GRAIL-A (EBB) (37801)

COSPAR: 2011-046A | Alt Name: Ebb

DECAYED

Image

Additional Sources

Launch Details

Launch Date

September 10, 2011

Launch Site

Cape Canaveral Space Force Station

Launch Pad

SLC17B

Launch Vehicle

Delta 7920H

Orbital Elements

NORAD ID

37801

International Designator

2011-046A

Decay Date

12/17/2012

Basic Satellite Info

Name

GRAIL-A (EBB)

Alternative Name

Ebb

Type

Payload

Status

Decayed

Owner

JPL

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Summary

GRAIL-A (EBB) is a US satellite launched on September 10, 2011, from Cape Canaveral Air Force Station's SLC17B launch pad using the Delta 7920H launch vehicle. The spacecraft measures 1.1 meters in length and has a diameter of 0.8 meters with a span of 1.1 meters. Its dry mass is 201 kilograms, and it had a launch mass of 307 kilograms. GRAIL-A's mission was to map the lunar gravity field, supported by two deployable fixed solar arrays and batteries for power supply. The satellite operated for approximately 270 days after its deployment in space. It was manufactured by LMSSD under the JPL ownership, designed as a Box + 2 Pan shape with an AOCS motor system.

Physical Characteristics

Length

1.1

Diameter

0.8

Span

1.1

Dry Mass

201

Launch Mass

307

Shape

Box + 2 Pan

Radar Cross Section

0.0005

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

GRAIL A

Purpose

Lunar gravity field mapping

Mission

Lunar gravity field mapping

Manufacturer

LMSSD

Life Expectancy

270 days

Bus

GRAIL

Configuration

LM-300

Motor

AOCS

Equipment

Unknown

Power System

2 deployable fixed solar arrays, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

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