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