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Explorer 33
American scientific satellite from Explorer programme, forth in the Interplanetary Monitoring Platform series. Explorer 33 was launched on July 1, 1966 aboard a Thor Delta E1 from Cape Canaveral & Kennedy. Latest status in GCAT: left Earth orbit for deep space (Jul 2, 1966).
COSPAR 1966-058ANORAD 2258United States
Identity
- Name in GCAT
- Explorer 33
- Payload designation
- AIMP D
- International designator
- 1966-058A
- NORAD catalog number
- 2258
- GCAT identifier
- S02258
- UN registration
- A/AC.105/INF.144
Mission
- Mission type
- Space science
- Use
- Civil government
- Program
- IMP
- Owner
- GSFC
- Country
- United States
- Builder
- NASA Goddard Space Flight Center
- Platform (bus)
- AIMP
Launch
- Date
- July 1, 1966 · 16:02 UTC
- Launch record
- 1966-058Success
- Rocket
- Thor Delta E1
- Spaceport
- Cape Canaveral & Kennedy · pad LC17A
Orbit and fate
- Orbit class (GCAT)
- CLO
- Perigee
- 79,527 km
- Apogee
- 477,380 km
- Inclination
- 21.66°
- Status
- Left Earth orbit for deep space
- Status date
- July 2, 1966
- Last known active
- May 31, 1971
- End of operations
- May 31, 1971
Size
- Mass
- 57 kg
- Dry mass
- 57 kg
- Total mass with attached objects
- 94 kg
- Length
- 0.5 m
- Diameter
- 0.70 m
- Span
- 4.4 m
Deep space
- Deep-space catalog entry
- D00117
- Final central body
- Luna
- Phase start
- July 5, 1966
- Phase outcome
- Flyby · July 9, 1966
- Destination
- Earth
Flight phases
| From | Central body | Ended | Outcome | Next |
|---|---|---|---|---|
| Jul 2, 1966 | Earth | Jul 5, 1966 | Escaped to another body | Luna |
| Jul 9, 1966 | Earth | Sep 28, 1966 | Escaped to another body | Luna |
| Sep 28, 1966 | Luna | Sep 29, 1966 | Flyby | Earth |
| Sep 29, 1966 | Earth | Nov 20, 1966 | Escaped to another body | Luna |
| Nov 20, 1966 | Luna | Nov 20, 1966 | Flyby | Earth |
| Nov 20, 1966 | Earth | Dec 16, 1966 | Escaped to another body | Luna |
| Dec 16, 1966 | Luna | Dec 16, 1966 | Flyby | Earth |
| Dec 16, 1966 | Earth | Jan 13, 1967 | Escaped to another body | Luna |
| Jan 13, 1967 | Luna | Jan 13, 1967 | Flyby | Earth |
| Jan 13, 1967 | Earth | Feb 7, 1967 | Escaped to another body | Luna |
| Feb 7, 1967 | Luna | Feb 7, 1967 | Flyby | Earth |
| Feb 7, 1967 | Earth | Mar 6, 1967 | Escaped to another body | Luna |
| Mar 6, 1967 | Luna | Mar 6, 1967 | Flyby | Earth |
| Mar 6, 1967 | Earth | May 27, 1967 | Escaped to another body | Luna |
| May 27, 1967 | Luna | May 27, 1967 | Flyby | Earth |
| May 27, 1967 | Earth | Aug 16, 1967 | Escaped to another body | Luna |
| Aug 16, 1967 | Luna | Aug 16, 1967 | Flyby | Earth |
| Aug 16, 1967 | Earth | — | In orbit, no recent tracking | — |
Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q1384557 (CC0).