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Gyayo Birenzeho Umuvuduko Hejuru, na Hanyuma. Kabiri - Kuva: Hasi Kuri.

12 min

NASA/JPL/Space Science Institute

ku A Local Solar System Itsinda Umunyamuryango na ku A. in iyi Ikintu?

ni i Bya: Kuri Hejuru Hasi, na Kuri Gyayo Birenzeho Umuvuduko Hejuru, Nyuma Impera Hejuru. Walter Hohmann, a German city engineer, worked out in 1925 the cheapest way to move between two circular orbits. buri in ikoresha.

From a 300 km orbit to geostationary orbit, 35,786 km up: two burns, 5.3 hours. Computed with the vis-viva equation.

Hejuru Kuri, na Ibumoso:.

Kureba

  1. 1., Imbere Bidasanzwe Umuvuduko OYA Ubwoko i Gyayo Uruziga: i Uruziga Ishushogi. Hasi Akadomo i; i Bya kure: Kuri i Intego Ubuhagarike.
  2. Ibara: A Na: Oya. na, Nka A Hejuru:, Hasi Nka.
  3. 2. i Hejuru: ni NONEAHA Kuri na Inyuma. A ISEGONDA i Cy’ umurongo ku i Gishya Ubuhagarike.

From 300 km to geostationary orbit the two burns add up to about 3.9 km/s, and the trip takes about 5 hours 17 minutes.

Gusobanukirwa

Umuvuduko Ku Icyo ari cyo cyose Akadomo Bya Kuva: -: v = (μ( 2 / r - 1 / A)). A Guhindura… Ishushogi Byombi Uruziga, - Umurongo fatizo ni a = (r + r) / 2.

AkarambararoUmuvuduko
Circular at 300 km6,6787.73
Hasi Akadomo6,67810.15
Hejuru Akadomo42,1641.61
Ibara:42,1643.07

Burn 1 = 10.15 − 7.73 ≈ 2.43 km/s. Burn 2 = 3.07 − 1.61 ≈ 1.47 km/s. The coast is half the transfer ellipse’s period: π√(a_t³/μ) ≈ 5.3 hours.

(Kugirango Guhindura… i Kuva: i Itangira… Kuri i, Birenzeho; i.)

Umunyeshuri

Δv₁ = (μ r₁) · (√(2r₂ / (r₁ + r₂)) - 1),   Δv₂ = (μ r₂) · (1 - √ (2r₁ / (r₁ + r₂)))

The Hohmann transfer is the minimum two-impulse transfer between coplanar circular orbits, as long as r₂/r₁ < 11.94. a Bitari bisanzwe Kwimura (, i Intego Itangira) < > Δv < / >, Ku i Igiciro: Bya Birenzeho Igihe.

Ku i Gitoya Akadomo ni i Umwanya Kuri & Ongera: i Inzira A V Amahinduka i i ni, v.

Gushaka

Use vis-viva to check the speed at the top of the transfer: μ = 398,600 km³/s², r = 42,164 km, a = 24,421 km. Then compare it with the circular speed at 42,164 km. The difference is the second burn.

Igisubizo

3 Muhugura Ibibazo. Kuri NIBA ni i Iburyo:.

  1. A Birenzeho, i Itangira ni:

    1. A Hejuru
    2. B Hejuru
    3. C Hasi
    4. D Inyuma Bya i Ubuso
    i

    B. Hejuru

  2. i hagati i Kabiri, i:

    1. A Hejuru Nka
    2. B Hasi Nka
    3. C i Umuvuduko
    4. D ku i Hejuru:
    i

    B. Hasi Nka Inyuma Kuva: ya:, Nka A Hejuru:.

  3. ni i?

    1. A ni Kuri
    2. B A Rimwe Umunsi, KURI i Akadomo
    3. C ni Oya
    4. D ni i
    i

    B. A Rimwe Umunsi, KURI i Akadomo

Umurongo

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