| Piú votate - NASA Original Files - The "Ranger" Programme |
ra9_a001.jpgThe Moon from Ranger-9: Alphonsus Crater (1)54 visiteCaption NASA:"The first Ranger 9 image of the Moon, taken with the A camera from a distance of 2378 Km. The image is centered on the Mare Nubium Region of the Moon, which extends to the bottom of the image. At upper left is South-Eastern Oceanus Procellarum. The two craters with the central peaks at right are Alphonsus, diameter 108 Km and below it Arzachel, diameter 96 Km. The crater near the center at about 8:00 is 60 Km Bullialdus. The frame is approximately 1050 Km across and North is at 12:30. The final impact point of Ranger 9 is in the Alphonsus Crater, midway between the central peak and rim at about 1:30 (Ranger 9, A001)".MareKromium
(7 voti)
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ra7_b001.jpgThe Moon from Ranger-7: Mare Cognitum (4)54 visiteRanger-9's ID:
Launched: 21 March 1965
Impacted Moon: 24 March 1965 at 14:08:20 UT
Location of impact: Latitude 12,91° South and Longitude 357,62° East - Alphonsus crater
Ranger Spacecraft Technical Data: each Ranger spacecraft had 6 cameras on board. The cameras were fundamentally the same with differences in exposure times, fields of view, lenses and scan rates. The camera system was divided into two channels, P (partial) and F (full). Each channel was self-contained with separate power supplies, timers, and transmitters. The F-channel had 2 cameras: the wide-angle A-camera and the narrow angle B-camera. The P-channel had four cameras: P1 and P2 (narrow angle) and P3 and P4 (wide angle). The final F-channel image was taken between 2,5 and 5" before impact (altitude about 5 Km) and the last P-channel image 0,2 to 0,4" before impact (altitude about 600 mt). The images provided better resolution than was available from Earth based views by a factor of 1000. These highly detailed images showed Apollo planners that finding a smooth landing site was not going to be easy. MareKromium
(7 voti)
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ra9_p012.jpgThe Moon from Ranger-9: Alphonsus Crater (9)55 visiteCaption NASA:"This image shows the last two pictures taken by Ranger 9 before impact onto the Lunar Surface. The images show the floor of Alphonsus Crater at 12,84° South Lat. and 2,39 West Long.
North is at 1:00 in both images. The top image was taken by camera P3 at a distance of 600 mt just 0,25" before impact. The frame is about 70 mt across. The lower frame is from camera P1. It includes most of the area on the left of the P3 frame and was taken from 1,2 Km, 4,5" prior to impact.
The image is approximately 50 mt across.
Part of the P3 frame is missing because Ranger 9 did not finish transmitting before impact. These were the last images from the Ranger programme, which ended with this mission (Ranger 9, P012)".MareKromium
(6 voti)
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ra8_a030.jpgThe Moon from Ranger-8: Mare Tranquillitatis (2) - HR54 visitenessun commentoMareKromium
(6 voti)
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ra9_b035.jpgThe Moon from Ranger-9: Alphonsus Crater (5)54 visiteCaption NASA:"Ranger 9 camera B image of the North-East rim of Alphonsus Crater at left and Southern rim of Ptolemaeus Crater at the top. The image was taken from 700 Km distance about 4,5 minutes before impact in Alphonsus Crater. The intersecting crater rims exhibit a chaotic, mountainous terrain, in sharp contrast to the flat crater floors. The frame is approximately 120 Km across and North is at 12:30. The image is centered at 12° South Lat. and 1° West Long. (Ranger 9, B035)".MareKromium
(5 voti)
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ra9_b087.jpgThe Moon from Ranger-9: Alphonsus Crater (6)54 visiteCaption NASA:"Final full frame taken by the Ranger 9 B-camera before impact. The image was taken from 15,4 Km about 5,5" before impact. The image, taken on 20 February 1965, shows the floor of Alphonsus Crater and is centered at 12,8 South Lat. and 2,3 West Long.. The frame is about 2,5 Km across and North is at 12:30. Ranger 9 was the last of the Ranger series of impact missions to the Moon (Ranger 9, B087)".MareKromium
(5 voti)
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ra8_a030.gifThe Moon from Ranger-8: Mare Tranquillitatis (2) - LR56 visiteCaption NASA:"Ranger 8 image of the Moon from 302 Km. The image was taken on 20 February 1965 and 9:55 UT, 2,5 minutes before the spacecraft impacted on the Lunar Surface. The two large craters at upper center are Ritter (above left) and Sabine, each about 30 Km in diameter. The Apollo 11 Landing Site is just off the right edge of the image at about 4:00. The image is about 130 Km across and North is up (Ranger 8, A030)".MareKromium
(5 voti)
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ra8_b090.jpgThe Moon from Ranger-8: Mare Tranquillitatis (7)54 visiteCaption NASA:"Ranger 8 camera B image of the Moon about 5 seconds before impact. Ranger 8 impact took place on 20 February 1965 at 9:57:37 UT. This picture was taken from a distance of 11 Km.
The area is in the Sea of Tranquillity about 2° North of the Apollo 11 Landing Site. The frame is about 2 Km across and North is up.
Features as small as 4 mt across can be seen (Ranger 8, B090)".MareKromium
(5 voti)
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ra8_a060.jpgThe Moon from Ranger-8: Mare Tranquillitatis (3)56 visiteCaption NASA:"Last image taken by Ranger 8 camera-A from a distance of 4,2 Km, 2" before impact on 20 February 1965. The area shown is at 2,7° North Lat. and 24,55° East Long.; the image is about 1,4 Km across. The right side of the image is missing because Ranger 8 crashed before completing transmission. This area is about 60 Km away from the Apollo 11 Landing Site in the Sea of Tranquillity. These Ranger close-ups showed for the first time that even areas on the Moon which looked smooth from Earth were peppered with small impact craters. North is up (Ranger 8, A060)".MareKromium
(5 voti)
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ra7_a001.jpgThe Moon from Ranger-7: Mare Cognitum (1)54 visiteLa Storia del Programma di Ricognizione Lunare "Ranger" (il quale ebbe luogo negli Anni 1961-1965) è una storia fatta da 9 Missioni: sei di esse (i "Ranger" da 1 a 6) costiturono dei fiaschi clamorosi - che poi Vi proporremo in scaletta); le ultime tre, invece (I "Ranger" 7, 8 e 9), furono uno storico successo. Attenzione però: noi parliamo di successo "storico" ma, in fondo, si trattava "solo" di spedire un veicolo verso la Luna il cui unico scopo era quello di "scattare delle fotografie" (quante più possibili) e quindi di schiantarsi sulla superficie del nostro Satellite (proprio come ha fatto la Sonda ESA "SMART-1" lo scorso mese di Settembre - 2006). Questa maniera - veramente "pionieristica" - di approcciare la Luna, oggi, ci fa sorridere ma, 45 anni fa, quello che i Ranger-7, 8 e 9 ottennero fu, in fondo, il vero "viatico" per la nascita del Programma Apollo: l'individuazione di uno "spot for a - relatively -safe landing".
Missione Compiuta, ovviamente.MareKromium
(5 voti)
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ra9_p001.jpgThe Moon from Ranger-9: Alphonsus Crater (7)54 visiteCaption NASA:"Four images of the floor of Alphonsus crater taken by the Ranger 9 P-series cameras about 10 seconds before impact on 24 March 1965. The images are ordered by camera (clockwise from upper left) P3, P4, P2, P1. Image P3 was taken from a distance of 25,5 Km and is about 2,9 Km across. P4 was taken from 24,4 Km and extends about 2,8 Km. Image P1 is about 1,1 Km across and was taken from 25,9 Km. Image P2, taken from a distance of 24,7 Km, is about 1 Km across (Ranger 9, P001)".MareKromium
(4 voti)
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ra9_p006.jpgThe Moon from Ranger-9: Alphonsus Crater (8)54 visiteCaption NASA:"These four images of the floor of Alphonsus Crater were taken on 24 March 1965 about 5 seconds before Ranger 9 impacted on the Surface.
The pictures were taken by the four P-series cameras, and are (clockwise from upper left) P3, P4, P2, P1. The P3 image was taken from 14.3 km and is about 1.6 km across. The P4 image is 1,5 Km across, taken at a distance of 13,1 Km. P2, taken from 13,6 Km, is 540 meters across and P1, from 14,7 Km, is 580 mt.
North is at 1:00 for all four images (Ranger 9, P006)".MareKromium
(4 voti)
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