Report BPD Pontianak observation 41

Radiosonde Observation log

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

Date (YYYY/MM/DD				2011 /12 /20
Observation Members				Dedi, Miswari, Iwan
Observation Number				41
Observation Time				12 (UTC)
Radiosonde Number Radiosonde Frequency				G0553777 404.50 MHz
Ground Check			Reference	P(hPa): 1005,1	T(0C) : 25,7	RH (%): 0
			Difference	P (hPa):-0,0	T(0C) : -0,1	RH (%): 0
Sonde Release Time				18.30 LST
Observation End Time				19:34:28 LST
Flight Direction (16 direction)				North West
Maximum Elevation				20437 (km)
Archive File Name				111220 / 111220.002
Weather Condition				Cloudy
Cloud Amount				7/8   Octus
Surface	Pressure			1006,2    (hPa)
	Temperature			25,2         (0C)
	Relative Humidity			100      (%)
	Surface Wind Direction			81  (deg)
	Suferface Wind Speed			1,2   (m/s)
Comments		Observation success