UNITED STATES AIR FORCE

Delta II | ARGOS

SUCCESS Delta II →
Feb 23, 1999 at 10:29 UTC
Low Earth Orbit Planetary Science Vandenberg SFB, CA, USA 100% success
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Live Orbit
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Mission Control3D trajectory · Live telemetry · AI narrator · Booster tracking
PADSpace Launch Complex 2W
SITEVandenberg SFB, CA, USA →
ORBITLow Earth Orbit
TYPEPlanetary Science

ARGOS (Advanced Research & Global Observation Satellite) is a testbed and demonstration program for advanced remote sensing technologies for the US Air Force’s Space Test Program (STP). ARGOS’s primary objective is to fly and operate advanced payloads that include two technology demonstrations and seven experiment payloads for global and celestial observation. ARGOS also has a goal of three years of on orbit operations to demonstrate and collect science data for the Earth’s global environment and top priority military space programs.

VEHICLE
Delta II
MISSION
ARGOS
MISSION TYPE
Planetary Science
TARGET ORBIT
Low Earth Orbit
COUNTRY
USA
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 4bed1cfa-d8ac-4a68-86cd-d5dfd5eb0539
Reported date: Feb 23, 1999 at 10:29 UTC
Last synced: 17 minutes ago
This launch date and time are confirmed by the launch provider. Countdown is active.
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MANUFACTURER
United Launch Alliance
VARIANT
7920-10
FLIGHTS
9
SUCCESSES
9
SUCCESS RATE
100%

Delta II is an American space launch system developed by McDonnell Douglas, now part of the Delta rocket family operated by United Launch Alliance. With more than 150 missions and a nearly perfect track record, Delta II has established itself as one of the most successful orbital launch systems.

When is the Delta II | ARGOS launch?
The Delta II | ARGOS is scheduled for Tuesday, February 23, 1999 at 10:29 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for ARGOS?
The Delta II | ARGOS mission uses the Delta II rocket, manufactured by United Launch Alliance. The Delta II has flown 9 times with a 100% success rate.
Where is the Delta II | ARGOS launching from?
The launch takes place from Space Launch Complex 2W at Vandenberg SFB, CA, USA.
What orbit is ARGOS going to?
The ARGOS mission is targeting Low Earth Orbit.
Who is launching ARGOS?
The Delta II | ARGOS is operated by United States Air Force.
Can I watch the Delta II | ARGOS launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
Mar 29, 2026 01:16 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 01:16 UTC
Launch date set: Feb 23, 1999 at 10:29 UTC
NET (No Earlier Than) confirmed by United States Air Force
Mar 29, 2026 01:16 UTC
Launch completed successfully
Updated via Launch Library 2
Last data sync: 17 minutes ago
Launch Library 217 minutes ago
Launch ID: 4bed1cfa-d8ac-4a68-86cd-d5dfd5eb0539
Open-Meteo Weather5 days ago
Pad weather at 34.76, -120.62

Mission Profile

ARGOS was a Delta II 7920-10 mission operated by United States Air Force that lifted off from Space Launch Complex 2W, Vandenberg SFB, CA, USA on February 23, 1999. The flight carried its payload on a planetary science mission to Low Earth Orbit. The launch was a success.