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Mass

Just how heavy is 2 US tons?

Heavyweights

2 US tons

Scale
2 US tons

The quantity is exact as entered.

1,814 kgMass in kilograms
0 kg
Gaia spacecraft

Gaia is a European Space Agency observatory designed to map the positions and motions of stars in the Milky Way.

2,030 kgLaunch mass in kilograms
0 kg

Bar length measures mass, not physical size. Both bars start at zero kilograms (kg). Pictures identify the objects only.

A little perspective

The launch mass of the Gaia spacecraft is about 1.12 times 2 US tons.

Measurements, assumptions & sources +

2 US tons

Mass: 1.814 t; definition.

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

NIST — SI conversion factors

Gaia spacecraft

Launch mass: 2.03 t; approximate.

ESA’s Gaia observatory was approximately 3.5 m high and had a launch mass near 2,030 kg. Its deployed circular sunshield defines a much larger transverse span.

ESA — Gaia factsheet

The marked launch mass is calibrated. Unmeasured illustration details are representative.

Measurement details

Why these numbers?

Compare 2 US tons with the launch mass of the Gaia spacecraft. The notes below explain how each value was chosen.

2 US tons

1.814 t

Mass · definition

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

Gaia spacecraft

2.03 t

Launch mass · approximate

ESA’s Gaia observatory was approximately 3.5 m high and had a launch mass near 2,030 kg. Its deployed circular sunshield defines a much larger transverse span.

Comparing
Mass ↔ Launch mass
Relative size
The launch mass of the Gaia spacecraft is about 1.12 times 2 US tons. The launch mass of the Gaia spacecraft is approximately 11.9% greater than 2 US tons.

How to read the visual

The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.

  • The launch mass of the Gaia spacecraft: This is an estimate; check the notes for its rounding and uncertainty.

Mass is distinct from weight: an object’s mass stays the same as gravity changes.

1,814.4 kgkilograms
4,000 lbpounds
1.8144 ttonnes

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