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SIERRA NEGRA Observatory
H. Salazar, C. Alvarez, O.Martinez,T. Murrieta, G.Perez, L.Villasenor, Facultad de Ciencias
Físico Matemáticas BUAP
CABAÑA
ALT: 4560N 18° 59’ 03.9’’W 97° 18’ 44.7’’
ALT: 4558N 18° 59’ 04.6’’W 97° 18’ 45.4’’ CENTRO
ALT: 4557N 18° 59’ 03.7’’W 97° 18’ 45.5’’
ALT: 4557N 18° 59’ 04’’W 97° 18’ 46.4’’
ALT: 4558N 18° 59’ 02.9’’W 97° 18’ 45.2’’
ARENA
RAMPA
NORTESUR
Array distribution
Calibration with the Crab Nebula•Flux: 2.68x10-7 fotons/m2/s E>TeV•4 hours observation/day (+-30o) =14400 s•Area=500 m2
•Flux/day = 1 fotón/day
Measured Flux at la Sierra Negra300 Showers/min95% protones rejected, 50% photons Direction accuracy +/- 2o=16 minShowers in the field of view N~240 , sigma~155 sigma = 75 means 150 days of detection of the Crab.