Question

which are  natural satellites and list mass them

Answer 1

The smaller but natural  celestial bodies which revolve around planets are termed as natural satalites. for ex- the moon is our earth's natural's satellite.

other examples are-

1.phobos

2. deimos

3.titan

4.hydra

5. nix

6. Kerberos etc. 

Answer 2

Natural satellite is a celestial body that orbit a plant, stars. And not made up by humans. Examples of natural satellite:
1) Deimos
2) Cogtios
3) Phobos