3189 small blue smudge 20arcsec NW, perhaps responsible for asymmetric HI 
 3189  profile? ALFALFA detection code 2. 
 3439 ALFALFA detection code 2. 
 3465 ALFALFA detection code 2.
 3509 RFI spikes at 1350 and 1352.2MHz (~15100 and 15500km/s); small galaxy 
 3509  ~2arcmin S has z=0.122, no contamination problems.
 3519 superposed on early type galaxy without z: galaxy pair or superposition 
 3519  effect? Disk galaxy ~1arcmin E has z=0.0597, no contamination problems. 
 3519  Stronger in polarization A but OK (polarization B has noisy baseline).
 3918 low frequency edge uncertain, systematic error.
 3977 ALFALFA detection code 2. 
 3981 stronger in polarization A.
 4030 there seems to be a hint of signal from another galaxy at 1358-59MHz 
 4030  (~13700km/s, no RFI there). Perhaps the small red galaxy ~1.5arcmin SW? 
 4030  There are two other galaxies, even smaller or farther away.
 4038 high frequency edge uncertain, systematic error.
 4039 blue companion ~1.7arcmin E (z=0.0260, 1384.41MHz); another blue galaxy 
 4039  ~1.5arcmin SW has z=0.081, no contamination problems; 
 4039  ALFALFA detection code 2.
 4048 boards centered at wrong frequency by mistake.
 4057 275mJy continuum source 1.5arcmin away, standing waves; high frequency 
 4057  edge uncertain, systematic error; ALFALFA detection code 2.
 4137 low frequency edge uncertain, systematic error. Small galaxy ~1arcmin S 
 4137 has z=0.155, no contamination problems.
 4145 notice small blue galaxy attached to GASS 4145, no redshift from SDSS, 
 4145  perhaps partly responsible for asymmetric profile (which is also not well
 4145  centered on SDSS redshift). Companion galaxy ~3arcmin SW, 
 4145  SDSS J015509.55+125746.1 (z=0.032774, 1375.33MHz) not detected on the 
 4145  side away from GASS 4145, thus unlikely to contribute to the HI signal.
 4223 several galaxies within ~3arcmin and with SDSS redshift, all with z>0.08 
 4223  except SDSS J015717.50+144327.2 (disk galaxy ~1.5arcmin SE, z=0.027101, 
 4223  1382.93MHz) and SDSS J015705.49+144256.0 (small galaxy ~2.5arcmin SW, 
 4223  z=0.025304, 1385.35MHz). In both cases, no HI emission is detected in the
 4223  half side that is moving away from GASS 4223, thus significant 
 4223  contamination is unlikely. Uncertain profile; ALFALFA detection code 2.
 4233 confused: two blue companions with the same redshift 
 4233  (SDSS J015710.06+145500.9, ~1arcmin SE and SDSS J015708.74+145247.4, 
 4233  ~3arcmin S).
 5035 high frequency edge uncertain, systematic error. 
 6749 small blue companion ~40arcsec SW, SDSS J130748.37+031057.1, z=0.0378 
 6749  (1368.67MHz), some contamination certain (notice that higher peak on the 
 6749  low velocity side is centered on the companion).
 7520 high frequency edge uncertain, systematic error. Stronger in 
 7520  polarization A. Small blue companion ~3arcmin N 
 7520  (SDSS J143318.34+024205.0, z=0.028104, 1381.58MHz).
 9585 two very small companions within ~1.5arcmin, one has the same z (0.0336),
 9585  the other has z=0.0298 (1379.30MHz) and is not detected.
10831 galaxy group: there are five galaxies within 3arcmin E of GASS 10831, 
10831  three of which with redshift z=0.026, one with redshift z=0.029669 and 
10831  the largest one without redshift from SDSS. Very broad HI profile is 
10831  likely blend of emission of gas from and/or between these galaxies. 
10831  Uncertain profile.
10844 most HI likely coming from very blue companion ~ 1arcmin NE, same z 
10844  (0.0270); other galaxy ~1arcmin SE has z=0.154.
10850 RFI spikes above 1374MHz (~10000km/s).
10856 blend with GASS 10831 (SDSS J220322.59+123857.6, z=0.027346), ~2arcmin SW.
10889 confused with UGC 11948? UGC 11948 is ~3.5arcmin W, no SDSS spectroscopy,
10889  but is in the S05 archive (cz=7960km/s, observed flux of 2.63Jy.km/s, 
10889  W50=343km/s).
10985 RFI at 1350MHz (~15600km/s).
11003 blend with GASS 11004 (SDSS J223707.71+141355.0, z=0.037666, detected by 
11003  ALFALFA and in the S05 archive), ~2.5arcmin SW. Notice also blue 
11003  companion ~1arcmin SW without SDSS redshift.
11013 high frequency edge uncertain, systematic error.
11015 most of the signal likely comes from SDSS J223654.54+142452.0, a large, 
11015  blue disk ~2arcmin W, z=0.0365 (1370.39MHz).
11019 stronger in polarization B.
11055 high frequency edge uncertain, systematic error; clear detection but 
11055  uncertain HI parameters.
11071 low frequency edge uncertain, systematic error.
11120 high frequency edge uncertain, systematic error; stronger in 
11120  polarization B.
11126 RFI at 1358.3MHz (~13700km/s).
11231 ALFALFA detection code 2.
11250 ALFALFA detection code 2.
11268 5 other galaxies within 3arcmin, most at slightly smaller redshift; the 
11268  largest is GASS 11267, ~1arcmin SE (z=0.040047, 1365.75MHz, i.e. 2.3MHz 
11268  higher than GASS 11268), not clearly detected here (also targeted 
11268  separately and listed as a non-detection). The bump in the baseline next 
11268  to the HI profile, on the low velocity side, is most likely due to these 
11268  companions, but the HI signal does not seem significantly affected.
11270 low frequency edge uncertain, systematic error; much clearer in 
11270  polarization B.
11285 high frequency edge uncertain, systematic error.
11303 low frequency edge uncertain, systematic error.
11314 blend with GASS 11311 (SDSS J231229.22+135632.1, z=0.034137, ALFALFA 
11314  detection), ~1.5arcmin E. Notice also GASS 11312 
11314  (SDSS J231225.99+135450.1, z=0.033927), ~2arcmin S. Low frequency edge 
11314  uncertain, systematic error.
11383 strong detection at ~1375.5MHz in boards 3 and 4, perhaps the blue galaxy 
11383  ~30arcsec SW (SDSS J232547.39+140245.2, no redshift)? The negative peak 
11383  in the baseline at 1374MHz (~10100km/s) is present in 4-min pairs only, 
11383  most likely due to a galaxy in the off scan (there is a small blue galaxy
11383  at that position without SDSS redshift). ALFALFA detection code 2.
11462 companion ~2arcmin E (SDSS J231803.74+135400.8, z=0.040677) possibly 
11462  responsible for the enhanced peak at ~12100km/s.
11513 uncertain profile, marginal detection.
11514 uncertain profile; marginal detection, stronger in polarization B. Small 
11514  galaxy 20arcsec SW, no optical redshift.
11763 blend with blue companion, SDSS J234155.60+ 151345.9 (z=0.025333), 
11763  ~30arcsec SW.
11808 low frequency edge uncertain, systematic error.
11815 Blue companion ~2arcmin SE, SDSS J235313.68+ 160228.3 (z=0.048889, 
11815  1354.20MHz); notice also blue galaxy ~1arcmin SE, no SDSS redshift. 
11815  Confused. RFI double spike at 1351MHz (outside galaxy profile), eight 
11815  channels replaced by interpolation.
11824 RFI spike at 1374.2MHz (~10000km/s).
11834 RFI at 1366-68MHz (11600-11900km/s). Blue disk ~1arcmin S, no redshift, 
11834  contamination possible. ALFALFA detection code 2.
11845 RFI spike at 1375MHz (~9800km/s); blend, profile peaks uncertain. Blue 
11845  companion, SDSS J235645.33+135216.4, ~2arcmin S with the same redshift, 
11845  some contamination certain; notice that the companion is GASS 11774 
11845  (AGC 331022), detected in both ALFALFA and S05 archive (observed flux of 
11845  1.96Jy.km/s, cz=10939km/s, W50=323km/s).
11917 blend with blue companion, SDSS J000744.11+ 151013.3 (z=0.045049), 
11917  ~1arcmin S.
12318 very likely blended with SDSS J111440.82+040039.8 ~1arcmin SW, z=0.040675
12318  (1364.89MHz); perhaps hint of HI from another companion ~ 1arcmin SE, 
12318  SDSS J111447.92+040058.6, with z=0.038769 (1367.89MHz, ~11600km/s). 
13158 profile peaks uncertain. Three small galaxies within ~1.5arcmin: two with
13158  redshifts close to that of GASS 13158 (z=0.0400 and 0.0401, which are 
13158  displaced enough from the target that should be visible if detected), and
13158  one without optical z; ALFALFA detection code 2. 
15151 ALFALFA detection code 2.
15166 1.4Jy continuum source at 6.5arcmin and 26mJy at 1arcmin, standing waves, 
15166  poor baseline fit.
15211 early-type companion ~2arcmin E, strong contamination unlikely.
18087 Three galaxies within 4arcmin and with SDSS redshifts are in the 
18087  background.
18673 two small blue galaxies within 1arcmin, no SDSS redshift; two galaxies 
18673  at ~2.5arcmin S and SW have z=0.08.
18681 detected blue companion in board 4, ~1395.3MHz: UGC 5308, 2arcmin N, 
18681  z=0.017872 from NED (1395.47MHz). Small disk galaxy ~1arcmin N, 
18681  SDSS J095323.73+075113.7 (z=0.039586), unlikely to contaminate HI signal.
18686 UGC 5304, blue galaxy pair, ~2arcmin NE (one of the two galaxies, 
18686  SDSS J095310.37+075224.8, has z=0.0407, the other has no redshift in 
18686  SDSS), some contamination certain.
18702 the galaxy ~1.5arcmin W has z=0.097. A few small galaxies without SDSS 
18702  redshift within 1arcmin, one of which is likely responsible for the 
18702  narrow spike within the HI profile.
18707 ALFALFA detection code 2.
18798 high frequency edge uncertain, systematic error. Marginal detection. Small
18798  galaxy 80arcsec E, SDSS J101334.44+075423.7, z=0.045321 (1358.82MHz). 
18798  Notice asymmetric light distribution of GASS 18798 opposite to companion.
18798  Two other small galaxies within 2arcmin have z=0.162. Clearer in 
18798  polarization B.
18862 blue companion ~1.5arcmin S, offset by 0.8MHz in frequency 
18862  (SDSS J102241.78+081833.0, z=0.045199, 1358.98MHz), does not appear to 
18862  contaminate the HI signal significantly; also notice companion ~3arcmin N
18862  (SDSS J102236.67+082237.8, z=0.044278, 1360.18MHz). 
20292 ALFALFA detection code 2. 
20448 detected also blue companion, ~2arcmin NW (SDSS J095808.05+110832.2, 
20448  z=0.030958).
23026 two companions (SDSS J102726.74+110543.9, ~1.5arcmin NE, z=0.032848 and 
23026  SDSS J102714.26+ 110340.0, ~2arcmin SW, z=0.032969), some contamination 
23026  possible. Detected another companion centered at cz~8700km/s and 
23026  without SDSS redshift, perhaps SDSS J102715.87+110518.0 (small and blue, 
23026  strong UV emission, ~ 1.5arcmin NW)?
23757 profile edges uncertain, systematic error. 
24437 blend with blue companion, SDSS J123946.66+ 133159.8 (z=0.046494), 
24437  ~1arcmin SW. High frequency edge uncertain, systematic error.
25296 profile peaks uncertain.
26639 high frequency edge uncertain, systematic error. Signal present in both 
26639  polarizations, but with different shape. Blue companion ~2.5arcmin NE, 
26639  SDSS J104055.84+134823.1 (z=0.032261, 1376.01MHz), does not appear to be 
26639  detected.
27167 profile peaks uncertain. Galaxy ~1arcmin SE has z=0.018, no contamination 
27167  problems.
28482 blend: blue companion ~2.5arcmin E, SDSS J124317.30+111241.5 (z=0.027649, 
28482  1382.19MHz), and small blue satellite connected to GASS 28482 certainly 
28482  contributing to the HI signal.
29555 small blobs around without SDSS redshift. 
29892 blend with SDSS J112941.76+151851.3, very blue companion ~1.5arcmin SW 
29882  (z=0.037872, 1368.58MHz). Notice two other galaxies at ~3.5arcmin with 
29882  very similar redshift. ALFALFA detection code 2.
30854 small, almost face-on blue companion ~2.5arcmin SW (z=0.024564, 
30854  1386.35MHz) not detected.
38538 RFI spike at 1372MHz (~10500km/s).
38706 galaxy pair (UGC 9561/Arp 173), both galaxies are blue and morphologically
38706  disturbed; blend; profile edges uncertain.
38732 high frequency edge uncertain, systematic error. Marginal detection. 
38732  Companion galaxy ~1.5arcmin SSW, SDSS J145030.45+093626.5 (z=0.050193, 
38732  1352.52MHz), has a warped disk. Some contamination almost certain. Notice
38732  another two, smaller galaxies ~3arcmin from GASS 38732 with approximately
38732  the same redshift.
38923 detected companion? The feature at 1358MHz (~13800km/s) is real, and could
38923  be part of the HI profile of the blue galaxy ~4arcmin SE 
38923  (SDSS J145806.23+105716.3, z=0.045451, 1358.65MHz); there is also a small
38923  blue galaxy ~2arcmin SW, (SDSS J145751.90+105917.8, without redshift.
40260 RFI spike at 1372MHz (~10500km/s). Likely blend with 
40260  SDSS J135836.27+132858.6, a large disk galaxy ~2.5arcmin E, z=0.039954 
40260  (1365.84MHz; but SDSS fiber is not centered on the galaxy). Stronger in 
40260  polarization A.
40425 ALFALFA detection code 2.
41303 confused/blend with blue companion, SDSS J140749.05+094919.2 (z=0.037381, 
41303  1369.22MHz), a distorted spiral ~2arcmin E.
41783 uncertain profile, systematic error; ALFALFA detection code 2.
41793 marginal detection but well centered on SDSS redshift. Possible 
41793  contamination from small companion ~2arcmin N (SDSS J145843.76+080057.6, 
41793  z=0.037874, 1368.57MHz); also small galaxy ~25arcsec N, 
41793  SDSS J145840.87+075926.9, might be merging with GASS 41793.
42287 Small companion ~1.5arcmin SE (SDSS J154251.89+245826.3, z=0.033691), 
42287  marginal contamination possible; blue galaxy ~1.5arcmin NW has z=0.070.
44846 companion 2arcmin N (z=031119) is an elliptical galaxy, contamination 
44846  unlikely; blue disk ~2.5arcmin NE (z=0.028982, 1380.40MHz) not detected. 
44846  ALFALFA detection code 2.
46068 tiny companion 2arcmin N, SDSS J143709.19+ 251658.5, z=0.034017.
51190 high frequency edge uncertain, systematic error. Small blue galaxy 
51190  ~1arcmin E, no SDSS redshift, perhaps responsible for this very 
51190  asymmetric HI profile? Three galaxies ~2arcmin W of GASS 51190 all have 
51190  z>0.07.
56304 ALFALFA detection code 2.
56632 uncertain profile; companion galaxy ~3arcmin E, SDSS J090450.16+133342.8 
56632  (z=0.028346, 1381.25MHz), might contribute some signal.
57099 RFI spike at 1352.2MHz (~15100km/s). Disturbed optical appearance, 
57099  likely merging; blue companion ~2.5arcmin W, SDSS J104210.89+152136.1 
57099  (z=0.048828, 1354.28MHz), unlikely to contaminate signal significantly. 
 3508 detected companion, SDSS J011907.98+143555.6, ~2arcmin E 
 3508  (z=0.037748, 1368.74MHz). 
 3757 RFI spikes above 1373.5MHz (below ~10300km/s).
 3859 ~20arcsec from a spiral galaxy, no redshift in SDSS. Perhaps hint of 
 3859  signal centered at 1380.2MHz.
 3880 early type galaxy ~1arcmin E, similar redshift (z=0.0259).
 4040 detected companion (group?), cz~7900km/s. There are a few small galaxies 
 4040  within 2arcmin without SDSS redshift. Notice that NED lists a galaxy 
 4040  group (USGC U109) 2.7arcmin away, whose redshift is compatible with the 
 4040  detection (z=0.026055, 1384.34MHz).
 4119 the feature at 13000km/s is well centered on the blue companion ~2arcmin S
 4119  (SDSS J014632.27+135530.2, z=0.043488, 1361.21MHz), but the galaxy is 
 4119  clearly detected only in polarization A.
 9601 group: two companions with z=0.0330 (1375.03MHz; 20arcsec N, blue disk) 
 9601  and z=0.0307 (1378.10MHz; ~1arcmin SW) also not detected. Blue spiral 
 9601  ~2arcmin SE has z=0.146.
10012 marginal detection? Signal most likely dominated by edge-on disk 
10012  ~2.5arcmin E, z=0.0282 (1381.45MHz; GASS 10012 has z=0.0279).
10058 galaxy pair.
10297 negative feature at 1365MHz (~12100km/s) is not RFI and is present in 
10297  both polarizations.
10863 marginal detection? Notice also blue companion ~3arcmin NE, 
10863  SDSS J220857.85+132404.0 (z=0.027224, 1382.76MHz) that might contribute 
10863  to marginal signal.
10879 RFI spike at 1375MHz (far from galaxy), four channels replaced by 
10879  interpolation.
10952 near bright star.
10979 detected blue companion, SDSS J221900.09+131019.1, ~1arcmin S 
10979  (z=0.027923, 1381.82MHz).
11087 RFI spikes above 1374MHz (below ~10100km/s).
11267 companion of GASS 11268 (see detections), marginally detected here 
11267  (between 12300 and 12700km/s); four additional companions within 
11267  3arcmin, one of which is connected to 11267 by a stellar bridge. The 
11267  peak at ~12150km/s might be due to SDSS J231137.64+150443.8, a galaxy
11267  ~2arcmin SW with z=0.040764 (1364.77MHz).
11357 detected blue, irregular companion ~1arcmin NW, SDSS J232620.87+135857.0 
11357  (z=0.043973, 1360.58MHz).
11366 detected blue companion ~1arcmin SW, SDSS J232618.72+141150.5 
11366  (z=0.041754, 1363.48MHz).
11397 near bright star; detected blue companion ~2.5' SE, 
11397  SDSS J232453.13+142059.5 (z=0.040886, 1364.61MHz).
11582 detected companion in board 4, ~1377.5MHz: perhaps 
11582  SDSS J232751.00+142820.8, very blue gal. ~40arcsec E without redshift?
12002 RFI spike at 1375MHz (~9900km/s).
12005 blue companion ~2arcmin SW (SDSS J002416.73+ 144505.9, z=0.030938, 
12005  1377.78MHz) also not detected.
12970 galaxy group; GASS 12967 is 2arcmin N, same redshift; marginally detected 
12970  companion ~1arcmin SE, z=0.0412 (1364.20MHz)?
13091 blue galaxy ~80arcsec W has z=0.040424, well away from GASS 13091.
17840 detected blue companion in board 4, ~1391.5MHz: SDSS J111250.15+093139.1, 
17840  ~1arcmin W, z=0.020879 (1391.36MHz).
18482 detected blue companion, SDSS J123056.18+090548.9 (z=0.038956, 
18482  1367.15MHz), ~1arcmin NE.
18872 red companion (SDSS J102034.04+075106.5, ~1.5arcmin W, z=0.044115) also 
18872  not detected.
18875 three small companions within 2-4arcmin also not detected. 
20371 detected blue companion ~1.5arcmin E (SDSS J095407.95+103625.6, 
20371  z=0.040392).
23228 companion ~1.5arcmin SE, same redshift.
23437 detected blue, irregular companion ~2arcmin SW, SDSS J105144.24+115735.4 
23437  (z=0.046049, 1357.88MHz), but stronger in polarization B.
23563 small companion ~2.5arcmin S.
24366 hint of detection? It would be a 3.1 sigma detection, dubious. Companion 
24366  galaxy ~1.5arcmin NW (GASS 24364, SDSS J123936.04+122619.9, z=0.040856) 
24366  has a very disturbed morphology. Notice another galaxy ~4arcmin NE with 
24366  similar redshift (SDSS J123951.16+122646.8, z=0.040727).
25572 detected blue, asymmetric companion ~80arcsec E, SDSS J140705.05+130013.3 
25572  (z=0.027756, 1382.05MHz). The small peak at 8000km/s is present in 
25572  polarization A only.
25844 marginally detected companion, SDSS J091951.55+ 100812.9 ~2.5arcmin NW 
25844  (z=0.033534, 1374.32MHz).
26336 RFI spike at 1372MHz (~10500km/s). Two companions within 3arcmin.
28461 galaxy pair: the companion is GASS 28462, ~1arcmin W, also not detected.
28462 galaxy pair: the companion is GASS 28461, ~1arcmin E, also not detected.
28551 RFI spike at 1352.2MHz (~15100km/s). Small companion ~1arcmin SW, same 
28551  redshift.
30847 hint of detection? It would be a 3.8 sigma detection, dubious. Large 
30847  galaxy ~1.5arcmin NE (SDSS J141838.81+072238.4, z=0.025667, 1384.86MHz) 
30847  not detected.
38728 detected companion without SDSS redshift? Optical counterpart not obvious,
38728  perhaps SDSS J145052.31+094028.0 (~1arcmin NW)?
39120 hint of detection?
39211 hint of detection?
39600 GASS 39567, detected in DR1, is ~2.5arcmin S, different redshift 
39600  (z=0.031); blue galaxy ~2arcmin NW is in the foreground (z=0.006).
41444 marginally detected companion, a spiral galaxy ~2arcmin SW, 
41444  SDSS J141541.05+085318.4 (z=0.02942, 1379.81MHz), but signal is visible 
41444  in polarization B only; notice also two early-type galaxies within 
41444  2arcmin, no redshifts.
42011 detected companion, perhaps SDSS J151618.38+ 064812.9 (~1arcmin NE) or 
42011  SDSS J151609.56+064741.7 (small and blue, ~1.5arcmin W), both without 
42011  SDSS redshifts. Two other galaxies within 3arcmin have redshifts that do 
42011  not match the HI detection (SDSS J151610.69+064640.8, z=0.033492 and 
42011  SDSS J151618.58+064517.6, z=0.035204).
42174 edge-on disk ~2.5arcmin NE (z=0.033545, 1374.30MHz) also not detected.
46564 it looks like a marginal detection, but the signal is in polarization A 
46564  only, and is not well centered on the SDSS redshift; also galaxy has a 
46564  low inclination, not consistent with wide profile.
54233 companion 2arcmin N.
54763 small galaxy ~2arcmin SE (z=0.045834, 1358.16MHz) also not detected; 
54763  small galaxies without SDSS redshift nearby.
54986 companion (SDSS J105734.98+273020.4, z=0.04595, 1358.01MHz) ~1arcmin NW 
54986  also not detected.
56319 near bright star.