86 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1962 



Special Report No, 86, February 21, 1962— Continued 



Miller ; and 1959 d, for Dec. 31, 1960-July 1, 1961, by J. Weingarten, com- 

 piled by I. G. Izsak. 

 Special Report No. 87 (C-25), February 23, 1962. 



Catalogue of satellite observations: Satellites 1958 Alpha (Explorer I), 1958 

 /31 (carrier rocket. Vanguard I), 1959 1 (Vanguard II), 1959 a2 (carrier 

 rocket. Vanguard II), 1959 Eta (Vanguard III), and 1959 tl (Explorer 

 VII) , for Jan. 1-June 30, 1961, by D. V. Mechau. 

 Special Report No. 88 (C-26) , February 23, 1962. 



Catalogue of satellite observations: Satellites 1960 tl (Echo I) and 1960 t2 

 (carrier rocket, Echo I), for Jan. 1-June 30, 1961, by D. V. Mechau. 

 Special Report No. 89 (C-27), February 23, 1962. 



Catalogue of satellite observations: Satellites 1960 |1 (Explorer VIII), for 

 Nov. 3, 1960-June 30, 1961; 1961 81 (Explorer IX), for Feb. 16-June 30, 

 1961; and 1961 i?l (Explorer XI), for April 27-June 30, 1961, by D. V. 

 Mechau. 

 Special Report No. 90, Mar. 14, 1962. 



On the critical inclination in satellite theory, by I. G. Izsak. 

 Special Report No. 91 (P-3) , April 20, 1962. 



Catalog of precisely reduced observations : Satellites 1958 S2, for Dec. 1-17, 

 1958 ; 1959 a2, for Jan. 1-Dec. 31, 1960 ; and 1959 Eta, for Jan. 1-June 30, 

 1960. 

 Special Report No. 92 (E-1), April 23, 1962. 



Satellite orbital data : Satellites 1958 S2, for Dec. 7-14, 1959, by Y. Kozai ; 

 1959 al, for Feb. 21-Dec. 30, 1959, by P. Stern and M. Gutierrez; 1959 

 a2, for Mar. li^May 28, 1959, by P. Stern ; 1959 Eta, for Sept. 23-Dec. 30, 

 1959, by R. Nigam and P. Stem ; 1960 1 2, for Sept. 11, 1960-Mar. 12, 1961, 

 by I. Izsak and J. "Weingarten ; 1960 Omicron, for Nov. 13-15, 1960, by J. 

 Weingarten; and 1960 Sigma, for Dec. 8-10, 1960, by J. Weingarten, 

 compiled by I. G. Izsak. 

 Special Report No. 93, May 4, 1962. 



Satellite orbital data : SateUites 1958 Alpha, for July 1, 1961-Jan. 1, 1962, 

 by B. Miller ; 1959 tl, for July 1, 1961-Jan. 1, 1962, by M. Gutierrez ; 1960 

 a, for July 1, 1961-Jan. 1, 1962, by M. Hall; and 1961 51, for July 2, 

 1961-Jan. 5, 1962, by J. Weingarten, compiled by I. G. Izsak. 

 Special Report No. 94, May 23, 1962. 



On the motion of Explorer XI around its center of mass, by G. Colombo. 

 Special Report No. 95 (P^), June 18, 1962. 



Catalog of precisely reduced observations : Satellites 1959 Eta, for July 1- 

 Dec. 31, 1960; and 1960 t2, for Jan. 1-June 30, 1961, prepared by K. 

 Haramundanis. 

 Special Report No. 96 (C-28) , June 25, 1962. 



Catalogue of satellite observations: Satellites 1958 Alpha (Explorer I), 

 1959 al (Vanguard II), 19.59 Eta (Vanguard III), and 1959 tl (Explorer 

 VII), for July 1-Dec. 31, 1961 ; and 1959 a2 (carrier rocket. Vanguard II), 

 for July 1-27, 1961, by B. MiUer. 

 Special Report No. 97 ( C-29) , June 25, 1962. 



Catalogue of satellite observations: Satellites 1960 tl (Echo I) and 1960 

 t2 (carrier rocket, Echo I), for July 1-Dec, 31, 1961, by B. Miller, 

 Special Report No. 98 (C-30) , June 25, 1962. 



Catalogue of Satellite observations: Satellites H (Explorer VIII) and 

 1961 51 (Explorer IX), for July 1-Dec. 31, 1961; vl (Explorer XI), for 

 July 1-Sept. 28, 1961; and 1961 ol (Transit 4a) and 1961 o2 (Injun Solar 

 Radiation) , for June 29-Dec. 31, 1961, by B. Miller. 



