$4.16B Golden Dome Contract Awarded to SpaceX | KeepTrack X Report
SpaceX wins a $4.16B Pentagon contract for missile-tracking satellites, while hitting its 50th Starlink launch of 2026 in a landmark May.
LANDSAT 1 (ERTS 1) (06126)
COSPAR: 1972-058A | Alt Name: ERTS 1
Image
Additional Sources
Launch Details
Launch Date
July 23, 1972
Launch Site
AFWTR
Launch Pad
SLC2W
Launch Vehicle
Delta 0900
Orbital Elements
NORAD ID
06126
International Designator
1972-058A
Epoch
Sun, 19 Jul 2026 19:33:44 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
99.34°
Right Ascension
231.10°
Eccentricity
Calculating...
Argument of Perigee
159.57°
Period
103.02 min
Mean Motion
13.98 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Explore in the Catalog
Basic Satellite Info
Name
LANDSAT 1 (ERTS 1)
Alternative Name
ERTS 1
Type
Payload
Status
Non-operational
Owner
GSFC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 06126U 72058A 26200.81510079 -.00000015 00000+0 22059-4 0 9996
2 06126 99.3360 231.1029 0008151 159.5688 200.5801 13.97842349752518
Source: Celestrak
Summary
Apologies, there is no summary for this satellite yet. I am working to generate these for every object in the catalog, but it is going to take time.
Physical Characteristics
Length
3.3
Diameter
3
Span
3.7
Dry Mass
891
Launch Mass
891
Shape
Cone + 2 Pan
Radar Cross Section
2.6723
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
ERTS A
Purpose
Earth observation
Mission
Earth observation
Manufacturer
GEVF
Life Expectancy
1 year design (#1 6 years, #2 7 years, #3 5 years reached)
Bus
Nimbus
Configuration
Nimbus Bus
Motor
?
Equipment
RBV, MSS, DCS
Power System
2 deployable solar arrays, 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.
Space Brief 31 Aug 2025
SpaceX makes headlines with dual Starlink launches, Rocket Lab inaugurates new launch complex, while AI's impact on space missions and satellite technology continues to stir discussions.
Space Brief 21 Nov 2025
Today's brief covers the Space Force's strategic roadmap, a groundbreaking DARPA mission in Very Low Earth Orbit, and enhanced cyber defenses due to AI-driven threats.
Space Brief 24 Nov 2024
Today's briefing covers Blue Origin's New Glenn nearing its first launch, SpaceX's 400th Falcon 9 mission with Starlink satellites, advancements in space-based weather prediction, and more.
Starcloud Files 88,000-Satellite Constellation Plan | KeepTrack Space Brief
Starcloud files FCC plans for 88,000-satellite orbital data center constellation, matching scale of Starlink and Amazon Kuiper expansions. Massive LEO conjunction risk implications.
SpaceX Plans Seven Rocket Launches From Six Global Sites This Week | KeepTrack X Report
SpaceX targets seven rocket launches from six global sites this week including two Falcon 9 missions from California. 29 Starlink satellites successfully deployed from Cape Canaveral on January 18.
X Report 20 Oct 2025
SpaceX made significant strides with the successful launch of Starlink satellites and the approval for the redevelopment of SLC-6, reinforcing its foothold in commercial spaceflight.
X Report 19 Jan 2025
SpaceX prepares to launch 27 Starlink satellites in its first mission since the recent Starship explosion, while the FAA investigates debris reports from the failed test flight.