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 Mon Nov 23 16:59:20 EET 2020

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 323
S2 0109+22 Find Mag Jy 323
RGB 0136+391 Find Mag Jy 321
RGB 0214+517 Find Mag Jy 327
B2 0218+35 Find Mag Jy 2
3C 66A Find Mag Jy 323
1ES 0229+200 Find Mag Jy 326
NGC 1275 Find Mag Jy 327
HB89 0317+185 Find Mag Jy 323
1ES 0414+009 Find Mag Jy 321
1ES 0502+675 Find Mag Jy 370
TXS 0506+056 Find Mag Jy 331
VER 0521+211 Find Mag Jy 341
VER 0648+151 Find Mag Jy 341
1ES 0647+250 Find Mag Jy 341
RGB 0710+591 Find Mag Jy 330
S5 0716+714 Find Mag Jy 322
NVSS J073326+515355 Find Mag Jy 322
1ES 0806+524 Find Mag Jy 322
RGB 0847+115 Find Mag Jy 321
OJ 287 Find Mag Jy 209
S4 0954+65 Find Mag Jy 321
1ES 1011+496 Find Mag Jy 321
Mkn 421 Find Mag Jy 321
Mkn 180 Find Mag Jy 321
RGB 1136+676 Find Mag Jy 321
4C 29.45 Find Mag Jy 324
ON 325 Find Mag Jy 322
1ES 1218+304 Find Mag Jy 322
ON 231 Find Mag Jy 325
MS 1221.8+2452 Find Mag Jy 325
ON 238 Find Mag Jy 323
ON 246 Find Mag Jy 324
3C 279 Find Mag Jy 322
PG 1424+240 Find Mag Jy 323
1ES 1426+428 Find Mag Jy 322
1ES 1440+122 Find Mag Jy 451
PKS 1441+25 Find Mag Jy 87
PKS 1510-089 Find Mag Jy 322
AP Lib Find Mag Jy 440
TXS 1515-273 Find Mag Jy 458
PG 1553+113 Find Mag Jy 219
Mkn 501 Find Mag Jy 404
H 1722+119 Find Mag Jy 404
OT 546 Find Mag Jy 398
1ES 1741+196 Find Mag Jy 391
HB89 1749+096 Find Mag Jy 386
1ES 1959+650 Find Mag Jy 350
MG4 J200112+4352 Find Mag Jy 361
1ES 2037+521 Find Mag Jy 342
PKS 2155-304 Find Mag Jy 341
BL Lac Find Mag Jy 323
B3 2247+381 Find Mag Jy 324
1ES 2344+514 Find Mag Jy 324

Other blazars and AGN

Name Finding chart Lightcurve Obs epochs
(last 100 days)
Days since
last observation
1ES 0120+340 Find Mag Jy 325
MS 0158.5+0019 Find Mag Jy 12
B2 0234+28 Find Mag Jy 2
AO 0235+164 Find Mag Jy 13
1ES 0323+022 Find Mag Jy 325
4C 39.12 Find Mag Jy 326
3C 120 Find Mag Jy 332
PKS 0735+178 Find Mag Jy 328
B2 0806+35 Find Mag Jy 328
OJ 248 Find Mag Jy 328
0836+710 Find Mag Jy 322
RGB 1012+424 Find Mag Jy 328
1ES 1028+511 Find Mag Jy 326
RGB 1053+494 Find Mag Jy 328
RGB 1117+202 Find Mag Jy 322
3C 273 Find Mag Jy 328
PKS 1406-076 Find Mag Jy 470
RGB 1417+257 Find Mag Jy 461
1ES 1544+820 Find Mag Jy 427
B2 1633+38 Find Mag Jy 412
RGB 1719+177 Find Mag Jy 397
HB89 1721+343 Find Mag Jy 398
RGB 2042+244 Find Mag Jy 340
RGB J2232+117 Find Mag Jy 324
PKS 2247-131 Find Mag Jy 10
3C 454.3 Find Mag Jy 327

FERMI bright targets (password protected)

Background picture credit : Rami Rekola 2001