Higher Education

 https://welib.org/md5/5709795e2f5296d0efb634a16cce16c1

Kosmos 607

 1973-087A

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Kosmos-607 was a Zenit-4MK flight in Nov 1973. The Kettering group classified it as probable two tone telemetry but noted that it might have been a Morse type (Zenit-4M).

Kosmos-607
Date	Time	Event	Orbit
1973 Nov 10	1238:27	Launch by 11A57	NIIP-53
	1243	Blok-I burn
	1247	Blok-I sep
1973 Nov 11	1056	(approx)	89.94 202 x 340 x 72.8
	1200		90.0 204 x 341 x 72.8
1973 Nov 12	1055		89.92 204 x 336 x 72.8
1973 Nov 14	1054		89.92 203 x 337 x 72.8
		Raise apogee
1973 Nov 15	1054		90.14 208 x 353 x 72.8
1973 Nov 17		Lower orbit
1973 Nov 19	0918		89.62 171 x 339 x 72.8
1973 Nov 20			89.7 173 x 344 x 72.8
1973 Nov 21	0737		89.59 171 x 337 x 72.8
		Engine sep 87D
1973 Nov 22	0725?	Retrofire
	0735?	PO sep
	0739?	Entry
	0756?	Landed

Kosmos 1597

 1984-099A

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Kosmos-1597
Date	Time	Event	Orbit
1984 Sep 13	1025	Launch by Soyuz	Plesetsk
	1029	Blok-I burn
	1033	Blok-I sep
1984 Sep 13			89.05 211 x 243 x 82.3
1984 Sep 21			88.88 204 x 233 x 82.3
1984 Sep 26
	0648?	Deorbit
	0658?	PO sep
	0704?	Entry
	0721?	Landed

Spaceflight: February 1989

 https://welib.org/md5/af2546fc4ef06b7c560df51043c741ca

Aviation Week: April 24,1989

 https://welib.org/md5/ac52f437fa0c735e8486bdeef915676b