Report BPD Pontianak Observation 55

Radiosonde Observation log

Station	Pontianak (LAPAN Observatory)
Position	0.00 0 S,109.370 E
Altitude	1m MSL

Date (YYYY/MM/DD				2011 /12 /27
Observation Members				Hadi R, Suheruddin, Sy.Hidayat
Observation Number				55
Observation Time				12 (UTC)
Radiosonde Number Radiosonde Frequency				G0553779 404.50 MHz
Ground Check			Reference	P(hPa): 1008,3	T(0C) : 26,6	RH (%): 0
			Difference	P (hPa): 0,8	T(0C) : -0,1	RH (%): 0
Sonde Release Time				18.30 LST
Observation End Time				19.27.00 LST
Flight Direction (16 direction)				South east
Maximum Elevation				19584  (km)
Archive File Name				111227/ 111227.002
Weather Condition				Cloudy
Cloud Amount				5/8   Octus
Surface	Pressure			1008,6    (hPa)
	Temperature			22,3        (0C)
	Relative Humidity			80     (%)
	Surface Wind Direction			301 (deg)
	Suferface Wind Speed			0,4 (m/s)
Comments		-       Balloon launched succesed -       Data completed saved