Early Orbit Determination Scheme for the Juno Space Vehicle

The present status (1959-1960) of the ABMA Early Orbit Determination scheme for the Juno space vehicle is described, The design of the scheme was essentially influenced by three factors: 1) its origin centered around post flight vehicle analysis; 2) the flexibility required for accepting varied kinds of data; and 3) the potential of high speed computers concentrated in the ABMA Computation Laboratory. The scheme is outlined and the evaluation techniques used for the various steps of the orbit determination are discussed in detail.