X Report 21 Nov 2025
SpaceX celebrates significant milestones with its 100th launch of the year, enhancing Starlink's coverage while preparing for an escalating Starship production cadence.
Launch Date
April 3, 1965
Launch Site
AFWTR
Launch Pad
PALC2-4
Launch Vehicle
Atlas SLV-3 Agena D
NORAD ID
01315
International Designator
1965-027B
Epoch
Mon, 20 Jul 2026 18:14:44 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
90.25°
Right Ascension
16.33°
Eccentricity
Calculating...
Argument of Perigee
111.60°
Period
111.40 min
Mean Motion
12.93 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
SECOR 4 (EGRS 4)
Alternative Name
EGRS IV
Type
Status
Owner
ACE/GIMR
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 01315U 65027B 26201.76023250 -.00000024 00000+0 -11676-3 0 9997
2 01315 90.2498 16.3327 0032777 111.6039 260.3150 12.92668371891261
Source: Celestrak
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.
Length
0.2
Diameter
0.4
Span
0.5
Dry Mass
18
Launch Mass
18
Shape
Box
Radar Cross Section
0.172
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Secor II S/N 5 (ITT C-101)
Purpose
Geodesy
Mission
Geodesy
Manufacturer
ITT
Life Expectancy
Unknown
Bus
Secor
Configuration
cube
Motor
?
Equipment
TR-27 SECOR transponder (#1, 2, 3); C-101 SECOR transponder (#4); TR-30A SECOR transponder (#6, 7, 8, 9); MAT SECOR transponder (#10, 12); TR-30A SECOR transponder (#11, 13);
Power System
Solar cells, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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