Orbital elements of DELTA 1 DEB
| Launched | 11 June 1975 | 
| Flight ended | – | 
| Launch site | Air Force Western Test Range, California, USA | 
| Owner | United States | 
| NORAD ID | 21289 | 
| Date fetched  | 
                    Epoch osculation  | 
                    Inc. [°]  | 
                    Ecc. | RA asc node [hr]  | 
                    Arg Peri. [°]  | 
                    Mean anom [°]  | 
                    Mean motion [rev/day]  | 
                    Abs. mag  | 
                
| Date fetched  | 
                    Epoch osculation  | 
                    Inc. [°]  | 
                    Ecc. | RA asc node [hr]  | 
                    Arg Peri. [°]  | 
                    Mean anom [°]  | 
                    Mean motion [rev/day]  | 
                    Abs. mag  | 
                
| 2025 Nov 03 18:57 | 2025 Nov 02 12:24:58 | 99.8817 | 0.02474 | 20.5478 | 161.6548 | 350.9524 | 12.99997 | – | 
| 2025 Nov 02 18:57 | 2025 Oct 29 12:23:05 | 99.8818 | 0.02473 | 20.3054 | 170.7051 | 350.9524 | 12.99997 | – | 
| 2025 Nov 01 18:58 | 2025 Oct 29 12:23:05 | 99.8818 | 0.02473 | 20.3054 | 170.7051 | 350.9524 | 12.99997 | – | 
| 2025 Oct 31 18:57 | 2025 Oct 29 12:23:05 | 99.8818 | 0.02473 | 20.3054 | 170.7051 | 350.9524 | 12.99997 | – | 
| 2025 Oct 30 18:57 | 2025 Oct 29 12:23:05 | 99.8818 | 0.02473 | 20.3054 | 170.7051 | 350.9524 | 12.99997 | – | 
| 2025 Oct 29 18:57 | 2025 Oct 29 12:23:05 | 99.8818 | 0.02473 | 20.3054 | 170.7051 | 350.9524 | 12.99997 | – | 
| 2025 Oct 28 18:57 | 2025 Oct 23 22:57:44 | 99.8814 | 0.02471 | 19.9685 | 183.2836 | 350.9524 | 12.99997 | – | 
| 2025 Oct 27 18:57 | 2025 Oct 23 22:57:44 | 99.8814 | 0.02471 | 19.9685 | 183.2836 | 350.9524 | 12.99997 | – | 
| 2025 Oct 26 18:57 | 2025 Oct 23 22:57:44 | 99.8814 | 0.02471 | 19.9685 | 183.2836 | 350.9524 | 12.99997 | – | 
| 2025 Oct 25 17:57 | 2025 Oct 23 22:57:44 | 99.8814 | 0.02471 | 19.9685 | 183.2836 | 350.9524 | 12.99997 | – | 
| 2025 Oct 24 17:57 | 2025 Oct 23 22:57:44 | 99.8814 | 0.02471 | 19.9685 | 183.2836 | 350.9524 | 12.99997 | – | 
| 2025 Oct 22 17:56 | 2025 Oct 17 22:53:03 | 99.8808 | 0.02470 | 19.6047 | 196.8824 | 350.9524 | 12.99997 | – | 
| 2025 Oct 21 17:56 | 2025 Oct 17 22:53:03 | 99.8808 | 0.02470 | 19.6047 | 196.8824 | 350.9524 | 12.99997 | – | 
| 2025 Oct 20 17:56 | 2025 Oct 17 22:53:03 | 99.8808 | 0.02470 | 19.6047 | 196.8824 | 350.9524 | 12.99997 | – | 
| 2025 Oct 19 17:56 | 2025 Oct 17 22:53:03 | 99.8808 | 0.02470 | 19.6047 | 196.8824 | 350.9524 | 12.99997 | – | 
| 2025 Oct 18 17:56 | 2025 Oct 17 22:53:03 | 99.8808 | 0.02470 | 19.6047 | 196.8824 | 350.9524 | 12.99997 | – | 
| 2025 Oct 17 17:56 | 2025 Oct 07 12:07:21 | 99.8798 | 0.02466 | 18.9715 | 220.5646 | 350.9524 | 12.99997 | – | 
| 2025 Oct 16 17:56 | 2025 Oct 07 12:07:21 | 99.8798 | 0.02466 | 18.9715 | 220.5646 | 350.9524 | 12.99997 | – | 
| 2025 Oct 15 17:56 | 2025 Oct 07 12:07:21 | 99.8798 | 0.02466 | 18.9715 | 220.5646 | 350.9524 | 12.99997 | – | 
| 2025 Oct 14 17:56 | 2025 Oct 07 12:07:21 | 99.8798 | 0.02466 | 18.9715 | 220.5646 | 350.9524 | 12.99997 | – | 
| 2025 Oct 12 17:56 | 2025 Oct 07 12:07:21 | 99.8798 | 0.02466 | 18.9715 | 220.5646 | 350.9524 | 12.99997 | – | 
| 2025 Oct 11 17:57 | 2025 Oct 07 12:07:21 | 99.8798 | 0.02466 | 18.9715 | 220.5646 | 350.9524 | 12.99997 | – | 
| 2025 Oct 09 17:56 | 2025 Oct 07 12:07:21 | 99.8798 | 0.02466 | 18.9715 | 220.5646 | 350.9524 | 12.99997 | – | 
| 2025 Oct 08 17:56 | 2025 Oct 07 12:07:21 | 99.8798 | 0.02466 | 18.9715 | 220.5646 | 350.9524 | 12.99997 | – | 
| 2025 Oct 07 17:56 | 2025 Oct 07 12:07:21 | 99.8798 | 0.02466 | 18.9715 | 220.5646 | 350.9524 | 12.99997 | – |