Space Brief 27 Oct 2024
Today's brief covers SpaceX's latest Starlink launch, updates on Crew-8's return, and preparations for the SLS Artemis II mission.
NAVSTAR 61 (USA 199) (32384)
COSPAR: 2007-062A | Alt Name: GPS IIR-18(M)
Image
Additional Sources
Launch Details
Launch Date
December 20, 2007
Launch Site
Launch Pad
SLC17A
Launch Vehicle
Delta 7925-9.5
Orbital Elements
NORAD ID
32384
International Designator
2007-062A
Epoch
Wed, 01 Jul 2026 17:56:32 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
55.02°
Right Ascension
273.57°
Eccentricity
Calculating...
Argument of Perigee
166.61°
Period
717.99 min
Mean Motion
2.01 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
NAVSTAR 61 (USA 199)
Alternative Name
GPS IIR-18(M)
Type
Payload
Status
Operational
Owner
AFSMC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 32384U 07062A 26182.74759653 -.00000016 00000-0 00000-0 0 9998
2 32384 55.0200 273.5670 0035914 166.6056 6.7740 2.00561025135808
Source: Celestrak
Summary
NAVSTAR 61 (USA 199), also known as GPS IIR-18(M), is a US satellite used for navigation purposes. Launched on December 20, 2007, from SLC17A at AFETR using the Delta 7925-9.5 launch vehicle, this Series 4000 configuration satellite measures 1.5 meters in length and 1.9 meters in diameter with a span of 19.3 meters. The spacecraft has a dry mass of 910 kg and a launch mass of 1077 kg. It is powered by two deployable solar arrays and batteries, featuring a Box + 2 Pan shape design with an RCS of 2. NAVSTAR 61 was manufactured by LMVF for AFSMC and carries the GPS SVN 57 payload as part of its navigation mission.
Physical Characteristics
Length
1.5
Diameter
1.9
Span
19.3
Dry Mass
910
Launch Mass
1077
Shape
Box + 2 Pan
Radar Cross Section
2
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
GPS SVN 57
Purpose
Navigation
Mission
Navigation
Manufacturer
LMVF
Life Expectancy
Unknown
Bus
Series 4000
Configuration
AS-4000
Motor
Star 37XFP
Equipment
?
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.
Iran Strikes UAE and Saudi Targets, Space Force Opens Tracking to Commercial Firms | KeepTrack Space Brief
Iran launches drones and missiles at UAE and Saudi targets. Space Force opens secretive tracking data to commercial firms. Falcon 9 breakup linked to lithium pollution in upper atmosphere.
SpaceX Stock Jumps 19% on Nasdaq Debut, X Report 15 Jun 2026
SpaceX stock surged 19% on its Nasdaq debut as Musk targets $1 trillion revenue by 2030. Starlink 17-54 marks the 1,500th satellite launched in 2026.
X Report 18 Nov 2025
SpaceX successfully launched the Sentinel-6B satellite to monitor global sea levels while resuming daytime rocket launches. Furthermore, delays in the Starship timeline impact NASA's Artemis 3 mission schedule.
X Report 26 Oct 2025
SpaceX continues to make waves with record launches and emerging challenges in its lunar endeavors. A new launch site on the West Coast promises to ramp up capacity, even as the Falcon 9 prepares for its eventual retirement.
NLRB Drops SpaceX Oversight Case, Booster 19 Tests Complete | KeepTrack X Report
US labor board drops oversight case against SpaceX. Booster 19 completes cryogenic testing at upgraded Massey's. SpaceX IPO expected to reshape space investment landscape.
SpaceX to Lower 4,400 Starlink Satellite Orbits for Space Safety | KeepTrack X Report
SpaceX plans to lower orbits of 4,400 Starlink satellites after two collision-concern incidents. Cosmo-SkyMed Earth observation satellite launched for Italy from Vandenberg.
Amazon vs SpaceX and the Battle for the Best Satellite Internet Service
SpaceX and Amazon Are Playing for Keeps to Control Satellite Broadband and Connect the World. But Is There Room for Both in the Orbit?