Delta

Payload Accommodations

Payload Fairing

 

 

Length

19.1 m (63 ft)

 

Primary Diameter

5.1 m (16.7 ft)

 

Mass

3,520 kg (7760 lbm)

 

Sections

2

 

Structure

Composite sandwich

 

Material

Graphite–epoxy composite

Payload Compartment

 

 

Maximum Payload Diameter

Composite: 4,572 mm (180 in.)

 

 

Aluminum isogrid: 4,572 mm (180 in.)

 

Maximum Cylinder Length

Composite: 6,439 mm (253.5 in.) or 10,988 mm (432.6 in.)

 

 

Aluminum isogrid: 12,192 mm (480.0 in.)

 

Maximum Cone Length

Composite: 4,292 mm (169.0 in.) or 4,727 mm (186.1 in.)

 

 

Aluminum isogrid: 4,292 mm (169.0 in.)

Payload Integration

 

 

Nominal Mission Schedule Begins

T–24 months

Launch Window

 

 

Last Countdown Hold Not Requiring Recycling

T–5 minutes

 

On-Pad Storage Capability

Extended storage in HIF

 

Last Access to Payload

Mission specific

Environment

 

 

Maximum Axial Load

6.0 g

 

Maximum Lateral Load

2.5 g

 

Minimum Lateral/Longitudinal Payload Frequency

8/30 Hz

 

Maximum Acoustic Level

133 dB at 125 Hz

 

Overall Sound Pressure Level (Without Blankets)

142.7 dB

 

Maximum Flight Shock

4,000 g at 10 kHz

 

Maximum Dynamic Pressure on Fairing

42.6 kPa (890 lbf/ft2)

 

Maximum Aeroheating Rate at Fairing Separation

1,135 W/m2 (0.1 BTU/ft2/s)

 

Maximum Pressure Change in Fairing

4.14 kPa/s (0.6 psi/s)

 

Cleanliness Level in Fairing

Class 100,000

Payload Delivery

 

 

Standard Orbit Injection Accuracy (3 sigma)

LEO: 500 km 90 deg orbit: ±8.6 km

 

 

(4.6 nmi), ±0.06 deg inclination

 

 

GTO: ±5 km (2.7 nmi) perigee,

 

 

±80 km (43 nmi) apogee,

 

 

±0.02 deg inclination

 

Attitude Accuracy (3 sigma)

±1–2.5 deg

 

Nominal Payload Separation Rate

0.3 m/s (1 ft/s)

 

Deployment Rotation Rate Available

0–5 rpm

 

Loiter Duration in Orbit

Mission dependent

 

Maneuvers (Thermal/Collision Avoidance)

Yes