| Int'l | Motor | Burn Date | Result | Usage | Launch |
| Desig. | Vehicle | ||||
| UTC/San Jose Orbus 21 | |||||
| 1982-106C | Orbus 21 | 1982 Oct 30 | S | IUS Stage 1 | Titan 34D-1 |
| 1983-026C | Orbus 21 | 1983 Apr 5 | S | IUS Stage 1 | STS-6 |
| 1985-010C | Orbus 21 | 1985 Jan 25 | S | IUS Stage 1 | STS 51-C |
| 1985-092D | Orbus 21 | 1985 Oct 4 | S | IUS Stage 1 | STS 51-J |
| 1986-F01 | Orbus 21 | 1986 Jan 28 | NT | IUS Stage 1 | STS 51-L |
| 1988-091C | Orbus 21 | 1988 Sep 29 | S | IUS Stage 1 | STS-26R |
| 1989-021C | Orbus 21 | 1989 Mar 13 | S | IUS Stage 1 | STS-29R |
| 1989-033C | Orbus 21 | 1989 May 5 | S | IUS Stage 1 | STS-30R |
| 1989-046C | Orbus 21 | 1989 Jun 14 | S | IUS Stage 1 | Titan 45K-1 |
| 1989-084C | Orbus 21 | 1989 Oct 18 | S | IUS Stage 1 | STS-34R |
| 1989-090C | Orbus 21 | 1989 Nov 23 | S | IUS Stage 1 | STS-33R |
| 1990-021B | Orbus 21S | 1990 Mar 14 | NT | HS-389 PKM | Titan CT2 |
| 1990-056C | Orbus 21S | 1990 Jun 23 | S | HS-389 PKM | Titan CT3 |
| 1990-090C | Orbus 21 | 1990 Oct 6 | S | IUS Stage 1 | STS-41 |
| 1990-095C | Orbus 21 | 1990 Nov 13 | S | IUS Stage 1 | Titan 45K-6 |
| 1991-054C | Orbus 21 | 1991 Aug 2 | S | IUS Stage 1 | STS-43 |
| 1991-080C | Orbus 21 | 1991 Nov 25 | S | IUS Stage 1 | STS-44 |
| 1992-026/NNA | Orbus 21S | 1992 May 14 | S | HS-389 PKM | STS-49 |
| 1992-063C | Orbus 21 | 1992 Sep 25 | S | TOS | Titan CT4 |
| 1993-003C | Orbus 21 | 1993 Jan 13 | S | IUS Stage 1 | STS-54 |
| 1993-058D | Orbus 21 | 1993 Sep 12 | S | TOS | STS-51 |
| 1994-084C | Orbus 21 | 1994 Dec 22 | S | IUS Stage 1 | Titan 45K-14 |
| 1995-035C | Orbus 21 | 1995 Jul 13 | S | IUS Stage 1 | STS-70 |
| 1995-F04 | Orbus 21D | 1995 Aug 15 | F | LLV-1 Stage 2 | LLV-1 |
| 1997-008C | Orbus 21 | 1997 Feb 23 | S | IUS Stage 1 | Titan 45K-24 |
| 1997-044/SO | Orbus 21D | 1997 Aug 23 | S | LMLV-1 Stage 2 | LMLV-1 |