SECRETARY’S REPORT 105 
Briaas, R. B., and Stowey, J. W. An iterative method of orbit determination 
from three observations of a nearby satellite. Spec. Rep. No. 27, pp. 1-8, 
June 30, 1959. 
Buus, H. P. Moonwatch catalogue, October, November, and December, 1958. 
Spec. Rep. No. 21, pp. 13-36, Feb. 27, 1959. 
Buus, H. P., and CAMPBELL, L., Jk. Moonwatch catalogue, May through June, 
1958. Spec. Rep. No. 14, pp. 1-21, July 15, 1958. 
Moonwatch catalogue, July and August, 1958. Spec. Rep. No. 18, pp. 
23-44, Oct. 4, 1958. 
Moonwatch catalogue, September 1958. Spec. Rep. No. 20, pp. 19-46, 
Jan. 5, 1959. 
CLarkE, J. B. Technical parameters of Satellites 1958 Delta and 1958 Epsilon. 
Spec. Rep. No. 18, pp. 3-4, Oct. 4, 1958. 
Davis, R. J. Timing satellite observations. Spec. Rep. No. 14, pp. 26-31, 
July 15, 1958. 
Progress report on the planning of an artificial satellite containing an 
astronomical telescope. Spec. Rep. No. 20, pp. 9-12, Jan. 5, 1959. 
Hawkins, G. 8S. A satellite meteor trap. Spec. Rep. No. 19, pp. 6-8, Dec. 6, 
1958. 
Henizr, K. G. Status of the photographic satellite tracking system. Spec. Rep. 
No. 14, pp. 22-25, July 15, 1958. 
JAccHIA, L. G. The descent of Satellite 1957 Beta One. Spec. Rep. No. 15, 
pp. 1-13, July 20, 1958. 
—-—. The earth’s gravitational potential as derived from Satellites 1957 
Beta One and 1958 Beta Two. Spec. Rep. No. 19, pp. 1-5, Dee. 6, 1958. 
An empirical formula for satellite ephemerides near the end of their 
lifetime. Spec. Rep. No. 20, pp. 1-4, Jan. 5, 1959. 
The diurnal effect in the orbital acceleration of Satellite 1957 Beta 
One. Spec. Rep. No. 20, pp. 5-8, Jan. 5, 1959. 
Jacouia, L. G., and Bricas, R. HE. Orbital acceleration of Satellite 1958 Beta 
Two. Spee. Rep. No. 18, pp. 9-12, Oct. 4, 1958. 
Kozat, Y. The earth’s gravitational potential derived from the motion of Satel- 
lite 1958 Beta Two. Spec. Rep. No. 22, pp. 1-6, Mar. 20, 1959. 
On the effects of the sun and the moon upon the motion of a close 
earth satellite. Spec. Rep. No. 22, pp. 7-10, Mar. 20, 1959. 
Lreonarp, A. 8. Determination of the orbit of Satellite 1958 Beta One. Spec. 
Rep. No. 27, pp. 9-15, June 30, 1959. 
McCrosxry, R. . A suggested rocket experiment for determination of atmos- 
pheric densities and winds at extreme heights. Spec. Rep. No. 20, pp. 13-16, 
Jan. 5, 1959. 
PETERSON, C. M. Communications center of the optical satellite tracking pro- 
gram. Spec. Rep. No. 18, pp. 5-8, Oct. 4, 1958. 
ScHrIine, G. F., and WuHitTnery, C. A. Atmospheric densities from Explorer IV. 
Spec. Rep. No. 18, pp. 138-22, Oct. 4, 1958. 
ScHizuine, G. F., WuHirney, C. A., and ForKart, B. M. Preliminary note on 
the mass-area ratios of Satellites 1958 Delta One and 1958 Delta Two. 
Spec. Rep. No. 14, pp. 32-34, July 15, 1958. 
Treske, R. G. Positions of Satellite 1958 Alpha during the first 1,400 revolu- 
tions. Spec. Rep. No. 17, pp. 1-173, Sept. 5, 1958. 
Veis, G. The orbit of Satellite 1958 Zeta. Spec. Rep. No. 23, pp. 1-80, Mar. 
30, 1959. 
