Observations

1. Observing Lines & Frequencies
13CO J=1-0	110.201353 GHz
2. Observed Regions/target sources
Taurus-Auriga region
R.A. ~ 4h37m ??41m, Decl. ~ +23.5d ??+32.5d (B1950)
3. Observing period: 
March - May 2000 and November 2000 - May 2001
4. Receiver frontend:
BEARS
5. Receiver backend:
AOS-H (March - May 2000)
AC of high resolution mode (November 2000 - May 2001)
6. Frequency & Velocity resolutions: 
AOS-H : 37 kHz / AC : 37.8 kHz
7. Total bandwidth & Velocity Coverage:
AOS-H : 40 MHz / AC : 32 MHz
8. Typical system temperature & typical atmospheric opacity:
Tsys(DSB) ~ 250-500 K
9. Main-beam efficiency: 
10. Observation mode: OTF / position switch / frequency switch
frequency switching mode ( frequency throw = 7.35184 MHz (~20 km/s) )
11. OFF Position (s) if OTF/Position switch is applied;
12. Pointing Calibration & Pointing error:
SiO maser (IRAS 04209+4800, NML-Tau, or Ori-KL) at 43 GHz
13. Intensity Calibration & Accuracy of absolute scale:
Comparing with the S100 SSB receiver at W3(OH), Ori-KL, and S140
(The main-beam efficiency, 0.48, of S100 should be applied to convert into main-beam temperature, Tmb = Ta* / ETAmb. )
14. Noise level: 
typical r.m.s. noise per a velocity channel: ~ 0.8 K (Ta*)
15. CUBE FITS Information
Mapping area:	reference position (RA,Dec)=(04h40m,+30d00')
(dRA,dDec)	TRC +00d15'04.2", -06d24'58.2"
BLC -00d45'53.7", +02d49'11.7"
Grid spacing:	41.1"
Channel width:	0.1 km/s
CUBE size:	(x, y, v) = (90,810,161)
16. Other information 
half-power beam width (HPBW):	~ 15"
data sampling separation:	41.1"
The observation is constructed with rough sampling data, and it is recommended that this data set is spatially smoothed.