Space Brief 8 May 2025
Today we cover new appointments at NASA, calls for increased Space Force funding, and a successful test of a hypersonic vehicle. Further investigations target SpaceX, and a documentary highlights space superiority.
IRNSS-1D (40547)
COSPAR: 2015-018A | Alt Name: IRNSS-R1D
Image
Additional Sources
Launch Details
Launch Date
March 28, 2015
Launch Site
SRILR
Launch Pad
FLP
Launch Vehicle
PSLV-XL
Orbital Elements
NORAD ID
40547
International Designator
2015-018A
Epoch
Fri, 03 Jul 2026 20:47:23 GMT
Apogee
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Perigee
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Inclination
19.54°
Right Ascension
238.58°
Eccentricity
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Argument of Perigee
345.39°
Period
1469.99 min
Mean Motion
0.98 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
IRNSS-1D
Alternative Name
IRNSS-R1D
Type
Payload
Status
Non-operational
Owner
ISRO
Country
India
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 40547U 15018A 26184.86623882 -.00000101 00000-0 00000-0 0 9992
2 40547 19.5396 238.5794 0008105 345.3913 12.1485 0.97959780 41061
Source: Celestrak
Summary
IRNSS-1D is a satellite launched by ISRO on March 28, 2015, from Satish Dhawan Space Centre using a PSLV-XL launch vehicle. It measures 1.6 meters in length and 1.5 meters in diameter with a span of 10 meters and has a dry mass of 603 kilograms and a launch mass of 1425 kilograms. The satellite uses the I-1K bus configuration, operates on navigation missions, and is equipped with navigation payload, CDMA ranging payload, and laser retro-reflector equipment. It generates power through two deployable solar arrays and batteries. IRNSS-1D was manufactured by ISAC and has a mission lifetime of 12 years.
Physical Characteristics
Length
1.6
Diameter
1.5
Span
10
Dry Mass
603
Launch Mass
1425
Shape
Box + 2 Pan
Radar Cross Section
0.1
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
IRNSS-1D
Purpose
Navigation
Mission
Navigation
Manufacturer
ISAC
Life Expectancy
12 years
Bus
I1K
Configuration
I-1K (I-1000) Bus
Motor
ISRO LAM
Equipment
Navigation payload, CDMA ranging payload, laser retro-reflector
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
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