Report Pontianak Observation number 28

Radiosonde Observation log

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

Date (YYYY/MM/DD				2011 /12 /14
Observation Members				Hadi.R , M. sayuti, sy. Hidayat
Observation Number				28
Observation Time				12 (UTC)
Radiosonde Number Radiosonde Frequency				G2414266 404.50 MHz
Ground Check			Reference	P(hPa): 1007,3	T(0C) : 25,8	RH (%): 0
			Difference	P (hPa): -0,1	T(0C) : 0,4	RH (%): 0
Sonde Release Time				18.30  LST
Observation End Time				19:37:00
Flight Direction (16 direction)				East
Maximum Elevation				19456
Archive File Name				111214 / 111214.002
Weather Condition				Fine
Cloud Amount				4/8   Octus
Surface	Pressure			1007.1    (hPa)
	Temperature			25.7         (0C)
	Relative Humidity			100      (%)
	Surface Wind Direction			270   (deg)
	Suferface Wind Speed			0.5    (m/s)
Comments		-       Balloon launched succused