| Designat. | NEAT name & Image | Disc. with NEAT/ | Date | Vel. (deg/day) | Mag. | Size in km (miles) | Orbit Visual. | Comment* |
| - | UPNJCW | MSSS | 2 Apr | 2.5 | 20 | - | - | Lost or not real |
| 2003 GW | UQ9WDT | MSSS | 4 Apr | 0.8 | 20 | 2.0 (1.2) | orbit | Apollo-Large, high inclination NEA |
| - | UQBY7X | MSSS | 4 Apr | 0.2 | 19 | - | - | Not real or lost |
| 2003 GY | UQNM5E | MSSS | 5 Apr | 0.6 | 21 | 0.4 (0.24) | orbit | Apollo-PHA |
| 2003 GG21 | URDHNHB | Palomar | 7 Apr | 2.9 | 16 | 0.2 (0.1) | orbit | Apollo-PHA |
| 2003 GN51 | US322UA | Palomar | 9 Apr | 0.6 | 20 | - | - | Not NEA |
| 2003 GA34 | US395HC | Palomar | 9 Apr | 0.7 | 19 | - | - | Not NEA |
| - | USDTOIA | Palomar | 10 Apr | 0.5 | 20 | - | - | Not real or lost |
| 2003 HN | UX7Z37 | MSSS | 23 Apr | 0.8 | 19 | 0.5 (0.3) | orbit | Amor |
| 2003 HQ32 | UZ9YNP | MSSS | 29 Apr | 1.2 | 19 | 1.0 (0.6) | orbit | Amor-High inclination |
| 2003 HR32 | UZAQQG | MSSS | 29 Apr | 0.9 | 19 | 1.0 (0.6) | orbit | Apollo-PHA |
| Comet/C 2003 H3 (NEAT) | UZP49H | MSSS | 30 Apr | 0.3 | 17 | - | orbit | Comet- IAUC 8126-with a high-inclination parabolic orbit and perihelion between Mars and Jupiter |
| - | UZPG8E | MSSS | 30 Apr | 0.6 | 19 | - | - | Not real or lost |
*Amors, Apollos, and Atens are the three categories of Near-Earth asteroids (NEAs). Amor asteroids approach the Earth's orbit from the outside, Apollo asteroids cross the Earth's orbit, and Aten asteroids approach the Earth's orbit from the inside. Potentially Hazardous asteroids (PHAs) are larger than ~0.2 km (0.1 mile) and approach close enough to present a potential hazard but not a current hazard.