A. V. Talikov
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Re: Oblako, skopleniya i kometa Saiding-Spring
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6.09.2014 13:51 |
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Orbital characteristics[1]
Epoch August 27, 2011 (2455800.5)
Aphelion2.29608 AU (Q)
Perihelion0.967688 AU (q)
Semi-major axis
1.6319 AU (a)
Eccentricity0.40701
Orbital period
2.0847 yr (761.4 d)
Mean anomaly
201.5
Inclination0.9267
Longitudeof ascendingnode
47.505
Argumentof perihelion
204.0673
Physical characteristics
Dimensions12×24 m
Mass5×106 kg
Sidereal rotation period
42.7 s (0.01185 h)
Absolute magnitude(H)
25.7[1]
Sblizheniya povtoryayutsya raz v 2 goda, bolee tesnye v 25 let. Uskorenie vrasheniya
___sootvetstvuet tyazhesti na asteroide v 100.000 bol'shem, naprimer na Cerere.
Energiya vrasheniya 5 MDzh ili 1,5 kVt*ch. Mozhno zapustit' na niti kilogrammovyi
ob''ekt so skorost'yu v 3 km/sek za schet vrasheniya asteroida. Zapas prochnosti kak
u polmetrovoi sosul'ki. Vozmozhno vytyanutaya forma svidetel'stvuet o
tekuchesti sostavlyayushego kometu l'da. Rasstoyanie do perigeliya ot orbity Zemli
ne bolee 8 mln km, a mezhdu orbitami ok. 2,5 mln km.
Esli na peresadku zatrachivat' pol-nedeli(ergonoma do Luny), potrebuetsya
summarnyi impul's ot OZO v 20 km/sek, a pri otsutstvii nakloneniya byl by 6 km/
sek. Zato ekonomim massu zashity ot kosmicheskoi radiacii i ot sobstvennogo
_reaktora - reaktor stavim za gorkoi, gorke vyrezaem rot, a rtu yazyk, poluchayutsya
zuby - zhivem na meste yazyka, prikryvayas' zubami. 3 mm svinca oslablyayut
izluchenie v 2 raza, 3 sm - v 1000 raz, chto uvelichivaet prodolzhitel'nost' poleta s
pol-nedeli do 10 let. Massa zashity ob''ema diametrom 5 m 2.5 t, no uchityvaya' chto
polovina lunnyh astronavtov umerla, zashitu sleduet uvelichit' do fonovoi
smertnosti 1% god, a dlya zdorovyakov-kosmonavtov 0,5% god ili v 10 raz, chto
sootvetstvuet troinoi tolshine ili 8 t svinca, a dlya diametra 10 m - 30-35 t.
Yasno, chto zashita asteroidom massoi 5 tys t mogla by nam s''ekonomit'
neskol'ko stupenei. Na odnu stupen' s impul'som 4 km/sek idet 2,7 krat massy.
Vot stepeni 2,7: 1-2,7___2-7,3___3-20___4-55___5-150___6-400 krat.
Dlya polutora tonn poleznoi nagruzki massa zashity ekvivalentna 3 stupenyam
rakety. Poetomu ispol'zovat' dlya zashity kometu s takim udalennym
otstoyaniem nakloneniya apolonovoi orbity nevygodno. Otstoyanie nado
sokratit'_ raza v dva do mln km.
Zavtra proletaet podhodyashii ob,'ekt 2014-RC
2014 RC
Discovery[1][2]and designation
DiscoveredbyCatalina Sky Survey (703)
Pan-STARRS (F51)
DiscoverydateSeptember 12, 2014
Minorplanet categoryApollo asteroid, Near-Earth object
Orbital characteristics
Epoch December 9, 2014
Aphelion1.8041 AU
Perihelion0.8207 AU
Semi-major axis
1.3124 AU
Eccentricity0.3747
Orbital period
1.504 years (549 days)[3]
Mean anomaly
25.64
Inclination4.574
Longitudeof ascendingnode
345.01
Argumentof perihelion
71.19
EarthMOID0.000034AU (5,100km; 3,200mi)
(0.013 LD)
Physical characteristics
Dimensions1032m (33105ft)[4]
Absolute magnitude(H)
26.8[3]
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