Space Brief 7 Apr 2025
Today's highlights include new ESA Euclid data, upcoming Blue Origin flight, and multiple Starlink launches, delivering fresh satellite tracking opportunities.
LEMUR-2-PETERG (42841)
COSPAR: 2017-042S | Alt Name: Lemur-2-PeterG
Image
Additional Sources
Launch Details
Launch Date
July 14, 2017
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-2-1A
Orbital Elements
NORAD ID
42841
International Designator
2017-042S
Epoch
Sat, 04 Jul 2026 06:05:32 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
97.40°
Right Ascension
10.32°
Eccentricity
Calculating...
Argument of Perigee
274.08°
Period
93.83 min
Mean Motion
15.35 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
LEMUR-2-PETERG
Alternative Name
Lemur-2-PeterG
Type
Payload
Status
Operational
Owner
SPIRE
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 42841U 17042S 26185.25385165 .00037047 00000-0 11012-2 0 9998
2 42841 97.3995 10.3194 0002786 274.0784 86.0140 15.34660691491055
Source: Celestrak
Summary
LEMUR-2-PETERG is a CubeSat (3U) satellite manufactured by SPIREG and owned by Spire. It was launched on July 14, 2017, from the Taiyuan Satellite Launch Center using Soyuz-2-1A launch vehicle. The satellite measures 0.3 meters in length, has a diameter of 0.1 meters, and spans 0.3 meters. Its dry mass is 4 kilograms, which matches its launch mass. Equipped with STRATOS (GPS radio occultation payload), SENSE (AIS-receiver), and AirSafe (ASD-B payload, starting from #78), the satellite uses solar cells and batteries for power supply. The shape of LEMUR-2-PETERG is box-like, and its equipment includes payloads named Lemur FM47.
Physical Characteristics
Length
0.3
Diameter
0.1
Span
0.3
Dry Mass
4
Launch Mass
4
Shape
Box
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Lemur FM47
Purpose
Unknown
Mission
Unknown
Manufacturer
SPIREG
Life Expectancy
Unknown
Bus
Cubesat 3U
Configuration
CubeSat (3U)
Motor
None
Equipment
STRATOS (GPS radio occultation payload), SENSE (AIS-receiver), AirSafe (ASD-B payload, #78 and later)
Power System
Solar cells, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
Starlink Hits 10,000 Satellites in Orbit, X Report 17 Mar 2026
How many Starlink satellites are in orbit in 2026? SpaceX passed 10,000 after the Starlink 17-24 launch, with 10,020 in orbit and 11,529 launched.
SpaceX Wins $178.5M Space Force Missile Tracking Contract | KeepTrack Space Brief
SpaceX awarded $178.5M Space Force contract for missile tracking satellite launches beginning 2027. Pentagon also extends GPS modernization support with $45M Raytheon order.
Pentagon Pulls the Plug on GPS OCX | The $8 Billion Ground System That Never Worked
On April 17, 2026, the U.S. Space Force officially cancelled the Next Generation Operational Control System after sixteen years of development, cost overruns, and testing failures. The $8 billion program was supposed to unlock the military's encrypted GPS signal. Instead, the satellites are flying with capabilities the ground can't command.
Andøya Spaceport
Europe's Arctic gateway to orbit. How Norway's Andøya Spaceport is positioning itself as the continent's answer to launch congestion - and what the failed Isar Aerospace test flight means for the road ahead.
Space Brief 7 Mar 2025
Key insights from the latest SpaceX Starship breakup, the establishment of a new satellite mobile service, and enhancing America's missile shield capabilities through satellites.
SpaceX Targets 600th Falcon Booster Landing on Starlink 17-22 | KeepTrack X Report
SpaceX attempts its 600th Falcon 9 booster landing during the Starlink 17-22 mission, adding 25 satellites from Vandenberg SFB.
X Report 18 Apr 2025
Cape Canaveral launch site activities intensify; SpaceX explores new subscription model for Trump's Golden Dome.