2026-244Latest orbital launch: Falcon 9 · Starlink Group 15-16 · Oct 27, 2026 · VandenbergLaunch record →
sci-techmaventhe history of spaceflight, in data
  1. Home
  2. Launches
  3. 1999
  4. 1999-040
// orbital launch

OV-102 IUS deploy

Space Shuttle launch from Cape Canaveral & Kennedy (United States) on July 23, 1999, carrying 2 payloads. GCAT records the launch as a success.

July 23, 1999 · 04:31 UTCLaunch 1999-040Launch no. 4,330 in the log
SpaceportCape Canaveral & Kennedypad LC39B
OutcomeSuccess
Launch agencyNASA JSCUnited States

Flight

Date and time (UTC)
July 23, 1999, 04:31
Launch designation
1999-040
Mission
OV-102 IUS deploy
Flight name
Chandra
Vehicle flight ID
STS-93

Orbit and payload

Initial apogee
146,417 km
Payload mass to orbit
125.4 t
Payloads
2
GCAT launch code
OS

Payloads

PayloadDesignationOwnerMission typeMassFate
Columbia (STS-93)1999-040ANORAD 25866NASA Johnson Space Flight CenterHuman spaceflight95.2 tLanded · Jul 28, 1999
Chandra X-ray Observatory1999-040BNORAD 25867NASA Marshall Space Flight CenterAstronomy5,677 kgIn orbit

Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.