Statements (28)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:photographer
scientific instrument |
| gptkbp:aperture |
f/1.0
|
| gptkbp:countryOfOrigin |
gptkb:United_States
|
| gptkbp:designedBy |
James G. Baker
Joseph Nunn |
| gptkbp:focusArea |
wide-field
|
| gptkbp:height |
50 cm
|
| https://www.w3.org/2000/01/rdf-schema#label |
Baker-Nunn camera
|
| gptkbp:introducedIn |
1957
|
| gptkbp:notableFeature |
curved film plane
highly corrected optics |
| gptkbp:notableFor |
tracking artificial satellites
|
| gptkbp:numberBuilt |
21
|
| gptkbp:operatedBy |
gptkb:NASA
gptkb:US_Air_Force gptkb:Royal_Greenwich_Observatory various international observatories |
| gptkbp:relatedTo |
space surveillance
optical tracking network |
| gptkbp:status |
mostly retired
|
| gptkbp:usedBy |
gptkb:Smithsonian_Astrophysical_Observatory
|
| gptkbp:usedFor |
satellite tracking
|
| gptkbp:usedIn |
gptkb:Project_Mercury
gptkb:Project_Vanguard |
| gptkbp:bfsParent |
gptkb:James_Gilbert_Baker
gptkb:Baker_James_C._Baker |
| gptkbp:bfsLayer |
7
|