NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-20 T22:14:26 PDT
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Position data point(s) for object PKS 1657-298

5 position data point(s) found in NED.


No.Equatorial J2000.0Frequency or WavelengthUncertainty EllipseReference Code
LongitudeLatitudeSemi-Maj.(arcsec) Semi-Min.PA
0 17h01m09.712s -29d54m41.82s   1.10 1.00   1996AJ....111.1945D
1 17h01m09.75s -29d54m40.7s 1.50 1.50   2013MNRAS.434..956C
2 17h01m09.75s -29d54m40.7s 2.50 2.50   2011MNRAS.417.2651M
3 17h01m09.14s -29d54m42.3s 408 MHz 7.50 6.51   1981MNRAS.194..693L
4 17h01m09.8s -29d54m40s 15.00 15.00   2012AJ....143...35P
5 17h01m10.5s -29d54m07s 4.85 GHz 30.00 25.00   1996ApJS..103..145W

Detailed information for each entry

No. 1
------------------------ NED STANDARD FORMAT ------------------------- Equatorial J2000.0: 17h01m09.75s -29d54m40.7s Equatorial B1950.0: 16h57m58.91s -29d50m19.4s 95% Conf. Ellipse : 1.50e+00 1.50e+00 arcsec NED comment : ---------------------- MEASUREMENT AS PUBLISHED ---------------------- Published Name : AT20G J170109-295440 Coord1/Coord2 : HHMMSS: 170109.75 DDMMSS: -295440.7 Unc1/Unc2/UncPA : 1.5 1.5 Unc. Significance : Uncertainty in arcseconds Equinox/Epoch : J2000.0 Freq. or Wave. : Sys/Units/Frame : Equatorial Sexagesimal Frequency Mode : Qualifiers : Uncertain origin Reference Code :
2013MNRAS.434..956C
No. 2
------------------------ NED STANDARD FORMAT ------------------------- Equatorial J2000.0: 17h01m09.75s -29d54m40.7s Equatorial B1950.0: 16h57m58.91s -29d50m19.4s 95% Conf. Ellipse : 2.50e+00 2.50e+00 arcsec NED comment : ---------------------- MEASUREMENT AS PUBLISHED ---------------------- Published Name : AT20G J170109-295440 Coord1/Coord2 : HHMMSS: 170109.75 DDMMSS: -295440.7 Unc1/Unc2/UncPA : 2.5 2.5 Unc. Significance : Uncertainty in arcseconds Equinox/Epoch : J2000.0 Freq. or Wave. : Sys/Units/Frame : Equatorial Sexagesimal Frequency Mode : Qualifiers : Uncertain origin Reference Code :
2011MNRAS.417.2651M
No. 3
------------------------ NED STANDARD FORMAT ------------------------- Equatorial J2000.0: 17h01m09.14s -29d54m42.3s Equatorial B1950.0: 16h57m58.30s -29d50m21.0s 95% Conf. Ellipse : 7.50e+00 6.51e+00 arcsec 180 deg NED comment : ---------------------- MEASUREMENT AS PUBLISHED ---------------------- Published Name : MRC 1657-298 Coord1/Coord2 : HHMMSS: 165758.3 DDMMSS: -295021. Unc1/Unc2/UncPA : 0.2 3. deg Unc. Significance : Uncertainty in time seconds and arcseconds; rms uncertainty Equinox/Epoch : B1950.0 Freq. or Wave. : 408 MHz (OBS)=4.08E+08 Hz Sys/Units/Frame : Equatorial Sexagesimal FK4 Frequency Mode : Broad-band measurement Qualifiers : From new, raw data Reference Code :
1981MNRAS.194..693L
No. 4
------------------------ NED STANDARD FORMAT ------------------------- Equatorial J2000.0: 17h01m09.8s -29d54m40s Equatorial B1950.0: 16h57m59.0s -29d50m19s 95% Conf. Ellipse : 1.50e+01 1.50e+01 arcsec NED comment : ---------------------- MEASUREMENT AS PUBLISHED ---------------------- Published Name : IERS B1657-298 Coord1/Coord2 : HHMMSS: 170109.85 DDMMSS: -295440.3 Unc1/Unc2/UncPA : 15. 15. Unc. Significance : Uncertainty in arcseconds Equinox/Epoch : J2000.0 Freq. or Wave. : Sys/Units/Frame : Equatorial Sexagesimal Frequency Mode : Qualifiers : Uncertain origin Reference Code :
2012AJ....143...35P
No. 5
------------------------ NED STANDARD FORMAT ------------------------- Equatorial J2000.0: 17h01m10.5s -29d54m07s Equatorial B1950.0: 16h57m59.7s -29d49m46s 95% Conf. Ellipse : 3.00e+01 2.50e+01 arcsec 0 deg NED comment : ---------------------- MEASUREMENT AS PUBLISHED ---------------------- Published Name : PMN J1701-2954 Coord1/Coord2 : HHMMSS: 170110.5 DDMMSS: -295407. Unc1/Unc2/UncPA : 10. 12. deg Unc. Significance : Uncertainty in arcseconds; rms uncertainty Equinox/Epoch : J2000.0 1992.88 Freq. or Wave. : 4.85 GHz (OBS)=4.85E+09 Hz Sys/Units/Frame : Equatorial Sexagesimal FK5 Frequency Mode : Broad-band measurement Qualifiers : From new, raw data Reference Code :
1996ApJS..103..145W

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