EF Dra

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

7/3/2018, 8:40 PM - 7/3/2018, 11:57 PM (UTC)

Data:

Observer: Martin Lehky
Created: 8/5/2018 1:50:22 PM
Station: Hradec Králové, CZ (MPC 048)
Instrument: 0.40-m f/5 + CCD G2-1600 + BVRcIc
Photometric band: B
Time standard: Gjd
Brightness in: Mag

Note:

# NAME EF Dra
# VAR 18:05:30.41 +69:45:15.5 2452500.3075 0.4240310 10.38-10.71V EW/KW (VSX 20180527)
# 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 03/04 VII 2018; B_53_90s (50/32); V_53_60s (51/33); Rc_53_30s (51/33); Ic_53_30s (52/34); 3.3h; minimum S
# NOTE FLT B 2458303.45184 +/- 0.00014; 20180703 22:50:39 (UT) GEO
# NOTE FLT V 2458303.45165 +/- 0.00011; 20180703 22:50:23 (UT) GEO
# NOTE FLT Rc 2458303.45177 +/- 0.00012; 20180703 22:50:33 (UT) GEO
# NOTE FLT Ic 2458303.45100 +/- 0.00027; 20180703 22:49:26 (UT) GEO
# NOTE FLT BVRcIc average 2458303.45157 +/- 0.00027; 20180703 22:50:16 (UT) GEO
# COND fine clear weather

Determined minima

S: 2458303.45184 (7/3/2018, 22:50)
HJD_min: 2458303.45153
Heliocentric correction: -0.00031
Note:

# NAME EF Dra
# VAR 18:05:30.41 +69:45:15.5 2452500.3075 0.4240310 10.38-10.71V EW/KW (VSX 20180527)
# 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 03/04 VII 2018; B_53_90s (50/32); V_53_60s (51/33); Rc_53_30s (51/33); Ic_53_30s (52/34); 3.3h; minimum S
# NOTE FLT B 2458303.45184 +/- 0.00014; 20180703 22:50:39 (UT) GEO
# NOTE FLT V 2458303.45165 +/- 0.00011; 20180703 22:50:23 (UT) GEO
# NOTE FLT Rc 2458303.45177 +/- 0.00012; 20180703 22:50:33 (UT) GEO
# NOTE FLT Ic 2458303.45100 +/- 0.00027; 20180703 22:49:26 (UT) GEO
# NOTE FLT BVRcIc average 2458303.45157 +/- 0.00027; 20180703 22:50:16 (UT) GEO
# COND fine clear weather

----- EBFit result: -----
Tmin = 2458303.45184
Error (1 sigma): +0.00015/-0.00012 (Bootstrapping), +0.00022/-0.00026 (Prayer bead), +0.00014/-0.00014 (LSM)
Error (95% CI):  +0.00031/-0.00025 (Bootstrapping), +0.00030/-0.00048 (Prayer bead)
LSM: chi^2 = 64.7, n_freedom = 32

S: 2458303.45161 (7/3/2018, 22:50)
HJD_min: 2458303.45130
Heliocentric correction: -0.00031
Note:

# NAME EF Dra
# VAR 18:05:30.41 +69:45:15.5 2452500.3075 0.4240310 10.38-10.71V EW/KW (VSX 20180527)
# 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 03/04 VII 2018; B_53_90s (50/32); V_53_60s (51/33); Rc_53_30s (51/33); Ic_53_30s (52/34); 3.3h; minimum S
# NOTE FLT B 2458303.45184 +/- 0.00014; 20180703 22:50:39 (UT) GEO
# NOTE FLT V 2458303.45165 +/- 0.00011; 20180703 22:50:23 (UT) GEO
# NOTE FLT Rc 2458303.45177 +/- 0.00012; 20180703 22:50:33 (UT) GEO
# NOTE FLT Ic 2458303.45100 +/- 0.00027; 20180703 22:49:26 (UT) GEO
# NOTE FLT BVRcIc average 2458303.45157 +/- 0.00027; 20180703 22:50:16 (UT) GEO
# COND fine clear weather

----- EBFit result: -----
Tmin = 2458303.45161
Error (1 sigma): +0.00025/-0.00017 (Bootstrapping), +0.00021/-0.00031 (Prayer bead), +0.00011/-0.00011 (LSM)
Error (95% CI):  +0.00046/-0.00038 (Bootstrapping), +0.00035/-0.00060 (Prayer bead)
LSM: chi^2 = 166.9, n_freedom = 34

S: 2458303.45177 (7/3/2018, 22:50)
HJD_min: 2458303.45146
Heliocentric correction: -0.00031
Note:

# NAME EF Dra
# VAR 18:05:30.41 +69:45:15.5 2452500.3075 0.4240310 10.38-10.71V EW/KW (VSX 20180527)
# 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 03/04 VII 2018; B_53_90s (50/32); V_53_60s (51/33); Rc_53_30s (51/33); Ic_53_30s (52/34); 3.3h; minimum S
# NOTE FLT B 2458303.45184 +/- 0.00014; 20180703 22:50:39 (UT) GEO
# NOTE FLT V 2458303.45165 +/- 0.00011; 20180703 22:50:23 (UT) GEO
# NOTE FLT Rc 2458303.45177 +/- 0.00012; 20180703 22:50:33 (UT) GEO
# NOTE FLT Ic 2458303.45100 +/- 0.00027; 20180703 22:49:26 (UT) GEO
# NOTE FLT BVRcIc average 2458303.45157 +/- 0.00027; 20180703 22:50:16 (UT) GEO
# COND fine clear weather

----- EBFit result: -----
Tmin = 2458303.45177
Error (1 sigma): +0.00018/-0.00017 (Bootstrapping), +0.00036/-0.00041 (Prayer bead), +0.00012/-0.00012 (LSM)
Error (95% CI):  +0.00037/-0.00037 (Bootstrapping), +0.00043/-0.00077 (Prayer bead)
LSM: chi^2 = 171.8, n_freedom = 34

S: 2458303.45069 (7/3/2018, 22:48)
HJD_min: 2458303.45038
Heliocentric correction: -0.00031
Note:

# NAME EF Dra
# VAR 18:05:30.41 +69:45:15.5 2452500.3075 0.4240310 10.38-10.71V EW/KW (VSX 20180527)
# 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 03/04 VII 2018; B_53_90s (50/32); V_53_60s (51/33); Rc_53_30s (51/33); Ic_53_30s (52/34); 3.3h; minimum S
# NOTE FLT B 2458303.45184 +/- 0.00014; 20180703 22:50:39 (UT) GEO
# NOTE FLT V 2458303.45165 +/- 0.00011; 20180703 22:50:23 (UT) GEO
# NOTE FLT Rc 2458303.45177 +/- 0.00012; 20180703 22:50:33 (UT) GEO
# NOTE FLT Ic 2458303.45100 +/- 0.00027; 20180703 22:49:26 (UT) GEO
# NOTE FLT BVRcIc average 2458303.45157 +/- 0.00027; 20180703 22:50:16 (UT) GEO
# COND fine clear weather

----- EBFit result: -----
Tmin = 2458303.45069
Error (1 sigma): +0.00020/-0.00021 (Bootstrapping), +0.00005/-0.00005 (Prayer bead), +0.00014/-0.00014 (LSM)
Error (95% CI):  +0.00042/-0.00042 (Bootstrapping), +0.00012/-0.00013 (Prayer bead)
LSM: chi^2 = 66.0, n_freedom = 33

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