Update to Standards File 05/14/01
2MASS Calibration Standards
Calibration Standards
The following is a list of updated (05/14/2001) calibration fields.
Information as to the primary position and the number of secondaries is given.
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.
|
standard field
|
ra(J2000)
|
dec(J2000)
|
# secondaries (12/99)
|
# secondaries (05/01)
|
avg(Jdmag)
|
avg(Hdmag)
|
avg(Kdmag)
|
|
FS4
|
28.65715
|
0.71721
|
24
|
23
|
0.001
|
0.001
|
-0.001
|
|
Oph_n9b
|
246.78402
|
-24.70779
|
26
|
22
|
0.005
|
0.001
|
0.005
|
|
FS13
|
89.28127
|
0.01977
|
40
|
39
|
0.003
|
0.002
|
0.000
|
|
BRI0021-0214
|
6.10250
|
-1.97226
|
25
|
25
|
0.003
|
0.001
|
-0.001
|
|
M67-FS16
|
132.81282
|
11.82261
|
35
|
31
|
0.002
|
0.001
|
0.004
|
|
M67-FS15
|
132.77411
|
11.72978
|
35
|
31
|
0.002
|
0.001
|
0.004
|
|
M67-FS17
|
132.83215
|
11.86972
|
35
|
31
|
0.002
|
0.001
|
0.004
|
|
P091-D
|
145.74361
|
59.06186
|
25
|
23
|
0.004
|
-0.001
|
0.003
|
|
S121-E
|
97.37250
|
-59.65861
|
34
|
34
|
0.004
|
0.004
|
0.002
|
|
P161-D
|
105.21591
|
48.48988
|
43
|
43
|
0.002
|
0.000
|
0.001
|
|
P182-E
|
279.89110
|
49.09385
|
35
|
34
|
0.004
|
0.000
|
-0.000
|
|
LHS191
|
66.58316
|
3.61061
|
34
|
34
|
0.001
|
0.000
|
-0.002
|
|
S217-D
|
180.43833
|
-50.05278
|
28
|
26
|
0.001
|
0.002
|
0.001
|
|
S234-E
|
307.83169
|
-49.64665
|
28
|
26
|
0.002
|
0.005
|
0.002
|
|
P247-U
|
53.01092
|
37.34434
|
37
|
36
|
0.005
|
0.001
|
0.001
|
|
P266-C
|
183.60583
|
35.59861
|
23
|
22
|
0.006
|
0.002
|
0.003
|
|
P272-D
|
224.63834
|
37.14229
|
21
|
21
|
0.003
|
0.002
|
0.004
|
|
P273-E
|
224.21437
|
-44.82060
|
20
|
20
|
0.003
|
0.003
|
0.000
|
|
S279-F
|
267.09260
|
-45.42915
|
26
|
26
|
0.002
|
0.003
|
-0.002
|
|
P290-D
|
352.63917
|
38.31583
|
20
|
20
|
0.012
|
0.019
|
0.003
|
|
S301-D
|
51.72746
|
-39.84754
|
30
|
30
|
0.003
|
0.004
|
0.001
|
|
S312-T
|
126.39802
|
-39.09920
|
26
|
25
|
0.000
|
0.001
|
0.000
|
P330-E
|
247.89098
|
30.14634
|
43
|
42
|
0.004
|
0.000
|
0.002
|
P533-D
|
55.25920
|
6.93804
|
36
|
35
|
0.003
|
0.003
|
-0.000
|
|
S294-D
|
8.31258
|
-39.40286
|
11
|
11
|
0.001
|
0.004
|
-0.000
|
|
s547_15
|
282.83406
|
-4.23394
|
33
|
25
|
0.000
|
0.002
|
-0.004
|
|
P565-C
|
246.67862
|
5.87329
|
36
|
34
|
0.004
|
0.001
|
-0.000
|
|
S808-C
|
285.48083
|
-4.48667
|
11
|
11
|
0.002
|
0.001
|
0.004
|
|
S813-D
|
310.27262
|
-5.06199
|
35
|
30
|
0.005
|
0.004
|
0.001
|
|
S860-D
|
185.41375
|
-0.12028
|
20
|
19
|
0.003
|
0.003
|
0.003
|
|
S867-V
|
220.24167
|
-0.46306
|
23
|
21
|
0.006
|
0.002
|
0.002
|
|
T868-53850
|
225.10993
|
-0.65801
|
18
|
16
|
0.004
|
-0.000
|
0.001
|
|
S893-D
|
349.54167
|
0.54889
|
25
|
24
|
0.005
|
0.006
|
0.000
|
|
LHS2026
|
128.12669
|
-1.57726
|
38
|
38
|
0.002
|
0.001
|
0.001
|
|
BRI2202-1119
|
331.39902
|
-11.07456
|
15
|
15
|
0.005
|
0.004
|
0.001
|
|
LHS2397a
|
170.45507
|
-13.21893
|
36
|
35
|
0.003
|
0.004
|
0.002
|
|
ABELL2409
|
330.13542
|
20.78097
|
36
|
33
|
0.006
|
0.001
|
-0.001
|
Comments and feedback: Sherry Wheelock
email: slw@ipac.caltech.edu
Last update: 14 May 2001 slw@ipac.caltech.edu