sputnik

/sputnik/

Cases

SingularPluralWhen to use it
nominativesputnikthe satellitesputniklethe satellitesthe plain dictionary form — the doer of the sentence
genitivesputniknithe satellite'ssputniklenithe satellites'the owner — whose it is
accusativesputniknithe satellite (as the object)sputniklenithe satellites (as the object)a specific, known object — whom or what
dativesputnikgeto the satellitesputniklegeto the satellitesdirection or recipient — to where, to whom
locativesputnikdeat / in the satellitesputnikledeat / in the satelliteswhere it is; also having — mende bar, "I have it"
ablativesputnikdenfrom the satellitesputnikledenfrom the satelliteswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
where it comes from; also "than" when comparing

The endings are the same ones the pronouns wear — that page explains when each case is used.

With an owner

One ownedSeveral owned
mysputnigimmy satellitesputniklerimmy satellites
yoursputnigingyour satellitesputnikleringyour satellites
his / hersputnigihis / her satellitesputniklerihis / her satellites
oursputnigibizour satellitesputnikleribizour satellites
you all'ssputnigigizyou all's satellitesputniklerigizyou all's satellites
theirsputnikleritheir satellitesputnikleritheir satellites

The overlap in the last rows is real, not a mistake: sputnikleri can mean "his / her satellites", "their satellite", or "their satellites" — context decides.