The Ground Network Project Site (NASA/GSFC Code 453)

Note: Points of Contact for submitting inputs to update and coordination of the GN Priority List should be directed to:

Chris Schwartz, NASA/GSFC Code 450.1, 301-286-0172
Chris Wilkinson, NASA/GSFC Code 428, 301-614-5212
Patrick L. Crouse, NASA/GSFC Code 444, 301-286-9613

A. Following are the priority lists for the GN.

B. The priority lists are created for the use of operations personnel at the White Sands Complex (WSC).
The list provides strict guidelines for mission support in the event of service request conflicts during the forecast period and the applicable list will be utilized to resolve the conflicts. After the confirmed schedule is transmitted, the priority list does not apply; priority is given to the confirmed scheduled request, except for the absolute priorities listed in Ground Network Priorities. In the event of a real-time emergency, operations management may enforce and/or temporarily amend the priority list as necessary. Missions receiving only emergency/contingency or launch and early orbit support (i.e., not routine mission support) are implicitly included in the Absolute Priority list and not explicitly called out in the GN Priority List. Any mission receiving Network proficiency support will be granted incrementally increasing priority in the event that conflicts repeatedly preclude planned proficiency tests.

C. Absolute Priority List (applies to all periods):
   1. Emergency
         A. Human
           B. Spacecraft
   2. Space Transportation System ( STS ) Launch and Landing Support
   3. Expendable Launch Vehicle (ELV) Launch Support
   4. Critical Support
         A. Launch and Early Orbit Phase Support (Spacecraft)
                1) NASA Missions (including Cooperative)
                2) Non-NASA Missions
         B. Human
         C. Spacecraft Operations (e.g., maneuvers)
         D. STS Critical Pre-mission Testing and Kennedy Space Center (KSC) Pad Testing ( Merritt Island [ MIL ])
   5. TDRSS
   6. Normal Operations
   7. Mission Testing
   8. Scheduled Maintenance


D. Mission Priority List:
1. STS Launch and Landing Support	18. GRACE- 1/2
2. ELV Launch Support	19. ACRIMSAT
3. TDRSS	20. RHESSI
4. STS Orbital Support	21. FAST
5. ISS	22. TERRA
6. AQUA	23. HST
7. AURA	24. NOAA
8. ICESAT	25. ERS-2
9. QUIKSCAT	26. SAMPEX
10. AIM	27. Orbview-2(SEAWIFS)
11. THEMIS	28. GP-B
12. SORCE	29. GOES
13. JASON-1	30. LANDSAT-5
14. TRACE	31. COSMIC
15. EO-1	32. Solar-B
16. LANDSAT-7	33. COBE
17. SAC-C

Print Disclaimer
The controlled copy of this document is on-line at the GSFC Code 450 Next Generation Integrated Network at https://code450ngin.gsfc.nasa.gov. Printed copies of this document are for reference purposes only. It is the user's responsibility to verify that the version of any printed documentation matches the on-line version.