EF Dra

RA: 18h 05m 30.40s, DE: +69° 45' 16.00" (271.3766666617, 69.7544444444)

7/2/2013, 10:22 PM - 7/3/2013, 12:03 AM (UTC)

Data:

Observer: Martin Lehky
Created: 10/19/2013 10:52:13 AM
Station: Hradec Králové, CZ (MPC 048)
Instrument: 0.40-m f/5 + CCD G2-1600 + BVRI
Photometric band: B
Time standard: Gjd
Brightness in: Mag

Note:

# NAME EF Dra
# VAR 18:05:30.44 +69:45:15.7 2452500.3075 0.4240310 10.48-10.82V EW/KW (VSX 20110324)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 02/03 VII 2013; B_28_90s (25/11); V_28_60s (26/12); R_28_30s (25/11); I_28_30s (27/14); 1.6h; minimum P
# NOTE FLT B 2456476.46877 +/- 0.00050; 20130702 23:15:02 (UT) GEO
# NOTE FLT V 2456476.46905 +/- 0.00024; 20130702 23:15:26 (UT) GEO
# NOTE FLT R 2456476.46886 +/- 0.00048; 20130702 23:15:10 (UT) GEO
# NOTE FLT I 2456476.46889 +/- 0.00030; 20130702 23:15:12 (UT) GEO
# NOTE FLT BVRI average 2456476.46889 +/- 0.00050; 20130702 23:15:12 (UT) GEO
# COND somewhat cloudy

Determined minima

P: 2456476.46877 (7/2/2013, 23:15)
HJD_min: 2456476.46846
Heliocentric correction: -0.00031
Note:

# NAME EF Dra
# VAR 18:05:30.44 +69:45:15.7 2452500.3075 0.4240310 10.48-10.82V EW/KW (VSX 20110324)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 02/03 VII 2013; B_28_90s (25/11); V_28_60s (26/12); R_28_30s (25/11); I_28_30s (27/14); 1.6h; minimum P
# NOTE FLT B 2456476.46877 +/- 0.00050; 20130702 23:15:02 (UT) GEO
# NOTE FLT V 2456476.46905 +/- 0.00024; 20130702 23:15:26 (UT) GEO
# NOTE FLT R 2456476.46886 +/- 0.00048; 20130702 23:15:10 (UT) GEO
# NOTE FLT I 2456476.46889 +/- 0.00030; 20130702 23:15:12 (UT) GEO
# NOTE FLT BVRI average 2456476.46889 +/- 0.00050; 20130702 23:15:12 (UT) GEO
# COND somewhat cloudy

----- EBFit result: -----
Tmin = 2456476.46877
Error (1 sigma): +0.00045/-0.00056 (Bootstrapping), +0.00051/-0.00048 (Prayer bead), +0.00033/-0.00033 (LSM)
Error (95% CI):  +0.00113/-0.00107 (Bootstrapping), +0.00083/-0.00080 (Prayer bead)
LSM: chi^2 = 35.6, n_freedom = 20

P: 2456476.46905 (7/2/2013, 23:15)
HJD_min: 2456476.46874
Heliocentric correction: -0.00031
Note:

# NAME EF Dra
# VAR 18:05:30.44 +69:45:15.7 2452500.3075 0.4240310 10.48-10.82V EW/KW (VSX 20110324)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 02/03 VII 2013; B_28_90s (25/11); V_28_60s (26/12); R_28_30s (25/11); I_28_30s (27/14); 1.6h; minimum P
# NOTE FLT B 2456476.46877 +/- 0.00050; 20130702 23:15:02 (UT) GEO
# NOTE FLT V 2456476.46905 +/- 0.00024; 20130702 23:15:26 (UT) GEO
# NOTE FLT R 2456476.46886 +/- 0.00048; 20130702 23:15:10 (UT) GEO
# NOTE FLT I 2456476.46889 +/- 0.00030; 20130702 23:15:12 (UT) GEO
# NOTE FLT BVRI average 2456476.46889 +/- 0.00050; 20130702 23:15:12 (UT) GEO
# COND somewhat cloudy

----- EBFit result: -----
Tmin = 2456476.46905
Error (1 sigma): +0.00025/-0.00038 (Bootstrapping), +0.00044/-0.00038 (Prayer bead), +0.00026/-0.00026 (LSM)
Error (95% CI):  +0.00049/-0.00097 (Bootstrapping), +0.00064/-0.00054 (Prayer bead)
LSM: chi^2 = 25.2, n_freedom = 21

P: 2456476.47000 (7/2/2013, 23:16)
HJD_min: 2456476.47028
Heliocentric correction: 0.00028
Note:

# NAME EF Dra
# VAR 18:05:30.44 +69:45:15.7 2452500.3075 0.4240310 10.48-10.82V EW/KW (VSX 20110324)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 02/03 VII 2013; B_28_90s (25/11); V_28_60s (26/12); R_28_30s (25/11); I_28_30s (27/14); 1.6h; minimum P
# NOTE FLT B 2456476.46877 +/- 0.00050; 20130702 23:15:02 (UT) GEO
# NOTE FLT V 2456476.46905 +/- 0.00024; 20130702 23:15:26 (UT) GEO
# NOTE FLT R 2456476.46886 +/- 0.00048; 20130702 23:15:10 (UT) GEO
# NOTE FLT I 2456476.46889 +/- 0.00030; 20130702 23:15:12 (UT) GEO
# NOTE FLT BVRI average 2456476.46889 +/- 0.00050; 20130702 23:15:12 (UT) GEO
# COND somewhat cloudy

----- EBFit result: -----
Tmin = 2456476.47000
Error (1 sigma): +0.00064/-0.00093 (Bootstrapping), +0.00101/-0.00099 (Prayer bead), +0.00023/-0.00023 (LSM)
Error (95% CI):  +0.00142/-0.00210 (Bootstrapping), +0.00119/-0.00353 (Prayer bead)
LSM: chi^2 = 148.7, n_freedom = 20

P: 2456476.46889 (7/2/2013, 23:15)
HJD_min: 2456476.46858
Heliocentric correction: -0.00031
Note:

# NAME EF Dra
# VAR 18:05:30.44 +69:45:15.7 2452500.3075 0.4240310 10.48-10.82V EW/KW (VSX 20110324)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 02/03 VII 2013; B_28_90s (25/11); V_28_60s (26/12); R_28_30s (25/11); I_28_30s (27/14); 1.6h; minimum P
# NOTE FLT B 2456476.46877 +/- 0.00050; 20130702 23:15:02 (UT) GEO
# NOTE FLT V 2456476.46905 +/- 0.00024; 20130702 23:15:26 (UT) GEO
# NOTE FLT R 2456476.46886 +/- 0.00048; 20130702 23:15:10 (UT) GEO
# NOTE FLT I 2456476.46889 +/- 0.00030; 20130702 23:15:12 (UT) GEO
# NOTE FLT BVRI average 2456476.46889 +/- 0.00050; 20130702 23:15:12 (UT) GEO
# COND somewhat cloudy

----- EBFit result: -----
Tmin = 2456476.46889
Error (1 sigma): +0.00029/-0.00074 (Bootstrapping), +0.00114/-0.00116 (Prayer bead), +0.00030/-0.00030 (LSM)
Error (95% CI):  +0.00063/-0.00181 (Bootstrapping), +0.00161/-0.00172 (Prayer bead)
LSM: chi^2 = 59.5, n_freedom = 22

Actions:

. . .

Light curve

Catalog geometry

R_p: N/A +/- N/A R_Jup	R_*: N/A +/- N/A R_Sun
i: N/A +/- N/A °	A: N/A +/- N/A AU

Measured geometry

R_p: N/A _-N/A ^+N/A R_Jup
i: N/A _-N/A\|N/A ^+N/A\|N/A °

Neighborhood of the object, comparison and check stars

Comments