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TOPO 1
TOPO 1 was launched on April 8, 1970 aboard a Thorad SLV-2G Agena D from Vandenberg. Latest status in GCAT: in orbit.
COSPAR 1970-025BNORAD 4363United States
Identity
- Name in GCAT
- TOPO I
- Common name
- TOPO 1
- Payload designation
- Secor II S/N 18 (ITT MAT)
- Other names
- STP S70-3:PNX
- International designator
- 1970-025B
- NORAD catalog number
- 4363
- GCAT identifier
- S04363
- UN registration
- A/AC.105/INF.223
Mission
- Mission type
- Geodesy
- Use
- Defense
- Program
- Secor II
- Owner
- USA ETL
- Country
- United States
- Builder
- ITT Federal Laboratories
- Platform (bus)
- Secor
Launch
- Date
- April 8, 1970 · 08:17 UTC
- Launch record
- 1970-025Success
- Rocket
- Thorad SLV-2G Agena D
- Spaceport
- Vandenberg · pad SLC2E
Orbit and fate
- Orbit class (GCAT)
- LEO/S
- Perigee
- 1,085 km
- Apogee
- 1,090 km
- Inclination
- 99.89°
- Status
- In orbit
- Last known active
- 1971
- End of operations
- 1975
Size
- Mass
- 18 kg
- Dry mass
- 18 kg
- Length
- 0.2 m
- Diameter
- 0.40 m
- Span
- 0.5 m
Launched together
Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q6137575 (CC0).