Report BPD Pontianak Observation number 37

Radiosonde Observation log

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

Date (YYYY/MM/DD				2011 /12 /18
Observation Members				Suparman, Hidayat, Iwan
Observation Number				37
Observation Time				12 (UTC)
Radiosonde Number Radiosonde Frequency				G0553771 404.50 MHz
Ground Check			Reference	P(hPa): 1006,3	T(0C) : 27,6	RH (%): 0
			Difference	P (hPa):0,2	T(0C) : -0,1	RH (%): 0
Sonde Release Time				18.30 LST
Observation End Time				19:37:38 LST
Flight Direction (16 direction)				South East
Maximum Elevation				19531 (km)
Archive File Name				111218 / 111218.002
Weather Condition				Fine
Cloud Amount				4/8  3 Octus
Surface	Pressure			1007,0    (hPa)
	Temperature			27,5         (0C)
	Relative Humidity			77      (%)
	Surface Wind Direction			273  (deg)
	Suferface Wind Speed			0,4   (m/s)
Comments		Observation success