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Date and Time of the Query: 2019-06-19 T20:26:37 PDT
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Redshift data point(s) for object NGC 2998

21 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   4784   2   0.015958   0.000007   1998A&AS..130..333T
1 21-cm 4784   2   0.015958   0.000007   1998A&AS..130..333T
2 21-cm 4765   3   0.015894   0.000009   2005ApJS..160..149S
3 4770   3   0.015910   0.000010   2016SDSSD.C...0000:
4 21-cm HI line 4777   7   0.015934   0.000023   1991RC3.9.C...0000d
5 Optical lines 4767   12   0.015901   0.000040   1991RC3.9.C...0000d
6 Optical 4767   15   0.015901   0.000050   1992CORV..C...0000F
7 Optical 4690   41   0.015644   0.000137   1992CORV..C...0000F
8 Optical features 4777   49   0.015936   0.000165   2004SDSS3.C...0000:
9 Optical 4726   55   0.015764   0.000183   2000UZC...C......0F
10 Optical features > 30000     1.389300   0.003781   2004SDSS3.C...0000:
11 4765     0.015894     2013ApJ...771...88L
12 4767     0.015900     2013MNRAS.433.2986W
13 4770     0.015910     2012MNRAS.421.1569B
14 4772     0.015918     2015MNRAS.447.1531C
15 4772     0.015918     2015MNRAS.448.1767C
16 4772     0.015918     2016AJ....152...50T
17 4772     0.015918     2013AJ....146...86T
18 4772     0.015918     2014MNRAS.444..527S
19 4773     0.015922     2015MNRAS.448.3442G
20 Optical 4785     0.015961     1992CORV..C...0000F
21 4786     0.015966     2015ApJ...812...89M

Detailed information for each entry

No. 1
Name in publication  : PGC 028196                    
Coordinates          : 094534.                  +441850.         B1950
Features targeted    : 21-cm                         
Velocity or redshift :  4784           km/s                     z=   0.015958
Uncertainty          : +/-2                                     +/-  0.000007
Unc. Significance    : mean error
Reference Code       : 1998A&AS..130..333T

Measurement Mode     :
    Spectral range   : Radio
    Spectrograph     : Heterodyne receiver(e.g., 21-cm)
    Features         : 1 Emission lines
    Technique        : Mid-point of line profile at 20% lvel
    Spatial mode     : Redshift is systemic

Reference Frame      : Heliocentric velocity or redshift
Qualifiers           : From new, raw data

NED Comment          :                                         



No. 2 Name in publication : UGC 05250 Coordinates : 094843.6 +440450 J2000 Features targeted : 21-cm Velocity or redshift : 4765 km/s z= 0.015894 Uncertainty : +/-2 +/- 0.000009 Unc. Significance : estimated error Reference Code : 2005ApJS..160..149S Measurement Mode : Spectral range : Radio Spectrograph : Heterodyne receiver(e.g., 21-cm) Features : 1 Emission lines Technique : Mid-point of line profile at 50% lvel Spatial mode : Redshift is systemic Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment : 'Quality' Good. Green Bank 91-m data.


No. 3 Name in publication : Coordinates : Features targeted : Velocity or redshift : 0.015910111 z= 0.015910 Uncertainty : +/-1.0258602E-5 +/- 0.000010 Unc. Significance : uncertainty Reference Code : 2016SDSSD.C...0000: Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 4 Name in publication : UGC 05250 Coordinates : 094534.3 +441850 B1950 Features targeted : 21-cm HI line Velocity or redshift : 4777 km/s z= 0.015934 Uncertainty : +/-7 +/- 0.000023 Unc. Significance : rms uncertainty Reference Code : 1991RC3.9.C...0000d Measurement Mode : Spectral range : Radio Reference Frame : Heliocentric velocity or redshift Qualifiers : Homogenized from new and previously published data NED Comment :


No. 5 Name in publication : UGC 05250 Coordinates : 094534.3 +441850 B1950 Features targeted : Optical lines Velocity or redshift : 4767 km/s z= 0.015901 Uncertainty : +/-12 +/- 0.000040 Unc. Significance : rms uncertainty Reference Code : 1991RC3.9.C...0000d Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : Homogenized from new and previously published data NED Comment :


No. 6 Name in publication : NGC 2998 Coordinates : 094534.3 +441850. B1950 Features targeted : Optical Velocity or redshift : 4767 km/s z= 0.015901 Uncertainty : +/-15 +/- 0.000050 Unc. Significance : uncertainty Reference Code : 1992CORV..C...0000F Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment : From 1980ApJ...238..471R


No. 7 Name in publication : NGC 2998 Coordinates : 094534.3 +441850. B1950 Features targeted : Optical Velocity or redshift : 4690 km/s z= 0.015644 Uncertainty : +/-41 +/- 0.000137 Unc. Significance : uncertainty Reference Code : 1992CORV..C...0000F Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment : From 1978AJ.....83..904S


No. 8 Name in publication : SDSS J094843.63+440453.2 Coordinates : 147.181793 44.081440 J2000 Features targeted : Optical features Velocity or redshift : 0.015936 z= 0.015936 Uncertainty : +/-0.000165 +/- 0.000165 Unc. Significance : uncertainty Reference Code : 2004SDSS3.C...0000: Measurement Mode : Spectral range : Optical Spectrograph : Fiber-optic feed Features : Absorption lines Technique : Cross-correlation fit to template spectrum Spatial mode : Redshift is for nucleus only Reference Frame : Heliocentric velocity or redshift Qualifiers : From new, raw data NED Comment : z_em and z_xcorr are inconsistent


No. 9 Name in publication : UZC J094843.6+440452 Coordinates : 094843.6 +440452. J2000 Features targeted : Optical Velocity or redshift : 4726 km/s z= 0.015764 Uncertainty : +/-55 +/- 0.000183 Unc. Significance : uncertainty Reference Code : 2000UZC...C......0F Measurement Mode : Spectral range : Optical Features : Absorption lines Technique : Cross-correlation fit to template spectrum Spatial mode : Redshift is systemic Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment :


No. 10 Name in publication : SDSS J094843.63+440453.2 Coordinates : 147.181793 44.081440 J2000 Features targeted : Optical features Velocity or redshift : 1.389300 z= 1.389300 Uncertainty : +/-0.003781 +/- 0.003781 Unc. Significance : uncertainty Reference Code : 2004SDSS3.C...0000: Measurement Mode : Spectral range : Optical Spectrograph : Fiber-optic feed Features : Emission lines Technique : Individual line fitting Spatial mode : Redshift is for nucleus only Reference Frame : Heliocentric velocity or redshift Qualifiers : From new, raw data NED Comment : z_em and z_xcorr are inconsistent


No. 11 Name in publication : NGC 2998 Coordinates : 094843.6303 +440452.716 J2000 Features targeted : Velocity or redshift : 4765 km/s z= 0.015894 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2013ApJ...771...88L Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 12 Name in publication : NGC 2998 Coordinates : 094843.6342 +440453.148 J2000 Features targeted : Velocity or redshift : 4767 km/s z= 0.015900 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2013MNRAS.433.2986W Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 13 Name in publication : SDSS J094843.63+440453.1 Coordinates : 094843.6342 +440453.148 J2000 Features targeted : Velocity or redshift : 4770 km/s z= 0.015910 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2012MNRAS.421.1569B Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 14 Name in publication : Coordinates : Features targeted : Velocity or redshift : 4772 km/s z= 0.015918 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2015MNRAS.447.1531C Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 15 Name in publication : Coordinates : Features targeted : Velocity or redshift : 4772 km/s z= 0.015918 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2015MNRAS.448.1767C Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 16 Name in publication : Coordinates : Features targeted : Velocity or redshift : 4772 km/s z= 0.015918 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2016AJ....152...50T Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 17 Name in publication : UGC 05250 Coordinates : 094843.6 +440452.9 J2000 Features targeted : Velocity or redshift : 4772 km/s z= 0.015918 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2013AJ....146...86T Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 18 Name in publication : Coordinates : Features targeted : Velocity or redshift : 0.015918 z= 0.015918 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2014MNRAS.444..527S Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 19 Name in publication : Coordinates : Features targeted : Velocity or redshift : 0.0159223 z= 0.015922 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2015MNRAS.448.3442G Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 20 Name in publication : NGC 2998 Coordinates : 094534.3 +441850. B1950 Features targeted : Optical Velocity or redshift : 4785 km/s z= 0.015961 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 1992CORV..C...0000F Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment : From 1983ApJS...52..425S


No. 21 Name in publication : Coordinates : Features targeted : Velocity or redshift : 4786.4 km/s z= 0.015966 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2015ApJ...812...89M Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :



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