Fermi Science Support Center

Monitored Source List Light Curves

The LAT team monitors flux values for a number of bright sources and transient sources that have shown flares during the mission. (See up-to-date weekly reports on flaring sources at the Fermi-LAT Flare Advocate Blog.) As sources cross the monitoring flux threshold of 1x10-6 cm-2s-1, they are added to the monitored source list. (The initial flux threshold was 2x10-6 cm-2s-1, but this value was lowered in June 2009.) In addition to the light curves below, the flux values in several bands are available via Browse. This list will continue to grow as the mission progresses.

PLEASE NOTE: The tabulated fluxes are derived at the LAT Instrument Science Operations center in an automated analysis to produce results quickly to facilitate follow-up multiwavelength observations of flaring sources. The table of released fluxes will be updated as analysis and calibrations improve.

These early flux estimates do not include systematic uncertainties and do not have an absolute flux calibration. Use of these data as absolute flux measurements for constraining models or for comparison to other data is strongly discouraged at this time. In addition to overall normalization uncertainties, source fluxes may have variations of up to 10% due to currently-uncorrected dependencies of the gamma-ray detection efficiency on variations of the particle background in orbit. Please note that these results are produced using preliminary instrument response functions and calibrations. The quality and stability of these results will improve when updated calibrations become available over the coming months.

Note: Due to a software error, flux upper limits are not available for dates between approximately 2010-09-14 to 2011-02-21.

A detailed description of the data included in these files can be found here.

Source Daily LC Weekly LC
TXS 2358+209
(RA = 0.385000, Dec = 21.2270)
PMN J0017-0512
(RA = 4.39900, Dec = -5.21200)
4C +01.02
(RA = 17.1620, Dec = 1.58300)
4C 31.03
(RA = 18.2100, Dec = 32.1380)
PKS 0130-17
(RA = 23.1810, Dec = -16.9130)
0208-512
(RA = 32.6930, Dec = -51.0170)
CGRaBS J0211+1051
(RA = 32.8050, Dec = 10.8600)
S3 0218+35
(RA = 35.2730, Dec = 35.9370)
3C 66A
(RA = 35.6650, Dec = 43.0350)
PKS 0235-618
(RA = 39.2220, Dec = -61.6040)
4C +28.07
(RA = 39.4680, Dec = 28.8020)
0235+164
(RA = 39.6620, Dec = 16.6160)
LSI +61 303
(RA = 40.1310, Dec = 61.2290)
PKS 0244-470
(RA = 41.5000, Dec = -46.8550)
PKS 0250-225
(RA = 43.2000, Dec = -22.3240)
PKS 0301-243
(RA = 45.8600, Dec = -24.1200)
NGC 1275
(RA = 49.9510, Dec = 41.5120)
1H 0323+342
(RA = 51.1720, Dec = 34.1790)
PKS 0336-01
(RA = 54.8790, Dec = -1.77700)
4C +50.11
(RA = 59.8740, Dec = 50.9640)
PKS 0402-362
(RA = 60.9740, Dec = -36.0840)
PKS 0426-380
(RA = 67.1680, Dec = -37.9390)
3C 120
(RA = 68.2960, Dec = 5.35400)
NRAO 190
(RA = 70.6610, Dec = -0.295000)
PKS 0454-234
(RA = 74.2630, Dec = -23.4140)
PKS 0458-02
(RA = 75.3030, Dec = -1.98700)
PKS 0502+049
(RA = 76.3470, Dec = 4.99500)
PKS 0507+17
(RA = 77.5100, Dec = 18.0120)
PKS 0514-459
(RA = 78.9390, Dec = -45.9450)
VER 0521+211
(RA = 80.4420, Dec = 21.2140)
PKS 0521-36
(RA = 80.7420, Dec = -36.4590)
PKS 0528+134
(RA = 82.7350, Dec = 13.5320)
CRATES J0531-4827
(RA = 82.9940, Dec = -48.4600)
OG 050
(RA = 83.1620, Dec = 7.54500)
Crab Pulsar
(RA = 83.6330, Dec = 22.0140)
PKS 0537-441
(RA = 84.7100, Dec = -44.0860)
B2 0619+33
(RA = 95.7180, Dec = 33.4360)
MG2 J071354+1934
(RA = 108.482, Dec = 19.5830)
PKS 0716+714
(RA = 110.430, Dec = 71.3500)
4C 14.23
(RA = 111.320, Dec = 14.4200)
PKS 0727-11
(RA = 112.580, Dec = -11.6870)
PKS 0736+01
(RA = 114.825, Dec = 1.61800)
BZU J0742+5444
(RA = 115.666, Dec = 54.7400)
PKS 0805-07
(RA = 122.065, Dec = -7.85300)
0827+243
(RA = 127.490, Dec = 24.2200)
S5 0836+71
(RA = 130.352, Dec = 70.8950)
OJ 287
(RA = 133.704, Dec = 20.1090)
3EG J0903-3531
(RA = 136.202, Dec = -35.2560)
PKS 0903-57
(RA = 136.222, Dec = -57.5850)
PKS B0906+015
(RA = 137.292, Dec = 1.36000)
0FGL J0910.2-5044
(RA = 137.568, Dec = -50.7430)
PKS 0920-39
(RA = 140.693, Dec = -39.9930)
PMN J0948+0022
(RA = 147.239, Dec = 0.374000)
S4 0954+65
(RA = 149.697, Dec = 65.5650)
S4 1030+61
(RA = 158.464, Dec = 60.8520)
PMN J1038-5311
(RA = 159.669, Dec = -53.1950)
S5 1044+71
(RA = 162.115, Dec = 71.7270)
J1057-6027
(RA = 164.308, Dec = -60.4580)
4C +01.28
(RA = 164.623, Dec = 1.56600)
Mrk 421
(RA = 166.114, Dec = 38.2090)
PMN J1123-6417
(RA = 170.828, Dec = -64.2970)
B2 1144+40
(RA = 176.743, Dec = 39.9760)
1150+497
(RA = 178.352, Dec = 49.5190)
Ton 599
(RA = 179.883, Dec = 29.2460)
W Comae
(RA = 185.382, Dec = 28.2330)
PKS B1222+216
(RA = 186.227, Dec = 21.3800)
3C 273
(RA = 187.278, Dec = 2.05200)
ON 246
(RA = 187.559, Dec = 25.3020)
J123939+044409
(RA = 189.900, Dec = 4.70000)
PKS 1244-255
(RA = 191.695, Dec = -25.7970)
3C 279
(RA = 194.047, Dec = -5.78900)
OP 313
(RA = 197.619, Dec = 32.3450)
GB6 B1310+4844
(RA = 198.181, Dec = 48.4750)
PKS 1313-333
(RA = 199.033, Dec = -33.6500)
PKS 1329-049
(RA = 203.019, Dec = -5.16200)
B3 1343+451
(RA = 206.388, Dec = 44.8830)
PKS 1346-112
(RA = 207.381, Dec = -11.5480)
1406-076
(RA = 212.235, Dec = -7.87400)
PKS 1424-41
(RA = 216.985, Dec = -42.1050)
H 1426+428
(RA = 217.136, Dec = 42.6720)
PKS 1451-375
(RA = 223.614, Dec = -37.7930)
PKS 1454-354
(RA = 224.361, Dec = -35.6530)
PKS 1502+106
(RA = 226.104, Dec = 10.4940)
B2 1504+37
(RA = 226.540, Dec = 37.5140)
J1512-3221
(RA = 228.040, Dec = -32.3600)
1510-089
(RA = 228.170, Dec = -8.83000)
AP Lib
(RA = 229.424, Dec = -24.3720)
B2 1520+31
(RA = 230.542, Dec = 31.7370)
TXS 1530-131
(RA = 233.160, Dec = -13.3500)
PG 1553+113
(RA = 238.929, Dec = 11.1900)
PKS 1622-253
(RA = 246.445, Dec = -25.4610)
PKS B 1622-297
(RA = 246.525, Dec = -29.8570)
PMN J1626-2426
(RA = 246.750, Dec = -24.4450)
1633+382
(RA = 248.815, Dec = 38.1350)
0FGL J1641.4+3939
(RA = 250.355, Dec = 39.6660)
Mrk 501
(RA = 253.468, Dec = 39.7600)
GB6 J1700+6830
(RA = 255.039, Dec = 68.5020)
B3 1708+433
(RA = 257.421, Dec = 43.3120)
Fermi J1717-5156
(RA = 259.394, Dec = -51.9250)
1730-130
(RA = 263.261, Dec = -13.0800)
S4 1749+70
(RA = 267.137, Dec = 70.0970)
S5 1803+78
(RA = 270.190, Dec = 78.4680)
S4 1800+44
(RA = 270.385, Dec = 44.0730)
PKS 1824-582
(RA = 277.302, Dec = -58.2320)
PKS 1830-211
(RA = 278.416, Dec = -21.0610)
CGRaBS J1848+3219
(RA = 282.092, Dec = 32.3170)
B2 1846+32B
(RA = 282.143, Dec = 32.7330)
CGRaBS J1849+6705
(RA = 282.317, Dec = 67.0950)
PKS B1908-201
(RA = 287.790, Dec = -20.1150)
PMN J1913-3630
(RA = 288.337, Dec = -36.5050)
TXS 1923+123
(RA = 291.420, Dec = 12.4610)
PKS 1954-388
(RA = 299.499, Dec = -38.7520)
1ES 1959+650
(RA = 300.000, Dec = 65.1490)
S5 2007+77
(RA = 301.379, Dec = 77.8790)
Fermi J2007-2518
(RA = 302.371, Dec = -25.4110)
PKS 2023-07
(RA = 306.419, Dec = -7.59800)
PKS 2032+107
(RA = 308.843, Dec = 10.9350)
PKS 2123-463
(RA = 321.628, Dec = -46.0970)
PKS 2136-642
(RA = 325.003, Dec = -64.0260)
OX 169
(RA = 325.898, Dec = 17.7300)
PKS 2142-75
(RA = 326.803, Dec = -75.6040)
PKS 2149-306
(RA = 327.981, Dec = -30.4650)
PKS 2155-304
(RA = 329.717, Dec = -30.2260)
NRAO 676
(RA = 330.431, Dec = 50.8160)
PKS 2155-83
(RA = 330.583, Dec = -83.6370)
BL Lac
(RA = 330.680, Dec = 42.2780)
3C 446
(RA = 336.447, Dec = -4.95000)
CTA 102
(RA = 338.152, Dec = 11.7310)
PKS 2233-148
(RA = 339.142, Dec = -14.5560)
TXS 2241+406
(RA = 341.053, Dec = 40.9540)
PMN J2250-2806
(RA = 342.685, Dec = -28.1100)
3C 454.3
(RA = 343.491, Dec = 16.1480)
PKS 2255-282
(RA = 344.525, Dec = -27.9730)
PKS B2258-022
(RA = 345.283, Dec = -1.96800)
B2 2308+34
(RA = 347.772, Dec = 34.4200)
PKS 2320-035
(RA = 350.883, Dec = -3.28500)
1ES 2322-409
(RA = 351.186, Dec = -40.6800)
PKS 2326-502
(RA = 352.337, Dec = -49.9280)
PMN J2345-1555
(RA = 356.302, Dec = -15.9190)
1ES 2344+514
(RA = 356.770, Dec = 51.7050)

Data last modified: 24 May 2016