Niente paura ,  l’Armageddon è rimandato a data da destinarsi questo  asteroide PHA che il 20 Aprile ci passera

“abbastanza”  vicino ma non tanto da impensierire troppo i cacciatori di sassi (0,033612 U.A)  denominato

    2017 GM4

First observed at Pan-STARRS 1, Haleakala on 2017-04-01.

Orbit :

Orbit type: Apollo PHA                   (LINK A COSA E’ UN —-> PHA)
Potentially Hazardous Asteroid

Ecco gli osservatori che hanno contribuito a determinarne l’orbita inseriti nella circolare   

  MPEC 2017-G42 : 2017 GM4

Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
    P. Bacci, L. Tesi, G. Fagioli.  0.60-m f/4 reflector + CCD.
691 Steward Observatory, Kitt Peak.  Observer J. V. Scotti.  0.9-m f/3
    reflector + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + CCD.
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.41-m f/3.75 astrograph + CCD, 0.81-m f/7 Ritchey-Chretien
    + CCD.
958 Observatoire de Dax.  Observers P. Dupouy, J. B. de Vanssay.  Measurer
    P. Dupouy.  0.43-m f/2.7 reflector + CCD.
E23 Arcadia.  Observer A. Hidas.  0.35-m f/1.9 reflector + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, S. Kahale,
    T. Lowe, A. Schultz, M. Willman.  Measurers K. Chambers, S. Chastel,
    L. Denneau, H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat,
    C. Waters, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer E. J. Christensen.
    Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny,
    R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
J22 Tacande Observatory, La Palma.  Observer K. Hills.  0.5-m f/2.9 astrograph
    + CCD.
K38 M57 Observatory, Saltrio.  Observer G. Baj.  0.30-m f/8 Ritchey-Chretien
    + CCD.
K63 G. Pascoli Observatory, Castelvecchio Pascoli.  Observer R. Bacci.  0.30-m
    f/4 Newtonian reflector + CCD.
K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  0.60-m Schmidt + CCD.
K93 Sutherland-LCOGT C.  Observers T. Lister, S. Greenstreet, E. Gomez.
    Measurer T. Lister.  1.0-m f/8 Ritchey-Chretien + CCD.
W25 RMS Observatory, Cincinnati.  Observer B. Rowe.  0.35-m Schmidt-Cassegrain
    + CCD.

Orbital elements:
2017 GM4       PHA, Earth MOID = 0.0040 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M 310.24840              (2000.0)            P               Q
n   0.44164250     Peri.   84.79878     +0.34472430     +0.93816546
a   1.7077415      Node   205.43781     -0.88790508     +0.31489187
e   0.6006160      Incl.    4.24464     -0.30461408     +0.14383556
P   2.23           H   22.0           G   0.15           U   7