Calibration Data - Valid for 2009.12- 2010.5

Scaling factors (Scaling to the results by S100+AC17) are shown here.
Please note that the errors dependent on baseline fitting range, an AC array used for S100 observation, velocity bin, and velocity range used for fitting are about 10 to 20 %.
We supply calibration data for some spectral lines; 12CO 1-0 (USB), 13CO 1-0 (LSB), C18O 1-0 (LSB), H13CO+ 1-0 (LSB), and N2H+ (LSB) at the rest frequency of each line.

!!IMPORTANT NOTE!! (2013/08/09)
It should be noted that the intensity variability of AC45 compared to AOS has been reported recently (see "AC45 scaling factor"). In the case that your data and the listed reference data are both taken with AC45-512 MHz mode, this should not be a cause for concern (error less than 10%).
However in the other cases, you may have an additional error of up to 40 % after you apply the BEARS scaling factors since we did not obtain the corresponding AC-AOS calibration data in 2009-2010 season.
For more details please contact us.

12CO J=1-0


<2010/4/3>

Date
Obs. Freq. [GHz]
Side Band
IF center freq. [GHz]
Backend
Target
2010/4/2, 3
115.271204
USB
2.3
AC-512 MHz
IRC+10216 (VLSR = -26 km s-1)
Scaling fators (text file)
AC#
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
SF
2.35
1.96
1.93
1.75
1.74
2.59
2.10
2.20
2.17
1.69
2.78
1.92
1.91
E*
0.02
0.06
0.01
0.05
0.02
0.06
0.06
0.06
0.06
0.04
0.07
0.05
0.01














AC#
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
SF
2.36
2.65
2.29
2.26
1.55
1.79
2.14
2.33
2.60
3.64
2.79
3.00
E*
0.06
0.02
0.03
0.06
0.05
0.03
0.05
0.05
0.06
0.08
0.07
0.07

*The errors denote one standard deviation of fitting.

13CO J=1-0


<2010/4/17>

Date
Obs. Freq. [GHz]
Side Band
IF center freq. [GHz]
Backend
Target
2010/4/17
110.201353
LSB
2.3
AC-512 MHz
W3 (VLSR = -40 km s-1)
Scaling fators (text file)
AC#
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
SF
1.38
1.61
1.74
1.67
1.58
1.58
1.97
1.39
1.64
1.86
1.79
1.51
1.35
E*
0.09
0.10
0.06
0.10
0.10
0.10
0.11
0.09
0.09
0.11
0.11
0.10
0.09














AC#
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
SF
1.68
1.66
1.57
1.43
1.66
1.55
1.78
1.71
1.33
1.27
1.34
2.02
E*
0.02
0.10
0.08
0.10
0.10
0.10
0.11
0.11
0.09
0.09
0.09
0.11

*The errors denote one standard deviation of fitting.

C18O J=1-0


<2010/5/3>

Date
Obs. Freq. [GHz]
Side Band
IF center freq. [GHz]
Backend
Target
2010/5/1, 2, 3
109.78
LSB
2.3
AC-512 MHz
W3 (VLSR = -40 km s-1)
Scaling fators (text file)
AC#
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
SF
2.03
2.67
2.62
2.37
1.89
2.48
2.24
2.03
2.28
2.36
2.31
2.16
1.80
E*
0.51
0.58
0.58
0.55
0.49
0.56
0.53
0.51
0.54
0.55
0.54
0.53
0.48














AC#
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
SF
2.07
2.35
2.19
2.08
1.88
1.69
2.13
2.05
1.57
1.85
1.77
2.77
E*
0.51
0.54
0.53
0.52
0.49
0.46
0.52
0.51
0.44
0.48
0.47
0.60

*The errors denote one standard deviation of fitting.

H13CO+


<2010/5/21>

Date
Obs. Freq. [GHz]
Side Band
IF center freq. [GHz]
Backend
Target
2010/5/21
86.75433
LSB
2.3
AC-32 MHz
Orion-South (VLSR = 9 km s-1)
Scaling fators (text file)
AC#
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
SF
1.51
1.84
1.61
1.57
1.62
1.65
1.61
1.66
1.83
1.74
1.50
1.65
1.28
E*
0.24
0.28
0.30
0.31
0.30
0.33
0.25
0.31
0.32
0.34
0.30
0.31
0.26














AC#
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
SF
1.78
1.73
1.46
1.46
1.51
1.77
1.57
1.53
1.82
1.53
1.71
1.27
E*
0.32
0.32
0.32
0.28
0.05
0.32
0.17
0.30
0.32
0.29
0.31
0.28

*The errors denote one standard deviation of fitting.

N2H+


<2010/5/25>

Date
Obs. Freq. [GHz]
Side Band
IF center freq. [GHz]
Backend
Target
2010/5/2, 25
93.173777
LSB
2.3
AC-32 MHz
W3(OH)a (VLSR = -45 km s-1)
Scaling fators (text file)
AC#
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
SF
2.04
1.85
1.82
2.06
1.76
2.42
2.19
2.13
2.23
1.78
1.93
2.14
2.62
E*
0.29
0.28
0.27
0.29
0.27
0.33
0.30
0.30
0.30
0.28
0.29
0.31
0.36














AC#
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
SF
1.91
2.09
2.28
2.26
2.23
2.39
1.79
2.05
1.85
1.94
2.69
2.09
E*
0.28
0.36
0.33
0.31
0.31
0.32
0.28
0.29
0.27
0.28
0.34
0.30

*The errors denote one standard deviation of fitting.