EF Dra

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

3/1/2015, 12:34 AM - 3/1/2015, 4:45 AM (UTC)

Data:

Observer: Martin Lehky
Created: 5/16/2015 12:05:47 PM
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 BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.5 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 28 II / 01 III 2015; B_68_90s (63/41); V_68_60s (67/44); Rc_68_30s (63/41); Ic_68_30s (64/39); 4.1h; minimum S
# NOTE FLT B 2457082.63671 +/- 0.00023; 20150301 03:16:52 (UT) GEO
# NOTE FLT V 2457082.63701 +/- 0.00019; 20150301 03:17:18 (UT) GEO
# NOTE FLT Rc 2457082.63692 +/- 0.00023; 20150301 03:17:10 (UT) GEO
# NOTE FLT Ic 2457082.63767 +/- 0.00026; 20150301 03:18:15 (UT) GEO
# NOTE FLT BVRI average 2457082.63707 +/- 0.00026; 20150301 03:17:23 (UT) GEO
# COND clear weather

Determined minima

S: 2457082.63695 (3/1/2015, 03:17)
HJD_min: 2457082.63702
Heliocentric correction: 0.00007
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 BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.5 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 28 II / 01 III 2015; B_68_90s (63/41); V_68_60s (67/44); Rc_68_30s (63/41); Ic_68_30s (64/39); 4.1h; minimum S
# NOTE FLT B 2457082.63671 +/- 0.00023; 20150301 03:16:52 (UT) GEO
# NOTE FLT V 2457082.63701 +/- 0.00019; 20150301 03:17:18 (UT) GEO
# NOTE FLT Rc 2457082.63692 +/- 0.00023; 20150301 03:17:10 (UT) GEO
# NOTE FLT Ic 2457082.63767 +/- 0.00026; 20150301 03:18:15 (UT) GEO
# NOTE FLT BVRI average 2457082.63707 +/- 0.00026; 20150301 03:17:23 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2457082.63695
Error (1 sigma): +0.00048/-0.00053 (Bootstrapping), +0.00049/-0.00042 (Prayer bead), +0.00022/-0.00022 (LSM)
Error (95% CI):  +0.00106/-0.00091 (Bootstrapping), +0.00105/-0.00057 (Prayer bead)
LSM: chi^2 = 190.5, n_freedom = 37

S: 2457082.63705 (3/1/2015, 03:17)
HJD_min: 2457082.63712
Heliocentric correction: 0.00007
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 BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.5 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 28 II / 01 III 2015; B_68_90s (63/41); V_68_60s (67/44); Rc_68_30s (63/41); Ic_68_30s (64/39); 4.1h; minimum S
# NOTE FLT B 2457082.63671 +/- 0.00023; 20150301 03:16:52 (UT) GEO
# NOTE FLT V 2457082.63701 +/- 0.00019; 20150301 03:17:18 (UT) GEO
# NOTE FLT Rc 2457082.63692 +/- 0.00023; 20150301 03:17:10 (UT) GEO
# NOTE FLT Ic 2457082.63767 +/- 0.00026; 20150301 03:18:15 (UT) GEO
# NOTE FLT BVRI average 2457082.63707 +/- 0.00026; 20150301 03:17:23 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2457082.63705
Error (1 sigma): +0.00039/-0.00039 (Bootstrapping), +0.00051/-0.00045 (Prayer bead), +0.00019/-0.00019 (LSM)
Error (95% CI):  +0.00092/-0.00076 (Bootstrapping), +0.00068/-0.00064 (Prayer bead)
LSM: chi^2 = 159.7, n_freedom = 43

S: 2457082.63696 (3/1/2015, 03:17)
HJD_min: 2457082.63703
Heliocentric correction: 0.00007
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 BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.5 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 28 II / 01 III 2015; B_68_90s (63/41); V_68_60s (67/44); Rc_68_30s (63/41); Ic_68_30s (64/39); 4.1h; minimum S
# NOTE FLT B 2457082.63671 +/- 0.00023; 20150301 03:16:52 (UT) GEO
# NOTE FLT V 2457082.63701 +/- 0.00019; 20150301 03:17:18 (UT) GEO
# NOTE FLT Rc 2457082.63692 +/- 0.00023; 20150301 03:17:10 (UT) GEO
# NOTE FLT Ic 2457082.63767 +/- 0.00026; 20150301 03:18:15 (UT) GEO
# NOTE FLT BVRI average 2457082.63707 +/- 0.00026; 20150301 03:17:23 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2457082.63696
Error (1 sigma): +0.00048/-0.00052 (Bootstrapping), +0.00053/-0.00049 (Prayer bead), +0.00023/-0.00023 (LSM)
Error (95% CI):  +0.00101/-0.00101 (Bootstrapping), +0.00069/-0.00072 (Prayer bead)
LSM: chi^2 = 154.6, n_freedom = 40

S: 2457082.63772 (3/1/2015, 03:18)
HJD_min: 2457082.63779
Heliocentric correction: 0.00007
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 BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.5 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 28 II / 01 III 2015; B_68_90s (63/41); V_68_60s (67/44); Rc_68_30s (63/41); Ic_68_30s (64/39); 4.1h; minimum S
# NOTE FLT B 2457082.63671 +/- 0.00023; 20150301 03:16:52 (UT) GEO
# NOTE FLT V 2457082.63701 +/- 0.00019; 20150301 03:17:18 (UT) GEO
# NOTE FLT Rc 2457082.63692 +/- 0.00023; 20150301 03:17:10 (UT) GEO
# NOTE FLT Ic 2457082.63767 +/- 0.00026; 20150301 03:18:15 (UT) GEO
# NOTE FLT BVRI average 2457082.63707 +/- 0.00026; 20150301 03:17:23 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2457082.63772
Error (1 sigma): +0.00031/-0.00032 (Bootstrapping), +0.00012/-0.00017 (Prayer bead), +0.00025/-0.00025 (LSM)
Error (95% CI):  +0.00065/-0.00062 (Bootstrapping), +0.00018/-0.00024 (Prayer bead)
LSM: chi^2 = 74.8, n_freedom = 49

Actions:

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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