Observations

1. Observing Lines & Frequencies	C18O J=1 - 0,	109.782182 GHz
2. Observed Regions/target sources	L1551
3. Observing period: 
Nov. & Dec. 2002, Mar., Apr., & May 2003
4. Receiver frontend:
BEARS
5. Receiver backend:
AC45
6. Frequency & Velocity resolutions:
37.8 kHz, 	0.1 km/s
7. Total bandwidth & Velocity Coverage:
32 MHz, 	87.4 km/s
8. Typical system temperature & typical atmospheric opacity:
280 K --- 350 K  @El 50 - 60 Degree
9. Main-beam efficiency: 
45 %
10. Observation mode: OTF / position switch / frequency switch
position switch
11. OFF Position (s) if OTF/Position switch is applied;
(4h26m24s, 17d45'00")  (B1950)
12. Pointing Calibration & Pointing error:
NML-Tau,	< 5 arcsec.
13. Intensity Calibration & Accuracy of absolute scale:
3' north of Orion KL,   10%
14. Noise level: 
Ave. 0.31 K, 	s.d. 0.12 K
15. CUBE FITS Information
   Mapping area: 	BLC(4h29m13.1s, 17d53'28.1")
TRC(4h27m36.1s, 18d15'09.2")
Velocity	 0 -- 15 km/s
   Grid spacing:	13.7"
   CUBE size: (x, y, z)	102 x 96 x 150
16. Other information