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Canadarm2 grapples the first segment of the ISS' Integrated Truss Structure
NamesSpace Transportation System-109
Mission typeISS assembly
COSPAR ID2002-018A Edit this at Wikidata
SATCAT no.27413
Mission duration10 days, 19 hours, 43 minutes, 38 seconds
Distance travelled7,240,000 kilometers (4,500,000 mi)
Orbits completed171
Spacecraft properties
SpacecraftSpace Shuttle Atlantis
Launch mass116,609 kilograms (257,079 lb)[1]
Landing mass91,016 kilograms (200,657 lb)[1]
Payload mass13,132 kilograms (28,951 lb)
Crew size7
Start of mission
Launch date8 April 2002 20:44:19 (2002-04-08UTC20:44:19Z) UTC
Launch siteKennedy LC-39B
End of mission
Landing date19 April 2002 16:26:57 (2002-04-19UTC16:26:58Z) UTC
Landing siteKennedy SLF Runway 33
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude155 kilometres (96 mi)
Apogee altitude225 kilometres (140 mi)
Inclination51.6 degrees
Period88.3 minutes
Docking with ISS
Docking portPMA-2
(Destiny forward)
Docking date10 April 2002 16:05 UTC
Undocking date17 April 2002 18:31 UTC
Time docked7 days, 2 hours, 26 minutes

In front, (L-R): Stephen N. Frick, Ellen L. Ochoa, Michael J. Bloomfield; In the back, (L-R): Steven L. Smith, Rex J. Walheim, Jerry L. Ross and Lee M. E. Morin.
← STS-109
STS-111 →

STS-110 was a Space Shuttle mission to the International Space Station (ISS) on 8–19 April 2002 flown by Space Shuttle Atlantis. The main purpose was to install the S0 Truss segment, which forms the backbone of the truss structure on the station.


Position Astronaut
Commander Michael J. Bloomfield
Third and last spaceflight
Pilot Stephen N. Frick
First spaceflight
Mission Specialist 1 Rex J. Walheim
First spaceflight
Mission Specialist 2 Ellen L. Ochoa
Fourth and last spaceflight
Mission Specialist 3 Lee M. E. Morin
Only spaceflight
Mission Specialist 4 Jerry L. Ross
Seventh and last spaceflight
Mission Specialist 5 Steven L. Smith
Fourth and last spaceflight

Mission highlights[edit]

Illustration of the International Space Station after STS-110

The main purpose of STS-110 was to attach the stainless steel S0 Truss segment to the International Space Station (ISS) to the Destiny Laboratory Module. It forms the backbone of the station to which the S1 and P1 truss segments were attached (on the following missions STS-112 and STS-113, respectively).

STS-110 also delivered the Mobile Transporter (MT), which is an 885 kilograms (1,951 lb) (1,950 lb) assembly that glides down rails on the station integrated trusses. The MT was designed and manufactured by Astro Aerospace in Carpinteria, CA. During the next shuttle mission, STS-111, the Mobile Base System (MBS) was mounted to the MT. This Mobile Servicing System (MSS) allows the Canadarm2 to travel down the length of the installed truss structure.

Flight Day 1: Launch[edit]

After a launch scrub on 4 April 2002 due to a hydrogen leak, Space Shuttle Atlantis successfully launched on 8 April 2002, from Launch Complex 39B. The countdown on 8 April encountered an unscheduled hold at the T-5-minute mark due to data dropouts in a backup Launch Processing System. The Launch Processing System team reloaded the required data and the countdown resumed. Liftoff occurred with 11 seconds remaining in the launch window.[2]

STS-110 was the first shuttle mission to feature the upgrade Block II main engines, which featured an "improved fuel pump...a stronger integral shaft/disk, and more robust bearings". The intent of the upgrade was to increase the flight capacity of the engines, while increasing reliability and safety.[3]

With the launch of Atlantis, mission specialist Jerry Ross became the first human to have traveled to space seven times.[4]

Attempt Planned Result Turnaround Reason Decision point Weather go (%) Notes
1 4 Apr 2002, 5:17:51 pm Scrubbed Technical 4 Apr 2002, 9:27 am 60% Leak developed in a hydrogen fuel vent line[5]
2 8 Apr 2002, 4:39:31 pm Success 3 days, 23 hours, 22 minutes


Mission Spacewalkers Start – UTC End – UTC Duration Mission
35. STS-110
Steven Smith
Rex Walheim
11 April 2002
11 April 2002
7 h, 48 min Installed S0 Truss on Destiny
36. STS-110
Jerry Ross
Lee Morin
13 April 2002
13 April 2002
7 h, 30 min Continued S0 Truss install
37. STS-110
Steven Smith
Rex Walheim
14 April 2002
14 April 2002
6 h, 27 min Reconfigure Canadarm2 for S0 truss
38. STS-110
Jerry Ross
Lee Morin
16 April 2002
16 April 2002
6 h, 37 min Install future EVA hardware


See also[edit]


Public Domain This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration.

  1. ^ a b [1] "STS-110 Press Kit" (archived from
  2. ^ "NASA Mission Archives STS-110". National Aeronautics and Space Administration. Retrieved 8 April 2012.
  3. ^ "MSFC-0200213". Marshall Space Flight Center. Archived from the original on 15 June 2011. Retrieved 28 November 2009.
  4. ^ "STS-110 Video Highlights". National Space Society. Retrieved 28 November 2009.
  5. ^ "Propellant leak at pad forces launch delay". CBS News. Retrieved 30 August 2009.

External links[edit]