Launch Date
July 13, 1995
Launch Site
Launch Pad
LC39B
Launch Vehicle
Space Shuttle
NORAD ID
23615
International Designator
1995-035D
Epoch
Fri, 03 Jul 2026 20:26:37 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
15.65°
Right Ascension
341.53°
Eccentricity
Calculating...
Argument of Perigee
183.40°
Period
1432.81 min
Mean Motion
1.01 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
IUS R/B(2)
Alternative Name
IUS-26 SRM-2
Type
Status
Owner
GSFC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 23615U 95035D 26184.85182337 -.00000289 00000-0 00000-0 0 9997
2 23615 15.6467 341.5308 0009328 183.3956 353.1122 1.00501972113578
Source: Celestrak
Length
2.1
Diameter
1.6
Span
2.1
Dry Mass
1100
Launch Mass
3800
Shape
Sphere + Cone
Radar Cross Section
5.3271
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Orbus 6S
Purpose
Unknown
Mission
Unknown
Manufacturer
CSD
Life Expectancy
Unknown
Bus
Orbus 6
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
Learn more about satellites and other related topics.
The satellite industry's biggest operators are betting on multi-orbit architectures that combine LEO, MEO, and GEO into unified networks. A San Francisco startup called Contrivian thinks they've overcomplicated the problem, and the physics might be on its side.
Today's brief covers the historic lunar touchdown by Firefly Aerospace's Blue Ghost lander, highlights in military space activity, and a reflection on Pearl Young's pioneering legacy at NASA.
Starlink satellites fired their thrusters to dodge a collision roughly 300,000 times in 2025, about 822 times a day. Behind that number is a fragile, half-automated system of warnings, probabilities, and judgment calls that decides which close approaches are worth a maneuver and which are just noise.
At 7:33 on the morning of 18 June 1983, a 32-year-old astrophysicist named Sally Ride rode Challenger off Pad 39A and became the first American woman in space. She got there two decades after the Soviets, and only after months of being asked whether spaceflight would damage her reproductive organs and whether she planned to cry.
SpaceX CAS500-2 launch success: Falcon 9 flew May 3 at 0700 UTC from Vandenberg with South Korea's imaging satellite and 44 rideshare payloads.
SpaceX is pushing to launch Starship from Cape Canaveral before end of 2026, with contractors ramping work at LC-39A.
Major breakthroughs as SpaceX prepares to bring astronauts home and multiple launches unfold this week.
SpaceX marks a successful launch of 21 Starlink satellites, follows up after Starship explosion, and influences Qantas flights amid a busy operational schedule.
