Mrk_421

Last GRT Data

B: 2012-05-20T01:33:02
V: 2012-05-20T01:31:54
R: 2012-05-20T01:31:54
I: 2012-05-20T01:29:34

Basic data of Mrk_421 (SIMBAD link)

Fermi LAT, Swift BAT/XRT, GRT light curve

LAT light curve is from Fermi LAT Monitored Source List Light Curves
BAT light curve is from Swift/BAT Hard X-ray Transient Monitor
XRT light curve is from Swift-XRT Monitoring of Fermi-LAT Sources of Interest

GRT four color (B, V, R, and I) light curves

GRT B filter with reference stars

B filter

V filter

R filter

I filter