are maintained using approved manuals. All repairs io aircraft MUST HAVE an approved CMM (component maintenance manual) Space shuttle is a military aircraft. I have never came across CMM S for shuttle. You can look under DMWR's (military cmm's). – Gene Feb 10 at 16:03
• Space shuttle was not a military aircraft. – Organic Marble Feb 10 at 18:01

I am not familiar with ATA100, but shuttle had what seems to be an analogous numbering system. It was used in telemetry IDs, and I think in work packages as well. I doubt it was used in other spacecraft.

• Cool! I think spacecraft might be too bespoke to make a cross-reference system worthwhile. Would this document be publicly available? :) – MikeFoxtrot Mar 19 '17 at 13:52
• I don't think it is. You can see some examples of the numbering convention in use, though, in the CAIB Report on the Columbia accident (s3.amazonaws.com/akamai.netstorage/anon.nasa-global/CAIB/…), page 65 for instance. V09T.... is shown, which decodes as an Orbiter TPS temperature, as is V12G..., an Orbiter Wing Box strain gauge. – Organic Marble Mar 19 '17 at 14:06

Spacecraft tracked by NASA's Deep Space Network rely on SPICE, a software library for observation geometry information. SPICE itself maintains a list of semi-official spacecraft (and natural body) identifiers, the NAIF Integer ID codes.

The NAIF Integer ID codes do not apply to Earth-orbiting spacecraft. Instead, the North American Aerospace Defense Command (NORAD) assigns its own identifiers. NAIF maps them as SPICE_ID = -100000 - NORAD_ID.

Other countries may have their own internal designations, and the CCSDS is trying to standardize the methodology.

The answer to your question would be no, there is nothing like ATA1000. Instead, there are many ad hoc numbering systems aiming to consolidate.

Within SPICE, specific instruments are numbered according to the spacecraft:

 NAIF instrument code = (s/c code)*(1000) - instrument number 

In the linked page they cite as example the instruments of Voyager 2:

 -32000 -> Instrument Scan Platform -32001 -> ISSNA (Imaging science narrow angle camera) -32002 -> ISSWA (Imaging science wide angle camera) -32003 -> PPS (Photopolarimeter) -32004 -> UVSAG (Ultraviolet Spectrometer, Airglow port) -32005 -> UVSOCC (Ultraviolet Spectrometer, Occultation port) -32006 -> IRIS (Infrared Interferometer Spectrometer and Radiometer)