Tuorla Observatory blazar monitoring

Optical light curves


Main characteristics


Data policy

The lightcurves shown on these pages are intended as a quick-look service for our monitoring group and for the MAGIC consortium. They are made public here to aid multiwavelength campaigns, which sometimes require quick response times. If you want to use some of the data for a publication, please do not extract the data from the images. Contact us and ask for the possibility of getting the data you need.

Data reduction procedure and intrepretation for ten (2002-2012) years of R-band monitoring data for 31 northern sky blazars are available at K. Nilsson et al. (2018, A&A, 620, 185). The main properties of the targets and observing log are available at: Strasbourg astronomical Data Center (CDS-Vizier)


Manuals and useful links

KVA Operation Manual (password protected)
KVA Maintenance Manual (password protected)
Coordinated observations (password protected)
Sunset and sunrise time
KVA twilights (La Palma local time)
NOT weather page
GTC Sky camera
Summary of weather information in ORM
Location of telescopes at ORM


Light curves

Updated Wed 20 Oct 2021 01:40:10 PM EEST

FERMI bright targets (password protected)

TeV blazars and AGNs

Name Finding chart Lightcurve Obs epochs
(last 100 days)
Days since
last observation
1ES 0033+595 Find Mag Jy 12
S2 0109+22 Find Mag Jy 12
RGB 0136+391 Find Mag Jy 12
RGB 0214+517 Find Mag Jy 12
B2 0218+35 Find Mag Jy 12
3C 66A Find Mag Jy 12
1ES 0229+200 Find Mag Jy 11
NGC 1275 Find Mag Jy 12
HB89 0317+185 Find Mag Jy 13
1ES 0414+009 Find Mag Jy 13
1ES 0502+675 Find Mag Jy 12
TXS 0506+056 Find Mag Jy 12
VER 0521+211 Find Mag Jy 13
VER 0648+151 Find Mag Jy 13
1ES 0647+250 Find Mag Jy 11
RGB 0710+591 Find Mag Jy 13
S5 0716+714 Find Mag Jy 11
NVSS J073326+515355 Find Mag Jy 13
1ES 0806+524 Find Mag Jy 11
RGB 0847+115 Find Mag Jy 11
OJ 287 Find Mag Jy 11
S4 0954+65 Find Mag Jy 11
1ES 1011+496 Find Mag Jy 11
Mkn 421 Find Mag Jy 11
Mkn 180 Find Mag Jy 12
RGB 1136+676 Find Mag Jy 11
4C 29.45 Find Mag Jy 105
ON 325 Find Mag Jy 100
1ES 1218+304 Find Mag Jy 96
ON 231 Find Mag Jy 99
MS 1221.8+2452 Find Mag Jy 111
ON 238 Find Mag Jy 108
ON 246 Find Mag Jy 98
3C 279 Find Mag Jy 162
B2 1420+32 Find Mag Jy 35
PG 1424+240 Find Mag Jy 90
1ES 1426+428 Find Mag Jy 27
1ES 1440+122 Find Mag Jy 100
PKS 1441+25 Find Mag Jy 103
PKS 1510-089 Find Mag Jy 111
AP Lib Find Mag Jy 771
TXS 1515-273 Find Mag Jy 789
PG 1553+113 Find Mag Jy 38
Mkn 501 Find Mag Jy 24
H 1722+119 Find Mag Jy 12
OT 546 Find Mag Jy 12
1ES 1741+196 Find Mag Jy 24
HB89 1749+096 Find Mag Jy 16
1ES 1959+650 Find Mag Jy 13
MG4 J200112+4352 Find Mag Jy 12
1ES 2037+521 Find Mag Jy 12
PKS 2155-304 Find Mag Jy 672
BL Lac Find Mag Jy 11
B3 2247+381 Find Mag Jy 11
1ES 2344+514 Find Mag Jy 13

Other blazars and AGN

Name Finding chart Lightcurve Obs epochs
(last 100 days)
Days since
last observation
1ES 0120+340 Find Mag Jy 656
MS 0158.5+0019 Find Mag Jy 36
B2 0234+28 Find Mag Jy 28
AO 0235+164 Find Mag Jy 29
1ES 0323+022 Find Mag Jy 656
4C 39.12 Find Mag Jy 657
3C 120 Find Mag Jy 663
PKS 0735+178 Find Mag Jy 659
B2 0806+35 Find Mag Jy 659
OJ 248 Find Mag Jy 659
0836+710 Find Mag Jy 653
RGB 1012+424 Find Mag Jy 659
1ES 1028+511 Find Mag Jy 657
RGB 1053+494 Find Mag Jy 659
RGB 1117+202 Find Mag Jy 653
3C 273 Find Mag Jy 659
PKS 1406-076 Find Mag Jy 131
RGB 1417+257 Find Mag Jy 792
1ES 1544+820 Find Mag Jy 15
B2 1633+38 Find Mag Jy 743
RGB 1719+177 Find Mag Jy 728
HB89 1721+343 Find Mag Jy 729
RGB 2042+244 Find Mag Jy 671
RGB J2232+117 Find Mag Jy 12
PKS 2247-131 Find Mag Jy 37
3C 454.3 Find Mag Jy 14

FERMI bright targets (password protected)

Background picture credit : Rami Rekola 2001