Upload
bob-andrepont
View
231
Download
0
Embed Size (px)
Citation preview
8/8/2019 Vanguard 3 Press Kit
1/14
NAYIONAL AERONAUTICS AND SPACE ADMINISTRATION
WASHINGTON 25 . D. C.
H ~ l d or ReleaseUnt $1 Launched
No. 19-59
SATELLITE DESCRIPTIONA N D
EXPERIMENTS
With t h e f i r i n g 95 Vangcaard S a t e l l i t e Launching Veh icle t h e
l a s t i n t h e VmgJard s e r i e s 9 t h e U. S. w i l l a t te m p t t o pu t i n t o
o r b i t an i n s t r - m s n t p?ckage t o measure t h e e a r t h ' s m a g n e t i c f e l d ,
m l a r X-rays, a_~?d pace e n v i r c m e n t a l c o n d i t i o n s . The ins t rumented
payload weighs 5C ; Y X C . ~ Y, T3t;al weight i n o r b i t , i n c l u di n g tin?
a t t a c h e d thir2-stage Casi_aZg, w i l l be about 100 pounds.The s a t e l l i t e 4s made o f magnesium an d f i b e r g l a s s , a n d l o o k s
rmzh like E A oTser-sfzei3 i c e cream cone -- a 26-inch tape red tubee x t e ~ d i n g r o m a 2 C - k c % sphe re , The t u b e , f a b r i c a t e d of g l a s s
Pfbsrs and phenoiic v"e?sizs a?r,d ra,nging i n d iame te r from 6 t o 2$
Lcches, c s n t a f a s if? 5 - b ~ 2 p a magcetometer t o measure t h e e a r $ h P s
magnetic f i e l f i ? , T?.e f c r w a r 2 s e c t i o n o f t h e s p h e r e f r o m which t h e
t u b s extende as a l m maair ~8 i b ep g l a s s . The r ema in ing th re e - qc a r t e r s
of the s2kerE: i s magr-52:sI~&m,
The szzellite!s kat.t.ery of 62 small s i l v er - z i n c c e l l s h as an
es t%mat%d - i f e X m e sf 90 days,
These a r s th e a p ~ r ~ x f a n a t e eight br3akdoms of' t h e s a t e l l i t e :
s t ruc tu ra l wePgh t ( inc1udf sg a11 of" t h o s e items not immediately
connected with the experiments such 8 8 antennas, internal supp~rts,and I T - s t ~ m e n t s t f c r aekagfng) is 19 pounds ; ba t te ry composed o f
8/8/2019 Vanguard 3 Press Kit
2/14
- 2 -
62 smal l s i l v e r - z i n c c e l l s , 22,5 pounds; and the experiments
themselves fmeludisg associated e l e c t r o n i c s , 8,5 pounds,
Tie Snc l fmi t ion oP t h e s a t e l l i t e ' s o r b i t i s expected t o be
expEoratfcn, mc*6 st;il:aa,-ina detec%i on, undergoes con s tan t changes
F S l a i n g ~ ed s o c k e 2 - S a r ~ e magnetometers proved the exis tenw
8/8/2019 Vanguard 3 Press Kit
3/14
- 3 -
were of a short duration. Day-to-day readings f r o m varying
a l t i t u d e s w i l l pave the way for more wide-scoped s c i e n t i f i c
conclus ions .
Here i s bow t h i s experiment w i l l work:
The magnetometer consis ts o f a copper c o i l f i l l e d w i t h l i q u i d
(hexane) l o c a t e d i n t h e s e a l e d t i p of t he 26- inch t ape re d tube .
Wires connect the c o i l t o t h e e l e c t r o n i c s and b a t t e r i e s of t h e
s a t e l l i t e in t h e 20-inch sp he re . On command f r o m a g r o u n d s t a t i o n ,
a r e l a y c l o s e s which sends 6+ amperes of c u r r e n t t o t h e c o i l for
about two seconds.
E x r g f z i n g t h e c o i l o r i e n t s t h e pro tons (hydrogen atoms) i n
t h e l i c p i d a n d s e t s t h e m s p in n in g w i t h in t h e c o i l i n a p r e s c r i b e d
manner.
A f t e r about two secondss t h e f l ow o f cu r r en t s t o p s . Then --f o r tke m x t two t o two and a half seconds -- t h e p r o t o n s s p i n i na wobbli-ag o r b r t i m i d e t h e c oil. a s d i c t a t e d by t h e e a r t h ' s m agne tic
f i e l d . Th e f requency of t h e i r movement impar ts vo l ta ge t o t h e c o i l .TbEs c y c l i c v c l t a g e t h e n is a m p l i f i e d and t r a n s m i t t e d i n s t a n t a n e o u s l y
to a ground receiver where i t i s taped. Simult aneous ly a ground
magnetometer r e a d k g i s made.
AnalyzirAg t h e s e tw o s i g n a l s s h o ul d t e l l u s much a b ou t t h e
e a r t h ' s magnetic f i e l d .
T h e s a t e l l i t e w i l l be i n t e r r o g a t e d a bo ut 50 t imes a day, o r
about tw ice a t each pass o v e r a t r a c k i n g s t a t i o n . The l e n g t h of
t h e command s i g n a l a n d t h e t e l e r n e t e r e d d a t a w i l l vary accord ing
to a l t i t u d e , battery vo l t age and s a t e l l i t e t empera tu re which may
8/8/2019 Vanguard 3 Press Kit
4/14
- 4 -
vary f r o m -10 o f 50 d e g r e e s C.
w i l l be i n r a ng e of an i n d i v id u a l t r ac k i n g s t a t i o n a t each pass
i s about e i gh t minutes .
The average t i m e t he s a t e l l i t e
The s a t e l l i t e ' s d e si gn and m a t e r i a l s r u l e o ut m e t a l l i c i n t e r -
f e r e n c e w i t h the s e n s i t i v e c o i l . For t h i s r e as o n t h e t a p er e d t u be
and t h e t o p q u a r t e r of t h e s p h e r e were f a b r i c a t e d of f i b e r g l a s s a n d
a s b e s t o s p h e n o l i c r e s i n ,
During sezo_rld s t a g e bur nin g t i m e , t h e p l a s t i c nose cone cove r ing
t h e payload w i l l pop o f f . The s a t e l l i t e ' s f o u r a n t e n n a s g e q u a l l y
spaced around t h e s p h e r e ' s equ ato r and fo ld ed upward i ns id e t h e
cone, w i l l s p r f n g down i n t o p l a c e a n d l o c k .
Thickness o f t5 e t a p e r e d t u b e walls i s about ,026 i n c h e s ; t h e
s k in of t h e 20- inch sphere ranges f rom .O5O t o .026 inches . It
i s expected t h a t t h e t ube w i l l p rec ed e t h e sp he re i n f l i g h t , a t
l e a s t i n th e i n i t i a l o r b i t s , La te r wobb ling ( p re ces s ion ) o r
tumbl ing w i l l n o t i n t e r f e r e w i t h the experiment .
ENVIRONMENTAL EXPERIMENT - A more accurate knowledge of spaceenvi ronmenta l condi t ions i s e s s e n t i a l t o t h e d e s i g n o f f u t u r e
s a t e l l i t e s a nd manned s p a ce v e h i c l e s . T h i s s a t e l l i t e w i l l c a r r y
i n s t r u m e n t a t i o n to measure fo u r s p ec i f i c envi ronmen tal con d i t ion s ,
both on i t s su r f ace and wi th in th e sphe re. The re are t h r e e
measurements of t empera ture , t w o of s u r f a c e p e n e t ra t i o n, f o u r of
s u r f a ce e ro si on , and i n s t m e n t a t i o n to measure microm eteor i tebombardment,
. - .. . . . I__.. , , . - .-. ..,._I_.-- . I . .. . . , . . . .. .. "- ..".. ..I_..I ...
8/8/2019 Vanguard 3 Press Kit
5/14
- 5 -
Two thermistors (tiny thermomenters), mounted o n the inside
wall of the sphere, will provide a time history of the average
shel l temperature as well as its orbital fluctuations.
termistor will measure the internal temperature of the so lar X-ray -Environmental instrument compartment.
A third
Two pressure zones girdling the sphere will be sealed and
drained of enough air to make them partial vacuums.
zores are covered by about 20 percent of the satellite's shell.
differential pressure gauge connected between the zones will
indicate puncture of one o r both.
shel l will be telemetered as a change in length of one of the
telemeter charnels,
These pressure
A
Penetration of the magnesium
Erosion due to bombardment with dust, micrometeorites, ionsp
molecules, and atoms will be recorded by three metallic strips and
a photosensitive detector. Resistances of the chromium strip
erosion gauges will change as thei r surfaces change. The photo-
sensitive detector, a cadmium sulphide cell protected by an opaque
covering of Mylar plastic and deposited aluminum, will show a
resistance change as the covering is penetrated o r eroded. Erosion
measurements will be telemetered as lengths of telemetry channels
and will permit estimates of the erosion rates.
Four barium titanate type microphones will record micrometeorite
impact on the sphere's surfaceoand shaped and fed into a magnetic counter unit. This unit
continuously provides three decimal digits of the cumulative count
of impacts. The unit counts up to 1000 and then resets to zero.
The microphone output is amplified
. . . . . . . . . . .. . . . - . ..,
8/8/2019 Vanguard 3 Press Kit
6/14
- 6 -
X-RAY EXPERIMENT - S o l a r X-rays and t h e e f f e c t s t h e y haveon the ea r th ' s a tmosphe re i s the purpose of t h e t h i r d e x p e r i m e n t
i n t h i s Va n g u a r d s a t e l l i t e ,
The X-ray in st ru me nt at io n i s des igned t o determine t h emaximum v a r i a t i o n i n t h e i n t e n s i t y o f s o l a r X-ray r a d i a t i o n du r i ng
each o r b i t , The exper iment would t hus r ev ea l s ho r t t ime va r i a t i o n
i n t h e aver age X-ray emi ssio n.
i n t e n s i t y t hr ou gh ou t t h e d a y l i g h t p o r t i o n of f l i g h t w i t h a dynamic
range of a t l e a s t 1 0 angstroms, The io n iz a t io n chambers a r e
s e n s i t i v e t o wavelengths i n t he band 1 t o 8 angstroms.
I t would r e c o r d s o l a r f l a r e pe ak
I n s t r u m e n t a t i c n i n c l u d e s a n e l e c t r o m e t e r c i r c u i t f o r
ampl i fy ing t h e s i g n a l s g e ne r at e d i n t h e io n i za t i on chambers; a
peak reading memo@' d e vi c e; and a n o r b i t a l s w it c h c o n s i s t i n g
p r i m a r i l y of a l i g h t - s e n s i t i v e s o l a r c e l l . The memory d e v i ce w i l l
r e t a i n t h e maximum X-ray s i gn a l r ece iv ed du r ing one o r b i t . T h i s
memory core i s t h e c o n t r o l l i n g e le me nt i n an a ud io o s c i l l a t o r
which modulates the m i n i tr a c k t r a n s m i t t e r (108.00 MC) .w i l l be u se d i n a n o r b i t a l switching arrangement -- t h e c o r emodulat ing t h e t r a n s m i t t e r w i l l co nt ai n t h e maximum s i g n a l f rom
t he p reced ing o r b i t , while t h e second core w i l l be s t o r i n g d a t a
from t h e c u r r e n t o r b i t , , The r o l e s of th es e two core s w i l l be
r ev er se d a s t he s a t e l l i t e p as se s from da rkness i n to l i g h t . A t h i r d
co re w i l l t r a n s m i t i n s t a n t a n e o u s v a l u e s of r a d i a t i o n .
Two cores
8/8/2019 Vanguard 3 Press Kit
7/14
. - NATIONAL AERONAUTICS AND SPACE ADMINITRATIONWASHINOTON 25, D. C.
Hold f o r ReleaseU n t i l Launched
N o , 29-59
SATELLITE LAUNCHING VEHICLE 7
Two notable cha:?.ges f r o m previous Vanguard rockets mark
S a t e l l i t e L aun ch in g Veh i cl e 7 0
Although the f i r s t two st ag es remain th e same, th e t h i r d s t a g e
engine t h i s t ime was made by Hercules Powder Company's Allegany
B a l l i s t i c s Labora tDry, The s o l i d p r o p e l l a n t t h i r d s t a g e has a
h i gh e r e f f i c i e r c y than t h e one p r ev ious ly u sed; i t s burn ing t ime
i s 10 seconds longer. , The extended bur nin g time compensates f o r
t h e payload weight of 50 pounds -- more than t w i c e t h a t of formerVanguard instrument packages,
The t h i r d s t a g e casing, which weighs about 50 pounds, will not
sepa ra t e f rom the pay load a f t e r eng ine bu rn-out , It w i l l remain
a t t a c h e d t o t h e i n s t rumen t package t h roughou t t h e l i f e t im e of t h e
s a t e l l i t e , c r ea t in g a l a r g e r t a r g e t f o r o p t i c a l t r ac k er s ,The l a un c hi n g v e h i c l e i t s e l f i s approximately 72 f e e t l on g,
45 i n c h e s in diameter a t i t s b as es f i n l e s s , w i t h a gros s t ake -o ff
( loaded) weight of app rox ima tely 22,600 pounds.
f s pr ime con t r ac to r f o r t h e vehicle,
The Martin Co,
The l i qu id -p rope l l an t f i r s t s t a g e has a gimbal led engine
b u i l t by G e n e r a l E l e c t r i c Co, Its p r o p e l l a n t s a r e l i q u i d oxygen
and kerosene, T h r u s t i s about 28,000 pounds a t sea l e v e l .
8/8/2019 Vanguard 3 Press Kit
8/14
..
- 2 -
The second s t a g e a l s o i s a l i q u i d - p r o p e l l a n t r o c k e t , b u r n i n g
whi te fuming n i t r i c a c id and unsymmetr ica l d imethylhydraz ine , I t s
g imba l l ed eng ine and fue l t anks a r e made by Aerojet-General Corg,
Second-stage t h m s t i s about 8,000 pounds a t a l t i t u d e ,The second s tage conta ins t h e " b r a i n s " o f t h e e n t i r e l a un c hi n g
v e h i c l e -- t h e gu idance system, Minneapolis-Honeywell RegulatorC o o , A i r Associa tes , Des igners f o r Indus t ry, and t h e Martin Co.
provide t h e ve h i c l e Ps gu idance and con t ro l sy s tem, A lso i n t h e
second s tage i s a sp iming mechan i sm fo r t he t h i r d s t a g e ,
The t h i r d s t a g e i s a s o l i d - p r o p e l l a n t r o c k e t , c o n s i s t i n g of a
p l a s t i c c y l i n d r i c a l c a s e j a n o z z le j p r o pe l l a nt c ha rg e, and i g n i t e r ,
A l l egany Ba l l i s t i c s Labora to ry made the t h i r d s t a g e e ng in e i n SLV-7,
It gene ra t e s abou t 3,500 pounds o f t h r u s t , T h i s e n g i n e , o r i g i n a l l y
developed f o r the Vanguard programp i s e s s e n t i a l l y t h e s a m e u s e d
i n t h e t h i r d s ta ge of Thor-Able I11 which launched Explorer V I , ,
The f i r s t s t a g e burns f o r a b o u t 140 seconds, Second st a g e
i g n i t i o n oc cu rs w i t h in a s p l i t second a f t e r f i r s t - s t a g e s e p a r a t i o n ,
During second-stage burning, a p l a s t i c nose cone enshrouding t h e
payload pops o f f a t p l us 172 seconds , Second s t ag e burns out a t
about plus 260 seconds,
Next comes a c o a s t i n g p e r i o d o f about 260 seconds. A t t h e
end of t h i s t i m e t h e v e h i c l e s h ou l d be i n t h e p r op e r a n g l e of
" a t t i t u d e , " and a l t i t u d e t o pu t t h e t h i r d s t a g e a n d a t t a c h e d p a y -
l o ad i n a n orbital p a t h , During t h i s p e r i o d , t h i r d - s t a g e s p i n - u p
s t a r t s a t abou3 p l u s 500 seconds. The t h i r d s t a g e i g n i t e s a t about
8/8/2019 Vanguard 3 Press Kit
9/14
- 3 -
520 seconds and burns out a t about 560 s e co n ds o The s a t e l l i t e ,
w i t h i t s permanently a t ta che d burned-out th i rd- s ta ge cas i ng has
now a t t a i n e d s u f f i c i e n t v e l o c i t y t o c a r r y i t i n t o o r b i t ,
Robert W e Stroup, of the S a t e l l i t e A p p l i c a t i o n s S y s t e m s
Div i s ion a t NASA's Goddard Space Flight Center, i s p r o j e c t o f f i c e r
for th e payload. , Experiments were developed by s c i e n t i s t s a t t h e
U. S, Naval Research Laboratory and Goddard Space F l i g h t Center. ,
8/8/2019 Vanguard 3 Press Kit
10/14
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
WASHINOTON 25, 0 . C.
Hold f o r ReleaseUnti l Launched
T E L E M E T RY A N D T R A C K I N G
No. 49-59
The Vanguard sa te2l i te w i l l be t r acked by 10 NASA m in it ra ck
s t a t i o n s . T h e y a r e l o c a t e d a t Blossom Po in t, Maryland; San tia go ,
Chi le ; An tafa gas ta, Chi le; Lima, Peru; Q ui to , Ecuador; Grand Turk
Isle, Bahamas; Sa n DfegD, Ca li fo rn ia ; Es sel en Park, South Afr ica;
and Woomera, Australia, A 1 1 b u t t h e South African and Grand Turk
s t a t i o n s w i l l . i r t e r r r g a t e the s a t e l l i t e and a r e e quipped w i t h
ground magnetometers e
The s a t e l E l ' ; ~ ' $ r a c k i n g s i g n a l w i l l be a s t ea dy one on 1 0 8 ~ 0 0
megacycles, with a pow~gr of 80 m i l l i w a t t s . When in t er r o g at ed by a
t r a c k i n g s t a t l o n , t h e 188 mc s i g n a l w i l l be modulated by X-ray and
environmental telemebry d a t a ,
Magnetic SfeLd Peasurements w i l l be r e l ayed ove r a 1.08~03 nc
T h i s t r a n s m i t t e r will o p e r a t er a n s m i t t e r w i t h a power of 80 m w ,
only on command f r o m a g s o u n d s t a t i o n .
Baker-Narn t r a c k i n g cameras w l l l o p t i c a l l y t r a c k t h e Vanguard
s a t e l l i t e , O p t i c al t r a c k i n g s t a t i o n s a r e l o c a t e d a t Organ P ass , New
Mexico; Ol if an ts fo ct ef n, South Afr ica; Woomera, Au st ra l i a; Cadiz ,
Spain; Tokyo, Ja2.an; Nani-tal, India ; Arequipa , Peru ; Shi raz , I ran ;
Curacoa, N.W,I,; Hebe So-md, Flo r id a ; V i l l a Do lo res, Argen t ina ; and
Haleakala, Hawaii, O p t i c a l t r a c k i n g w i l l be supervised by t h e
Smithsonfan Astrophysical Observ atory, Cambridge Massach usetts, under
a grant f rom t h e NASAo
___. .I_ " - _ ~ l l I-. . . I ._ . - . ... . , ^ . . . .. .. . . . .. . ' . . ... . -.
8/8/2019 Vanguard 3 Press Kit
11/14
, NATIONAL AERONAUTICS ANDSPACE ADMINISTRATION
WASHINGTON 2% 0 . C.
Ho8i.i f o r ReleaseUntil Launched
PROJECT VANGUARD BACKGROUND
No, 59-59
On J u l y 2 9 , 1955, the White House announced t h a t t h e United
S ta t e s p l anned t o launch e a r t h s a t e l l i t e s as p a r t of t h i s coun t ry ' s
c o n t r i b u t i o n t o the International Geophysical Year which ended
fo rma l ly on December 31, 1958,
t o t h a t p a r t of t he s a t e l l i t e program which was under the manage-
ment of the Chief of Naval Rese arch, The Naval Research La bor ato ry
(NRT;) i n Washington, D e C. had r e s p o n s i b i l i t y f o r t e ch n i c a l a s -
Project Vanguard i s the name assigned
p e c t s of the program,
Pr oj ec t Vanguard was t ra ns fe rr e d t o the National Aeronautics
and Space Administration by Executive Order on October 1, 1958.
The t r a n s f e r a f f e c t e d 156 NRL s c i e n t i s t s and t e c h n o l o g i s t s , i n -
c lud ing D r . John P, Hagen, Pr oj ec t Vanguard d i r e c t o r .
S i x f i r i n g s o f the Vanguard tes t vehic le and s ix f i r i ngsof t he Vanguard s a t e l l i t e l aun ch i w veh i c l e have been made t o
d a t e , s t a r t i n g wi t h t h e May 1, 1957$ experiment. Two Vanguard
s a t e l l i t e s have a ch ie ve d o r b i t , A three-and-one-quarter pound
t e s t s p h e r e was launched by TV-4 on March 17, 1958 ( i t s 50-pound
t h i r d s t age rocke t cas ing also went i n t o o r b i t ) , Vanguard I , a83
i t was c h r i s t e n e d , i s s t i l l a l o f t , w i t h an expec ted l i f e t ime
of hundreds of years.
- . -. . . ..., . . . -_._-.I __I.. ~ ~ . -^ . . . . -. . . ... . _. . . . .
8/8/2019 Vanguard 3 Press Kit
12/14
- 2 -
SLV 4, launched February 17, 1959, p laced about 70 pounds
i n o r b i t - = a 21$-pound, 20- inch d iameter sphere plus t h e t h i r d
s t age rocke t ca s ing wh ich was t r e a t e d with spec ia l coaGing t o
f a c i l i t a t e o p t i c a l t r a c k i n g . The s a t e l l i t e was named Vanguard 11.The pr imary objec t ive of t h i s experiment was t o measure t h e
d i s t r i b u t i o n amd movement of c loud cover over t h e d a y l i g h t p o r t i o n
o f t h e s a t e l l i t e ' s e q ua t or i a l o r b i t and r e l a t e i t t o t h e o v e r a l l
meteorology of t h e ea r t h , The c loud-cover d a t a a r e now being
reduced ,
Today's experiment, re pr es en ts a complet ion by NASA of the
Vanguard I G Y s e r i e s , D a t a f r o m t h e s a t e l l i t e w i l l be made a v a i l -
a b l e t o t h e 66 n a t i o n s of t h e I G Y,
I n a l l , 15 r o c k e t v e h i c l e s w ere p r e pa r ed f o r t h e Vanguard
Program. Thus far, 1 4 h av e be en f i r e d i n c l u d i n g t o d a y t s l a un c hi n g,
One t e s t v e h i c l e (TV-2 backup) was given t o t h e Smithsonian
I n s t i t u t i o n f o r e x h i b i t purposes. F o r a d d i t i o n a l d e t a i l s of t h e
comple te Vanguard program, r e f e r t o r e l e a se No. 3.
8/8/2019 Vanguard 3 Press Kit
13/14
NATIONAL AERONAUTICS AND SPACE ADMlNlSTRATbON
WASHINOTON 25. D. C.
Hold f o r ReleaseUntil Launched
MEN BEHIND THE EXPERIMENTS
No. 69-59
Following are brief biographies of the principal experimentors
in this Vanguard experiment:
1 Magnetometer
DR, JAMES P o HEPPNER - A geophysicist in the Space Sciences
Division of NASA's Goddard Space Flight Center, Dr. Heppner wrote
his doctoral thesis on magnetic field disturbances. Before joining
the NASA last December, he was active in sounding rocket research
at the U, S o Naval Research Laboratory, He was graduated from the
University of Minnesota in 1948, and earned a master' s degree in
1950, and a doctorate in 1954, both from the California Institute
of Technology.
2. Environment 1
HERMAN E, LA GOW - chief of planetary atmospheres programs atNASA's Goddard Space Flight Center, is responsible fo r the space
environment experiment,
and was project leader in previous Project Vanguard experiments.
He was graduated in 1943 from Bayl or University and has done graduate
work in physics and mathematics at George Washington Universityand the University of Maryland,
He was employed at NRL until last December
8/8/2019 Vanguard 3 Press Kit
14/14
- 2 -
3 . X-Ray
DR, HERBERT FRIEDMAN- s u p e r i n t e n d e n t of t he Atmosphere andAst rophys ics Div is ion a t t h e U. S. Naval Research Laboratory,
was gra duat ed from Brooklyn College i n 1936 and rece ived h i s
doc to ra t e f rom Johns Hopkins Univ ers i ty i n 1940,
i n a tmosphe re r e sea rc h w i t h r o c k e t s , p a r t i c u l a r l y i n t h e f i e l d of
s o l a r - e a r t h r e l a t i o n s h i p s ,
He
H e s p e c i a l i z e s
4 , NASAss p r o j e c t o f f i c e r f o r t h i s Vanguard p aylo ad i s
ROBERT W. STROUP, S e n i or P ro j e c t C oo rd in at or i n t h e S a t e l l i t e
App l i ca t i ons Systems Division, Goddard Space F l i g h t Center. H e
was employed a t NRL u n t i l l a s t December and i nv ol ve d i n many
previous Vanguard experiments .College, Davidson, North Carolina, w i t h a Bachelor of Science degree
i n ph ys ic s i n 1948.
H e was graduated f rom Davidson
. . . . . . . . . , , . ."_ . ... . . ,. .- _" , -.. ~ . .- __I_.._