Computation of NLC or meteor altitudes

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East longitude is positive, west negative
North latitude is positive, south negative
Azimuth: N=0, E=90, S=180, W=270

Observer 1

Long ' "
Lat ' "

Observed feature
Altitude Azimuth
---- or ----
RA h m s
Decl ' "
Date Y M D
UT h m s

Observer 2

Long ' "
Lat ' "

Observed feature
Altitude Azimuth
---- or ----
RA h m s
Decl ' "
(same date/UT as for
observer 1 assumed)




Position of common feature:
altitude (km)
above long lat
Accuracy (km)