Swift-XRT Survey of Fermi Unassociated Sources

These results are part of the Swift program to follow-up Fermi unassociated sources in an attempt to find X-ray counterparts to the unidentified gamma-ray sources. As new observations are performed, these pages will be updated in nearly real time. Please use these results as a guide and proceed with caution when using them in a publication since they are the result of an automated analysis.

When using these data and results in publications, please reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949 for a description of many of the analysis techniques used to reduce these data (note: a more detailed paper describing the complete data set and analysis is forthcoming). Please contact Abe Falcone and Michael Stroh at unassociated@swift.psu.edu if you have any questions about the program or the analysis, or to simply to let us know that you've made use of these data.
Caution: For completeness, sources are listed if the "detection" exceeds 3 sigma. The significances and images are shown so you can make more stringent significance cuts, if desired.

1FGL J0308.6+7442

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J0308.6+7442 Swift-XRT detections in the field for 1FGL J0308.6+7442

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 03 05 39.77 +74 39 19.65 6.12 (1.4 ± 0.4) x 10-3 13 2.741 3.099

Rejected Excesses (Due to Overlaps or SNR(Sosta) < 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 03 08 20.91 +74 39 52.52 6.12 (1.4 ± 0.5) x 10-3 16 2.769 2.902
2 03 07 03.08 +74 41 03.60 6.04 (1.1 ± 0.4) x 10-3 17 2.460 2.510
3 03 06 36.18 +74 33 21.45 5.20 (1.2 ± 0.5) x 10-3 17 2.744 2.481
4 03 11 13.15 +74 42 17.78 6.04 (10 ± 4) x 10-4 12 2.476 2.474
5 03 07 31.09 +74 32 21.25 4.76 (1.2 ± 0.5) x 10-3 22 3.114 2.317

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0308.6+7442 Swift-XRT image with known radio, optical and UV sources for 1FGL J0308.6+7442

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 3XMM J030851.3+744207 03 08 51.38 +74 42 07.92 1.10 XMM-NEWTON
3XMM J030851.3+744206s 03 08 51.31 +74 42 05.76 1.11 XMM-NEWTON
2 3XMM J030830.7+744423s 03 08 30.67 +74 44 22.92 1.73 XMM-NEWTON
3XMM J030830.8+744424 03 08 30.96 +74 44 24.00 1.74 XMM-NEWTON
3XMM J030830.8+744424 03 08 30.62 +74 44 25.08 1.77 XMM-NEWTON
3 3XMM J030828.4+744052 03 08 28.44 +74 40 52.68 1.92 XMM-NEWTON
3XMM J030828.7+744052s 03 08 28.66 +74 40 51.96 1.93 XMM-NEWTON
4 3XMM J030805.9+744336s 03 08 05.95 +74 43 35.76 2.24 XMM-NEWTON
3XMM J030805.9+744336 03 08 05.98 +74 43 36.12 2.24 XMM-NEWTON
5 3XMM J030844.9+744454s 03 08 44.93 +74 44 54.24 2.25 XMM-NEWTON
3XMM J030844.8+744454 03 08 44.83 +74 44 54.60 2.26 XMM-NEWTON
3XMM J030844.8+744454 03 08 44.81 +74 44 55.32 2.27 XMM-NEWTON
6 3XMM J030756.0+744313 03 07 56.16 +74 43 14.16 2.75 XMM-NEWTON
3XMM J030756.1+744313s 03 07 56.50 +74 43 12.72 2.76 XMM-NEWTON
3XMM J030756.0+744313 03 07 56.21 +74 43 13.08 2.76 XMM-NEWTON
7 3XMM J030918.7+744323 03 09 18.77 +74 43 23.88 2.82 XMM-NEWTON
3XMM J030919.0+744322s 03 09 18.98 +74 43 21.72 2.83 XMM-NEWTON
8 3XMM J030823.0+743942s 03 08 23.30 +74 39 41.76 3.15 XMM-NEWTON
9 3XMM J030903.7+744537s 03 09 03.74 +74 45 37.08 3.40 XMM-NEWTON
10 3XMM J030826.1+744604s 03 08 26.71 +74 46 03.72 3.44 XMM-NEWTON
3XMM J030825.5+744604 03 08 25.58 +74 46 04.44 3.45 XMM-NEWTON
11 3XMM J030934.3+744343s 03 09 34.25 +74 43 42.60 3.89 XMM-NEWTON
3XMM J030934.4+744341 03 09 34.46 +74 43 41.88 3.90 XMM-NEWTON
12 3XMM J030827.6+744639s 03 08 27.60 +74 46 38.64 3.99 XMM-NEWTON
13 3XMM J030859.7+743850 03 08 59.76 +74 38 50.28 4.14 XMM-NEWTON
14 3XMM J030906.9+743902 03 09 06.91 +74 39 02.88 4.15 XMM-NEWTON
3XMM J030907.1+743902s 03 09 07.15 +74 39 01.80 4.18 XMM-NEWTON
3XMM J030859.3+743847s 03 08 59.33 +74 38 47.40 4.18 XMM-NEWTON
15 3XMM J030752.1+743926s 03 07 52.13 +74 39 26.28 4.42 XMM-NEWTON
16 3XMM J030809.1+743810s 03 08 09.60 +74 38 10.32 4.90 XMM-NEWTON
3XMM J030808.7+743810 03 08 08.78 +74 38 09.96 4.91 XMM-NEWTON
17 3XMM J030722.6+744126 03 07 22.80 +74 41 25.80 5.07 XMM-NEWTON
3XMM J030722.6+744126 03 07 22.54 +74 41 27.24 5.08 XMM-NEWTON
3XMM J030722.5+744125s 03 07 22.54 +74 41 25.08 5.09 XMM-NEWTON
18 3XMM J030806.9+744733s 03 08 06.94 +74 47 33.00 5.23 XMM-NEWTON
19 3XMM J030717.7+744234 03 07 17.81 +74 42 33.84 5.24 XMM-NEWTON
3XMM J030717.8+744234s 03 07 17.76 +74 42 34.20 5.24 XMM-NEWTON
3XMM J030806.8+744733 03 08 06.82 +74 47 33.36 5.25 XMM-NEWTON
3XMM J030717.7+744234 03 07 17.57 +74 42 35.64 5.25 XMM-NEWTON
3XMM J030806.8+744733 03 08 06.94 +74 47 34.08 5.25 XMM-NEWTON
20 3XMM J031000.4+744249s 03 10 00.36 +74 42 49.68 5.48 XMM-NEWTON
3XMM J031000.4+744249 03 10 00.48 +74 42 49.68 5.49 XMM-NEWTON
21 3XMM J030712.2+744156s 03 07 12.22 +74 41 55.68 5.66 XMM-NEWTON
3XMM J030712.0+744155 03 07 12.79 +74 41 56.04 5.67 XMM-NEWTON
3XMM J030712.0+744155 03 07 12.91 +74 41 54.96 5.67 XMM-NEWTON
22 3XMM J030712.4+744351 03 07 12.55 +74 43 51.24 5.69 XMM-NEWTON
3XMM J030712.3+744351s 03 07 12.34 +74 43 50.88 5.71 XMM-NEWTON
3XMM J030712.4+744351 03 07 12.17 +74 43 50.52 5.72 XMM-NEWTON
23 3XMM J030958.2+744510 03 09 57.34 +74 44 58.56 5.74 XMM-NEWTON
24 3XMM J030721.9+743947 03 07 21.96 +74 39 47.16 5.76 XMM-NEWTON
25 3XMM J030731.2+743847 03 07 31.44 +74 38 47.76 5.85 XMM-NEWTON
3XMM J030731.0+743848s 03 07 31.01 +74 38 47.76 5.87 XMM-NEWTON
3XMM J030731.2+743847 03 07 30.94 +74 38 46.68 5.88 XMM-NEWTON
3XMM J030958.9+744509s 03 09 58.94 +74 45 09.36 5.91 XMM-NEWTON
3XMM J030958.2+744510 03 09 58.56 +74 45 14.04 5.92 XMM-NEWTON
26 3XMM J030726.6+744626s 03 07 26.64 +74 46 26.40 5.96 XMM-NEWTON
27 3XMM J030957.7+744543 03 09 57.65 +74 45 43.92 6.10 XMM-NEWTON
3XMM J030958.0+744541s 03 09 58.20 +74 45 41.40 6.10 XMM-NEWTON
3XMM J030957.7+744543 03 09 58.01 +74 45 43.56 6.11 XMM-NEWTON
3XMM J030705.0+744351s 03 07 04.99 +74 43 51.24 6.18 XMM-NEWTON
28 3XMM J030742.5+743722 03 07 43.10 +74 37 23.16 6.42 XMM-NEWTON
29 3XMM J030923.9+743705s 03 09 23.88 +74 37 04.80 6.42 XMM-NEWTON
3XMM J030742.6+743723s 03 07 42.60 +74 37 22.80 6.43 XMM-NEWTON
3XMM J030742.5+743722 03 07 42.26 +74 37 22.44 6.45 XMM-NEWTON
3XMM J030923.6+743701 03 09 23.69 +74 37 00.84 6.47 XMM-NEWTON
30 3XMM J030700.9+744059 03 07 00.94 +74 40 59.52 6.58 XMM-NEWTON
3XMM J030701.0+744059s 03 07 00.96 +74 40 58.80 6.58 XMM-NEWTON
3XMM J030700.9+744059 03 07 00.91 +74 40 59.52 6.58 XMM-NEWTON
31 3XMM J030701.8+744449s 03 07 01.82 +74 44 49.56 6.63 XMM-NEWTON
32 3XMM J030947.0+744730 03 09 47.40 +74 47 30.48 6.64 XMM-NEWTON
3XMM J030947.5+744730s 03 09 47.47 +74 47 30.48 6.66 XMM-NEWTON
33 3XMM J031008.7+744553s 03 10 08.71 +74 45 53.64 6.81 XMM-NEWTON
34 3XMM J030945.6+743733 03 09 45.60 +74 37 33.24 6.86 XMM-NEWTON
3XMM J030945.3+743730s 03 09 45.31 +74 37 29.64 6.89 XMM-NEWTON
35 3XMM J030726.0+744811 03 07 26.30 +74 48 11.52 7.21 XMM-NEWTON
36 3XMM J030653.6+744526 03 06 53.88 +74 45 24.84 7.32 XMM-NEWTON
3XMM J030653.8+744526s 03 06 53.78 +74 45 25.56 7.33 XMM-NEWTON
3XMM J030653.6+744526 03 06 53.59 +74 45 27.00 7.35 XMM-NEWTON
37 3XMM J030700.1+744654s 03 07 00.79 +74 46 54.12 7.64 XMM-NEWTON
3XMM J030659.9+744654 03 06 59.95 +74 46 54.12 7.65 XMM-NEWTON
3XMM J030659.9+744654 03 06 59.93 +74 46 55.56 7.66 XMM-NEWTON
38 3XMM J030712.2+744803s 03 07 12.17 +74 48 02.88 7.73 XMM-NEWTON
3XMM J030712.0+744803 03 07 12.12 +74 48 02.88 7.73 XMM-NEWTON
3XMM J030712.0+744803 03 07 11.95 +74 48 03.24 7.74 XMM-NEWTON
39 3XMM J030626.2+744238 03 06 26.30 +74 42 38.16 8.63 XMM-NEWTON
40 3XMM J030810.7+743405 03 08 10.99 +74 34 06.96 8.77 XMM-NEWTON
3XMM J030810.8+743405s 03 08 10.75 +74 34 05.16 8.80 XMM-NEWTON
3XMM J030810.7+743405 03 08 10.56 +74 34 04.08 8.82 XMM-NEWTON
41 2RXS J030936.2+743447 03 09 36.19 +74 34 47.64 8.83 ROSAT
42 3XMM J030637.9+743819s 03 06 37.92 +74 38 18.96 9.02 XMM-NEWTON
43 3XMM J030622.6+744029 03 06 22.66 +74 40 29.64 9.15 XMM-NEWTON
44 3XMM J030621.8+744446 03 06 21.82 +74 44 46.68 9.15 XMM-NEWTON
3XMM J030622.5+744030s 03 06 22.54 +74 40 30.00 9.16 XMM-NEWTON
3XMM J030621.4+744446s 03 06 21.43 +74 44 45.60 9.17 XMM-NEWTON
45 1RXS J030943.8+743434 03 09 43.80 +74 34 34.68 9.25 ROSAT
46 3XMM J030725.1+745045s 03 07 25.61 +74 50 45.24 9.34 XMM-NEWTON
3XMM J030724.1+745044 03 07 24.17 +74 50 44.88 9.36 XMM-NEWTON
47 3XMM J030848.0+745220 03 08 47.74 +74 52 20.28 9.65 XMM-NEWTON
3XMM J030848.4+745220s 03 08 48.43 +74 52 20.28 9.66 XMM-NEWTON
3XMM J030848.0+745220 03 08 48.38 +74 52 21.36 9.68 XMM-NEWTON
48 3XMM J030654.9+743539 03 06 54.98 +74 35 39.12 9.77 XMM-NEWTON
3XMM J030654.3+743537s 03 06 54.29 +74 35 37.32 9.83 XMM-NEWTON
49 3XMM J030902.4+743259s 03 09 02.40 +74 32 59.28 9.86 XMM-NEWTON
50 3XMM J030607.2+744404 03 06 07.49 +74 44 03.48 9.95 XMM-NEWTON
3XMM J030607.5+744404s 03 06 07.46 +74 44 03.84 9.96 XMM-NEWTON
3XMM J030607.2+744404 03 06 07.15 +74 44 04.56 9.98 XMM-NEWTON
51 3XMM J030614.5+744612s 03 06 14.50 +74 46 12.00 10.02 XMM-NEWTON
3XMM J030614.3+744612 03 06 14.35 +74 46 12.36 10.03 XMM-NEWTON
3XMM J030614.3+744612 03 06 14.38 +74 46 13.08 10.03 XMM-NEWTON
52 3XMM J030859.0+745238s 03 08 59.30 +74 52 38.28 10.03 XMM-NEWTON
3XMM J030858.3+745239 03 08 58.39 +74 52 39.72 10.05 XMM-NEWTON
53 3XMM J030754.1+745225 03 07 54.17 +74 52 25.32 10.12 XMM-NEWTON
54 3XMM J030908.0+743229 03 09 07.54 +74 32 29.40 10.42 XMM-NEWTON
3XMM J030908.0+743229 03 09 08.52 +74 32 29.40 10.42 XMM-NEWTON
3XMM J030908.0+743228s 03 09 07.97 +74 32 27.96 10.44 XMM-NEWTON
55 3XMM J030629.8+744937s 03 06 29.78 +74 49 37.56 10.86 XMM-NEWTON
56 3XMM J031113.3+743837 03 11 13.32 +74 38 37.32 11.09 XMM-NEWTON
3XMM J031114.1+743838s 03 11 14.14 +74 38 38.40 11.14 XMM-NEWTON
57 3XMM J031031.3+743430 03 10 31.32 +74 34 30.36 11.15 XMM-NEWTON
3XMM J031030.9+743427s 03 10 30.89 +74 34 27.48 11.17 XMM-NEWTON
58 3XMM J031026.5+745122s 03 10 26.52 +74 51 21.96 11.24 XMM-NEWTON
3XMM J031025.4+745126 03 10 25.42 +74 51 26.28 11.25 XMM-NEWTON
59 3XMM J030856.7+743121 03 08 56.76 +74 31 21.36 11.43 XMM-NEWTON
3XMM J030857.1+743120s 03 08 57.70 +74 31 19.92 11.45 XMM-NEWTON
60 3XMM J030554.5+744707 03 05 54.53 +74 47 07.08 11.57 XMM-NEWTON
3XMM J030554.3+744706s 03 05 54.31 +74 47 06.36 11.58 XMM-NEWTON
61 3XMM J031006.1+745248s 03 10 06.91 +74 52 48.36 11.66 XMM-NEWTON
62 3XMM J030540.4+744222 03 05 40.44 +74 42 21.96 11.66 XMM-NEWTON
3XMM J031006.0+745248 03 10 06.10 +74 52 48.36 11.66 XMM-NEWTON
3XMM J031006.0+745248 03 10 05.98 +74 52 49.44 11.67 XMM-NEWTON
63 3XMM J030541.0+743921 03 05 41.21 +74 39 22.32 12.10 XMM-NEWTON
3XMM J030541.1+743921s 03 05 41.14 +74 39 20.88 12.10 XMM-NEWTON
3XMM J030541.0+743921 03 05 41.90 +74 39 20.52 12.11 XMM-NEWTON
64 3XMM J030556.1+744846 03 05 56.26 +74 48 46.44 12.19 XMM-NEWTON
3XMM J030556.0+744845s 03 05 56.30 +74 48 45.36 12.19 XMM-NEWTON
65 3XMM J030709.0+745327 03 07 09.50 +74 53 27.24 12.20 XMM-NEWTON
3XMM J030556.1+744846 03 05 55.94 +74 48 45.72 12.20 XMM-NEWTON
66 3XMM J030635.2+745159s 03 06 35.21 +74 51 59.40 12.26 XMM-NEWTON
3XMM J030635.0+745159 03 06 35.90 +74 51 59.40 12.26 XMM-NEWTON
3XMM J030635.0+745159 03 06 35.11 +74 51 59.76 12.26 XMM-NEWTON
67 3XMM J030545.2+744901s 03 05 45.19 +74 49 01.56 12.95 XMM-NEWTON
3XMM J030544.7+744901 03 05 44.78 +74 49 01.56 12.97 XMM-NEWTON
68 3XMM J030648.8+743059 03 06 48.86 +74 30 59.04 13.75 XMM-NEWTON
3XMM J030647.8+743055s 03 06 47.78 +74 30 55.08 13.84 XMM-NEWTON
69 3XMM J030629.7+745433 03 06 29.76 +74 54 33.48 14.50 XMM-NEWTON
70 3XMM J030547.6+743322 03 05 48.79 +74 33 21.96 14.59 XMM-NEWTON
3XMM J030547.2+743322s 03 05 47.23 +74 33 22.32 14.63 XMM-NEWTON
3XMM J030547.6+743322 03 05 47.30 +74 33 21.96 14.63 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J030958+744508 03 09 58.30 +74 45 09.00 5.87 NVSS
TGSSADR J030959.1+744512 03 09 59.21 +74 45 12.96 5.95 GMRTAS150M
TGSSADR J030650.2+744659 03 06 50.21 +74 46 59.88 8.24 GMRTAS150M
2 NVSS J030650+743822 03 06 50.30 +74 38 21.84 8.29 NVSS
WN 0301.3+7426 03 06 49.70 +74 38 25.08 8.29 WENSS
3 NVSS J030650+744715 03 06 50.81 +74 47 16.08 8.35 NVSS
WN 0301.3+7435 03 06 51.41 +74 47 21.84 8.37 WENSS
4 NVSS J031043+744132 03 10 43.39 +74 41 33.00 8.40 NVSS
VLSSr J030648.5+744721 03 06 48.50 +74 47 21.12 8.52 VLSSR
TGSSADR J030651.1+744745 03 06 51.10 +74 47 44.88 8.61 GMRTAS150M
5 8C 0301+746 03 06 47.40 +74 47 44.88 8.80 RRS8C38MHZ
6 NVSS J031018+743638 03 10 18.29 +74 36 38.16 9.03 NVSS
7 NVSS J030828+743219 03 08 28.99 +74 32 18.96 10.41 NVSS
WN 0302.9+7420 03 08 26.50 +74 32 13.92 10.49 WENSS
8 NVSS J030552+744545 03 05 52.99 +74 45 46.08 11.23 NVSS
TGSSADR J030551.2+744555 03 05 51.31 +74 45 56.16 11.38 GMRTAS150M
TGSSADR J030903.1+743123 03 09 03.19 +74 31 23.88 11.44 GMRTAS150M
9 NVSS J030745+743144 03 07 45.10 +74 31 45.12 11.50 NVSS
10 NVSS J030903+743116 03 09 03.70 +74 31 17.04 11.57 NVSS
11 NVSS J030614+743420 03 06 14.50 +74 34 19.92 12.62 NVSS
12 NVSS J031122+743248 03 11 22.39 +74 32 48.84 14.76 NVSS
13 NVSS J030607+743043 03 06 07.30 +74 30 43.92 15.57 NVSS

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