Space Brief 21 Dec 2025
Today's briefing highlights the SDA's significant satellite award, Blue Origin's groundbreaking flight, and NASA's call for an Artemis review.
Launch Date
March 18, 2001
Launch Site
SEAL
Launch Pad
KLA -
Launch Vehicle
Zenit-3SL
NORAD ID
26725
International Designator
2001-012B
Epoch
Sat, 04 Jul 2026 03:52:36 GMT
Apogee
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Perigee
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Inclination
1.39°
Right Ascension
357.24°
Eccentricity
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Argument of Perigee
150.36°
Period
644.06 min
Mean Motion
2.24 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Name
BLOCK DM-SL R/B
Alternative Name
Blok DM-SL No. 5L
Type
Status
Owner
SEALP
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 26725U 01012B 26185.16153712 -.00000118 00000-0 -27473-2 0 9991
2 26725 1.3853 357.2402 7050403 150.3587 323.5966 2.23580039206717
Source: Celestrak
Length
6.3
Diameter
3.7
Span
6.3
Dry Mass
3210
Launch Mass
11650
Shape
Cyl
Radar Cross Section
20.6412
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Blok DM-SL
Purpose
Unknown
Mission
Unknown
Manufacturer
RKKE
Life Expectancy
Unknown
Bus
Blok DM2
Configuration
Unknown
Motor
11D58M
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
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