Fermi LAT weekly report N. 208

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Covered period: 2012.May.28 - 2012.Jun.03
LAT Mission week: 208.57 - 209.57

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• A solar flare was detected by LAT on Jun 3 with a daily flux level of (5.0+/- 0.6) X 10^-6. Goes detected a M3.3 class flare around 18:00 UTC in agreement with the third six-hour time interval of the day.
• S5 0716+71 was detected on May 28 and then every day from May 31 through Jun 3 with daily flux in the range (0.4-0.7) +/- 0.1 X 10^-6.
• Mrk 421 was detected on May 28 and then every day from May 31 through Jun 3 with daily flux in the range (0.2-0.3) +/- 0.1 X 10^-6).
• CTA 102 was detected on May 28 and Jun 1 with a daily flux of 0.8 +/- 0.2 X 10^-6 on both days. Increased optical activity in this source was observed this week by the ATOM telescope (ATel #4141).
• B3 1343+451 was detected from May 31 through Jun 2 brightening from 0.3 to 0.8 X 10^-6).
• PMN J2345-1555 was detected on May 29, and then Jun 1 through Jun 3 with with daily flux in the range (0.3-0.7) +/- 0.1 X 10^-6).
• PKS 2233-148 was detected on May 29, Jun 2 and Jun 3 brightening from 0.4 to 0.9 X 10^-6).
• Sporadic daily detections of blazars (flux below 1 X 10^-6 ) NGC 1275, PKS 2255-282.

Fluxes are in the unit of photons/cm²/s above 100 MeV. All errors are statistical only.

Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.

For questions and comments please contact:
- R. Ojha (roopesh.ojha[at]gmail.com) for generic information related to this week
- Contact persons on this page for individual sources cited above.

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Fermi LAT weekly report N. 207

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Covered period: 2012.May.21 - 2012.May.27
LAT Mission week: 206.57 - 207.57

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• CTA 102 continues to be detected most of the week reaching a daily flux of 1.5x10^-6 on May 22nd.
• S5 0716+71 is detected most of the week with a flux below 1x10^-6
• Mkn 421 is detected most of the week with a flux below 1x10^-6.
• PKS 1830-211 is detected on the second half of the week with a flux below 1x10^-6.
• SBS 0846+513 is detected on May 24th with a daily flux of 0.5x10^-6.
• BL Lacertae, PKS 0537-441, B2 1520+31, AO 0235+164, PKS 2326-502, OJ 287, PKS 2155-304, PKS B1310–041, Ton 599, PKS 2142-75, B3 1343+451, PKS 2233–148 and PKS 0341-256 are sporadic detected in just one day of the week with a flux below 1x10^-6.

Fluxes are in the unit of photons/cm²/s above 100 MeV. All errors are statistical only.
Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.

For questions and comments please contact:
- D. Gasparrini (dario.gasparrini[at]asdc.asi.it) for generic information related to this week - Contact persons on this page for individual sources cited above.

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Fermi LAT weekly report N. 206

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Covered period: 2012 May 14-20
LAT Mission week: 206.57 - 207.57

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• PKS 1830-211 and PMN J1038-5311 are both in high state being detected most days of the week, showing also a daily flux level above 10^-6 photons cm^-2 s^-1 at least in a couple of days. The daily peak flux observed is about 1.9X10^-6 on May 18 for PKS 1830-211, and about 1.5X10^-6  on May 15 and 18 for PMN J1038-5311.
• Other blazars detected in high state in one day of the week are PKS 1510-089 reaching the daily flux level of 10^-6 on May 14,  OJ 248 (S3 0827+24) flaring at about 10^-6 on May 17, and OJ 287 flaring at about  10^-6 on May 18.
• CTA 102, S5 0716+71, PKS 2326-502,  PMN J2345-1555, and PKS 0454-234 are detected most days of the week.
• Sporadic detections of blazars with daily flux level below 10^-6: BL Lac, PMN J2250-2806, 4C +21.35  PKS 2255-282, PKS 2233-148, PG 1218+304.
• Sporadic detections of blazars with daily flux level below 0.5x10^-6:  B2 1520+31, PKS 0341-256, 3C 66A, PKS 2233-148,  SBS 0846+513 (a narrow line Sy1 galaxy), Mkn 421,  PKS 2123-463,  TXS 1616+517, PKS 2155-304, PKS 0341-256, GB6 J0850+4855, B3 1343+451.

Fluxes are in the unit of photons/cm^2/s above 100 MeV. All uncertainties are statistical only.

Note. All the flux reported above are by the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification. - Please acknowledge the LAT team if you use information from this report.
For questions and comments please contact: - S. Ciprini (stefano.ciprini[at]asdc.asi.it) for generic information related to this week - Contact persons on this page for individual sources cited above.

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Fermi LAT Weekly Report N. 205

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Covered period: 2012.May.07 - 2012.May.13
LAT Mission week: 205.57 - 206.57

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• BL Lacertae is quite active during the week reaching a daily flux of 0.9x10 ^-6 on May 11th.
• CTA 102 continues to be detected most of the week reaching the the daily flux of 0.9x10^-6 on May 7th.
• S5 0716+71 is detected most of the week with a flux below 1x10^-6.
• PKS 2326-502 is detected most of the week reaching a flux of 0.9x10^-6.
• NGC 1275 is detected two time during the week reaching a flux of 0.7x10^-6 on May 13th.
• PKS B1339-206, PKS 0426-380, S5 1803+78, PKS 1244-255, PKS 0537-441, B2 1520+31, Mrk 421 and PMN J2250-2806 are sporadic detected in just one day of the week with a flux below 1x10^-6.

Fluxes are in the unit of photons/cm²/s above 100 MeV. All errors are statistical only.
Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.

For questions and comments please contact:
- S. Cutini (sara.cutini[at]asdc.asi.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.

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Fermi LAT Weekly Report N. 204

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Covered period: 2012.Apr.30 - 2012.May.06
LAT Mission week: 204.57 - 205.57

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• OG 050 reached a record daily flux level of 1.4±0.4) X 10^-6 on Apr 30, which is 16 times its average 2FGL flux. This source is known to the community as an earlier Astronomer’s Telegram (ATel#3750) reported a flare in November 2011 when it had a daily flux of 1.1 X 10^-6 (and a 6-hour flux of 2 X 10^-6). It was only detected one other day during this week: on May 5 with a daily flux of (0.7±0.3) X 10^-6.
• An unassociated source at a daily flux level of (0.9±0.2) X 10^-6 was detected well off the Galactic plane on May 1. A plausible counterpart was found in the QSO PKS 1346-112. This possible association has been known to the community through an Astronomer’s Telegram (ATel#3788) issued on 29 Nov 2011 when the daily flux was 1.2±0.2) X 10^-6.
• An unassociated source ASPJ122102m070351 was detected (TS=27) well off the Galactic plane on May 3, at a daily flux of (0.8±0.2) X 10^-6 which is 44 times its flux in the 2FGL catalog (1FGL J1221.4-0635, 2FGL J1221.4-0633).
• S5 0716+71 was detected every day from April 30 through May 4 with flux in the range (0.3-0.6)±0.1 X 10^-6.
• PKS 2326-502 was detected from May 4 through May 6 brightening from 0.3 to 0.8 X 10^-6.
• Sporadic daily detections of blazars (fluxes below 1 X 10^-6): 3C 273, PKS 1424-418, BL Lacertae, PKS 1244-255, Ton 599, B2 1520+31.

Fluxes are in the unit of photons/cm²/s above 100 MeV. All errors are statistical only.
Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.

For questions and comments please contact:
- R. Ojha (Roopesh.Ojha[at]gmail.com) for generic information related to this week
- Contact persons on this page for individual sources cited above.

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Fermi LAT Weekly Report N. 203

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Covered period: 2012.Apr.23 - 2012.Apr.29

LAT Mission week: 203.57 - 204.57

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• PKS 1510-08 was detected throughout the week with daily fluxes ranging from (1.0-2.1) X 10^-6, reaching the peak value on Apr. 24.


• CTA 102 was detected three times with daily fluxes ranging from (0.5±0.2) X 10^-6 to a peak value of (1.0±0.3) X 10^-6 reached on Apr. 24.


• PKS 0454-234 was detected twice with daily fluxes of (1.2±0.4) and (1.3±0.4) X 10^-6 on Apr. 23 and Apr. 24, respectively.


• Sporadic activity (fluxes below 1 X 10^-6): S5 0716+71, PKS B1424-418, PKS 2233-148, PKS 1124-186, PKS 2326-502, B2 1520+31, 1ES 2322-409, B3 1343+451, Mkn 421.

Fluxes are in the unit of photons/cm²/s above 100 MeV. All errors are statistical only.

Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- T. Venters (toni.venters[at]gmail.com) for generic information related to this week

- Contact persons on this page for individual sources cited above.

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Fermi LAT weekly report N.202

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Covered period: 2012.Apr.16 - 2012.Apr.22

LAT Mission week: 202.57 - 203.57

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• S5 0716+71 and PKS 0454-234 detected through the week with daily flux in the range 0.3-0.5 X 10^-6 and 0.9-1.4 X 10^-6, respectively.



• Sporadic activity (fluxes above 1.0 X 10^-6) observed from 1510-089 (1.2 on Apr. 21) and CTA 102 (1.0 on Apr. 22).



• Sporadic activity (fluxes below 1.0 X 10^-6) observed from 1510-089 (0.7 on Apr. 21), PKS 2155-304 (0.2 on Apr. 16 and 20), Mkn 421 (0.2 and 0.3 on Apr. 17 and 21), B2 1520+31 (0.8 on Apr. 17), OJ 287 (0.5 on Apr. 19), B3 1343+451 (0.5 on Apr. 19), 4C +21.35 (0.4 on Apr. 19), PKS B1339-206 (0.8 on Apr. 21), PKS B1424-418 (0.4 on Apr. 21), PKS 2326-502 (0.5 on Apr. 22).

Fluxes are in the units of photons/cm²/s above 100 MeV. All errors are statistical only.

Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- D. Donato (donato[at]milkyway.gsfc.nasa.gov) for generic information related to this week

- Contact persons on this page for individual sources cited above.

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