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(99942)

( «99942 »)
: ,
, . .
(99942)
2004MN4 Sormano.gif


-
19 2004
2004 MN4
()
14 2012
JD 2456000.5
(e) 0,19111
(a) 137,98
(0,92234 . .)
(q) 111,611
(0,7460716 . .)
(Q) 164,349
(1,0986084 . .)
(P) 323,545 (0,886 )
30,728 /
(i) 3,332 °
(Ω) 204,432 °
(ω) 126,418 °
(M) 202,495 °
270
2,7·1010
3,274 /
2- 0,00014 /[1]
30,4 [2]
19,7 m
0,33[2]
270 (3 °C)

(99942) ́ (. Apophis)  , , 2004 - . 2004 MN4, 19 2005. (   Άποφις, )  , , () . , , . 2029 . , , , [3]. , . . « SG-1» «», [4].

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, , 13 [5]. 2029 37 500  ( : 36 830 [6], 37 540 [7], 37 617 [8]) . [9] 2029 , 2036 [6][7]. 2,2·105[5] 2,5·105[7]. , 2036[6].

2004 4 ( ), [?] 0[10].

2009 , - - 2004 2008[11]. , , ( NASA) , . , 1:45 000, 1:250 000[12]. , 2029   28,9 . .

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2036 .

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, (), [14][15].

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  1. assuming radius of 0,135 km and mass of 2,1·1010 yields an escape velocity of 0,14 m/s or 0,52 km/h.
  2. 1 2 (99942) . The Near-Earth Asteroids Data Base at E.A.R.N. 25 2012. 15 2009.
  3. . ., . ., . . 99942 . 42, № 1, - 2008, . 1.  (.)
  4. astronomy.com. 27 2011. 16 2008.
  5. 1 2 3 99942 Apophis (2004 MN4) Earth Impact Risk Summary. NASA. 25 2012. 21 2008.
  6. 1 2 3 . ., . ., . .  99942 . 42, № 1, - 2008, . 20-29.
  7. 1 2 3 . .  , . . « », 2007.
  8. 1 2 . . , . A. APOPHIS. 16 2008.
  9. Radar Observations Refine the Future Motion of Asteroid 2004 MN4
  10. Current Impact Risks  (.)
  11. MPEC 2009-T16 : DAILY ORBIT UPDATE (2009 OCT. 7 UT)
  12. NASA Refines Asteroid Apophis' Path Toward Earth
  13. Sandia supercomputers offer new explanation of Tunguska disaster. Sandia National Laboratories (17 2007).  The asteroid that caused the extensive damage was much smaller than we had thought, says Sandia principal investigator Mark Boslough of the impact that occurred June 30, 1908.. 25 2012. 29 2008..
  14. . ., . ., . . . . « », 2007
  15. P.Weiss, W.Leung, T.C., Ng, Houyi Asteroid Apophis Tracking and Sampling System, Planetary Society Apophis Mission Design Competition, 2008
  17. .

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99941 (2003 WF107)       ·       (99942)       ·       99943 (2005 AS2)

 

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