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 Apr 12 12:50:37 EEST 2021

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 29
S2 0109+22 Find Mag Jy 154
RGB 0136+391 Find Mag Jy 153
RGB 0214+517 Find Mag Jy 153
B2 0218+35 Find Mag Jy 28
3C 66A Find Mag Jy 28
1ES 0229+200 Find Mag Jy 466
NGC 1275 Find Mag Jy 13
HB89 0317+185 Find Mag Jy 463
1ES 0414+009 Find Mag Jy 461
1ES 0502+675 Find Mag Jy 510
TXS 0506+056 Find Mag Jy 13
VER 0521+211 Find Mag Jy 28
VER 0648+151 Find Mag Jy 481
1ES 0647+250 Find Mag Jy 12
RGB 0710+591 Find Mag Jy 470
S5 0716+714 Find Mag Jy 0
NVSS J073326+515355 Find Mag Jy 462
1ES 0806+524 Find Mag Jy 462
RGB 0847+115 Find Mag Jy 461
OJ 287 Find Mag Jy 4
S4 0954+65 Find Mag Jy 461
1ES 1011+496 Find Mag Jy 461
Mkn 421 Find Mag Jy 6
Mkn 180 Find Mag Jy 461
RGB 1136+676 Find Mag Jy 461
4C 29.45 Find Mag Jy 10
ON 325 Find Mag Jy 462
1ES 1218+304 Find Mag Jy 462
ON 231 Find Mag Jy 465
MS 1221.8+2452 Find Mag Jy 465
ON 238 Find Mag Jy 463
ON 246 Find Mag Jy 464
3C 279 Find Mag Jy 1
PG 1424+240 Find Mag Jy 8
1ES 1426+428 Find Mag Jy 462
1ES 1440+122 Find Mag Jy 591
PKS 1441+25 Find Mag Jy 0
PKS 1510-089 Find Mag Jy 3
AP Lib Find Mag Jy 580
TXS 1515-273 Find Mag Jy 598
PG 1553+113 Find Mag Jy 4
Mkn 501 Find Mag Jy 544
H 1722+119 Find Mag Jy 544
OT 546 Find Mag Jy 538
1ES 1741+196 Find Mag Jy 531
HB89 1749+096 Find Mag Jy 526
1ES 1959+650 Find Mag Jy 490
MG4 J200112+4352 Find Mag Jy 501
1ES 2037+521 Find Mag Jy 482
PKS 2155-304 Find Mag Jy 481
BL Lac Find Mag Jy 463
B3 2247+381 Find Mag Jy 464
1ES 2344+514 Find Mag Jy 154

Other blazars and AGN

Name Finding chart Lightcurve Obs epochs
(last 100 days)
Days since
last observation
1ES 0120+340 Find Mag Jy 465
MS 0158.5+0019 Find Mag Jy 152
B2 0234+28 Find Mag Jy 30
AO 0235+164 Find Mag Jy 125
1ES 0323+022 Find Mag Jy 465
4C 39.12 Find Mag Jy 466
3C 120 Find Mag Jy 472
PKS 0735+178 Find Mag Jy 468
B2 0806+35 Find Mag Jy 468
OJ 248 Find Mag Jy 468
0836+710 Find Mag Jy 462
RGB 1012+424 Find Mag Jy 468
1ES 1028+511 Find Mag Jy 466
RGB 1053+494 Find Mag Jy 468
RGB 1117+202 Find Mag Jy 462
3C 273 Find Mag Jy 468
PKS 1406-076 Find Mag Jy 4
RGB 1417+257 Find Mag Jy 601
1ES 1544+820 Find Mag Jy 12
B2 1633+38 Find Mag Jy 552
RGB 1719+177 Find Mag Jy 537
HB89 1721+343 Find Mag Jy 538
RGB 2042+244 Find Mag Jy 480
RGB J2232+117 Find Mag Jy 464
PKS 2247-131 Find Mag Jy 150
3C 454.3 Find Mag Jy 467

FERMI bright targets (password protected)

Background picture credit : Rami Rekola 2001