VLBI International Celestial Reference Frame (ICRF) (Ma+, 1997)
Right Ascension(J2000).Cos(Declination) mas
mas
Declination(J2000) mas
mas
Number of sessions
Number of observation
IERS designation
1989.00 |
.4049E+00 |
.2133E+01 |
.1845E+01 |
.9998E+01 |
1 |
3 |
0. |
0657+172 |
1990.00 |
.2683E+00 |
.1036E+00 |
.4879E-01 |
.1526E+00 |
19 |
130 |
0. |
0657+172 |
1991.00 |
-.3816E-01 |
.7351E-01 |
.8689E-01 |
.9973E-01 |
28 |
189 |
0. |
0657+172 |
1992.00 |
-.2737E-01 |
.5000E+00 |
.7648E+00 |
.7478E+00 |
1 |
16 |
0. |
0657+172 |
1993.00 |
-.1551E+00 |
.4561E+00 |
.1103E+01 |
.5392E+00 |
3 |
54 |
0. |
0657+172 |
1994.00 |
.1629E+00 |
.1669E+00 |
-.1568E+00 |
.2162E+00 |
10 |
135 |
0. |
0657+172 |
1995.00 |
.1335E-01 |
.1007E+00 |
-.9681E-01 |
.1064E+00 |
5 |
199 |
0. |
0657+172 |
1996.00 |
.1728E+00 |
.9331E-01 |
.5689E-01 |
.1102E+00 |
4 |
152 |
0. |
0657+172 |
1997.00 |
.7835E-01 |
.1420E+00 |
-.3312E+00 |
.1638E+00 |
6 |
150 |
0. |
0657+172 |
1998.00 |
-.7641E-01 |
.8683E-01 |
.8073E-01 |
.1010E+00 |
6 |
125 |
0. |
0657+172 |
1999.00 |
-.2865E-01 |
.7185E-01 |
-.3555E-01 |
.7288E-01 |
7 |
431 |
0. |
0657+172 |
2000.00 |
-.1588E+00 |
.8930E-01 |
.1194E+00 |
.9848E-01 |
7 |
481 |
0. |
0657+172 |
2001.00 |
-.7521E-01 |
.4740E-01 |
-.4218E-01 |
.4859E-01 |
17 |
437 |
0. |
0657+172 |