Report BPD Pontianak Observation 56

Radiosonde Observation log

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

Date (YYYY/MM/DD				2011 /12 /28
Observation Members				Dedy Suryadi, Miswari, Rudiyanto
Observation Number				56
Observation Time				00 (UTC)
Radiosonde Number Radiosonde Frequency				G2354188 404.50 MHz
Ground Check			Reference	P(hPa): 1009,5	T(0C) : 22,8	RH (%): 0
			Difference	P (hPa): -0,1	T(0C) : -0,4	RH (%): 0
Sonde Release Time				06.30 LST
Observation End Time				07:31:04 LST
Flight Direction (16 direction)				South
Maximum Elevation				19697 (km)
Archive File Name				111228/ 111228.001
Weather Condition				Fine
Cloud Amount				4/8   Octus
Surface	Pressure			1010,3    (hPa)
	Temperature			25,2        (0C)
	Relative Humidity			100     (%)
	Surface Wind Direction			340 (deg)
	Suferface Wind Speed			0,2 (m/s)
Comments		-       Balloon launched succesed -       Data completed saved