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 Oct 23 11:06:27 EEST 2019

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 15
S2 0109+22 Find Mag Jy 15
RGB 0136+391 Find Mag Jy 15
RGB 0214+517 Find Mag Jy 1
B2 0218+35 Find Mag Jy 1
3C 66A Find Mag Jy 1
1ES 0229+200 Find Mag Jy 1
NGC 1275 Find Mag Jy 0
HB89 0317+185 Find Mag Jy 1
1ES 0414+009 Find Mag Jy 1
1ES 0502+675 Find Mag Jy 1
TXS 0506+056 Find Mag Jy 1
VER 0521+211 Find Mag Jy 1
VER 0648+151 Find Mag Jy 1
1ES 0647+250 Find Mag Jy 0
RGB 0710+591 Find Mag Jy 0
S5 0716+714 Find Mag Jy 0
NVSS J073326+515355 Find Mag Jy 0
1ES 0806+524 Find Mag Jy 0
RGB 0847+115 Find Mag Jy 156
OJ 287 Find Mag Jy 150
S4 0954+65 Find Mag Jy 136
1ES 1011+496 Find Mag Jy 136
Mkn 421 Find Mag Jy 133
Mkn 180 Find Mag Jy 122
RGB 1136+676 Find Mag Jy 115
4C 29.45 Find Mag Jy 115
ON 325 Find Mag Jy 117
1ES 1218+304 Find Mag Jy 111
ON 231 Find Mag Jy 106
MS 1221.8+2452 Find Mag Jy 106
ON 238 Find Mag Jy 101
ON 246 Find Mag Jy 101
3C 279 Find Mag Jy 87
PG 1424+240 Find Mag Jy 64
1ES 1426+428 Find Mag Jy 64
1ES 1440+122 Find Mag Jy 54
PKS 1441+25 Find Mag Jy 62
PKS 1510-089 Find Mag Jy 43
AP Lib Find Mag Jy 43
TXS 1515-273 Find Mag Jy 61
PG 1553+113 Find Mag Jy 27
Mkn 501 Find Mag Jy 7
H 1722+119 Find Mag Jy 7
OT 546 Find Mag Jy 1
1ES 1741+196 Find Mag Jy 1
HB89 1749+096 Find Mag Jy 7
1ES 1959+650 Find Mag Jy 1
MG4 J200112+4352 Find Mag Jy 1
1ES 2037+521 Find Mag Jy 1
PKS 2155-304 Find Mag Jy 5
BL Lac Find Mag Jy 1
B3 2247+381 Find Mag Jy 1
1ES 2344+514 Find Mag Jy 1

Other blazars and AGN

Name Finding chart Lightcurve Obs epochs
(last 100 days)
Days since
last observation
1ES 0120+340 Find Mag Jy 14
MS 0158.5+0019 Find Mag Jy 14
B2 0234+28 Find Mag Jy 0
AO 0235+164 Find Mag Jy 252
1ES 0323+022 Find Mag Jy 0
3C 120 Find Mag Jy 0
PKS 0735+178 Find Mag Jy 16
B2 0806+35 Find Mag Jy 170
OJ 248 Find Mag Jy 155
0836+710 Find Mag Jy 151
RGB 1012+424 Find Mag Jy 141
1ES 1028+511 Find Mag Jy 139
RGB 1053+494 Find Mag Jy 141
RGB 1117+202 Find Mag Jy 119
3C 273 Find Mag Jy 113
PKS 1406-076 Find Mag Jy 73
RGB 1417+257 Find Mag Jy 64
1ES 1544+820 Find Mag Jy 30
B2 1633+38 Find Mag Jy 15
RGB 1719+177 Find Mag Jy 23
HB89 1721+343 Find Mag Jy 1
RGB 2042+244 Find Mag Jy 5
RGB J2232+117 Find Mag Jy 23
PKS 2247-131 Find Mag Jy 5
3C 454.3 Find Mag Jy 24

FERMI bright targets (password protected)

Background picture credit : Rami Rekola 2001