TO: OSIRIS-REx Operations Personnel SUBJECT: NAV DELIVERY OF PRELIM MPF FOR OSIRIS-REx M4B ******************************************************************************************** THE MPF IS LOCATED ON THE FOB IN THE FOLLOWING DIRECTORY: ORXFOB/FDS/MPF orx_mpf_m4b_prelim_od154_v1.xml THE SPICE BINARY FILE IS LOCATED ON THE FOB IN THE FOLLOWING DIRECTORY: ORXFOB/FDS/SPK orx_190601_191001_190614_od154-R-M4B-P-M2C_v1.bsp THE LIGHT TIME FILE IN ASCII FORMAT IS LOCATED ON THE FOB IN THE DIRECTORY: ORXFOB/FDS/LTF orx_ltf_190601_191001_190614_od154_v1.txt THE OPTG FILE IN ASCII FORMAT IS LOCATED ON THE FOB IN THE DIRECTORY: ORXFOB/FDS/OPTG orx_optg_190601_191001_190614_od154_v1.txt ******************************************************************************************** BRIEF -- Version 4.0.0, September 8, 2010 -- Toolkit Version N0066 Summary for: orx_190601_191001_190614_od154-R-M4B-P-M2C_v1.bsp Body: OSIRIS-REX (-64) Start of Interval (ET) End of Interval (ET) ----------------------------- ----------------------------- 2019 JUN 01 17:30:00.000 2019 OCT 01 00:00:00.000 Body: BENNU (2101955) Start of Interval (ET) End of Interval (ET) ----------------------------- ----------------------------- 2015 JAN 01 00:00:00.000 2023 JAN 07 00:00:00.000 Tracking data span used in this solution: Data Start: 01-JUN-2019 17:37:03 Data End: 14-JUN-2019 17:34:18 Burn Time: 25-JUN-2019 17:00:00.0000 UTC DeltaV: 1.60 cm/s Comments: The delivered MPF contains the prelim design of the M4B maneuver. The delivered trajectory file contains M4B, M5B, M1C, and M2C in the trajectory propagation. The maneuver design was based on the spacecraft orbit solution OD154 and planetary ephemeris file DE424. If you have any questions about this delivery, please don't hesitate to contact me via email and/or phone call. Internal Accounting: The delivered files can be found on zion at: /nav/orex/deliveries/mnvr/m4b/prelim BRIEF -- Version 3.0.0, January 14, 2008 -- Toolkit Version N0064 Summary for: orx_190601_191001_190614_od154-R-M4B-P-M2C_v1.bsp Bodies Start of Interval (ET) End of Interval (ET) ------- ----------------------------- ----------------------------- -64 2019 JUN 01 17:30:00.000 2019 OCT 01 00:00:00.000 2101955 2015 JAN 01 00:00:00.000 2023 JAN 07 00:00:00.000