QW Boo - JD 2458228.43629

QW Boo (Eclipsing binary)

RA: 15h 36m 34.58s, DE: +46° 38' 09.30" (234.1440833333, 46.6359166663)

4/19/2018, 22:28 - 4/20/2018, 03:01 (UTC)

Data:

Observer: Martin Lehky
Created: 5/11/2018, 12:44
Station: Hradec Králové, CZ (MPC 048)
Instrument: 0.40-m f/5 + CCD G2-1600 + BVRcIc
Photometric band: V
Time standard: Gjd
Brightness in: Mag

Note:

# NAME QW Boo
# VAR 15:36:34.56 +46:38:09.3 2451391.919 0.290871 12.1-12.45R1 EW (VSX 20180410)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT VRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 19/20 IV 2018; V_74_90s (64/38); Rc_74_60s (65/38); Ic_74_60s (67/40); 4.5h; maximum and minimum P
# NOTE FLT V 2458228.55537 +/- 0.00011; 20180420 01:19:44 (UT) GEO
# NOTE FLT Rc 2458228.55504 +/- 0.00009; 20180420 01:19:15 (UT) GEO
# NOTE FLT Ic 2458228.55534 +/- 0.00012; 20180420 01:19:41 (UT) GEO
# NOTE FLT VRcIc average 2458228.55525 +/- 0.00012; 20180420 01:19:34 (UT) GEO
# COND clear weather => somewhat cloudy (cirrus)

# VAR USNO-B1.0 1366-0263058 UCAC4 684-055280  15:36:34.557 +46:38:09.25  J = 10.774 K = 10.197 J-K = 0.577
# CMP USNO-B1.0 1365-0254794 UCAC4 683-058140  15:36:12.192 +46:35:11.65  J = 09.950 K = 09.577 J-K = 0.373
# CH1 USNO-B1.0 1365-0255006 UCAC4 683-058152  15:37:13.767 +46:35:49.27  J = 11.288 K = 10.548 J-K = 0.740
# CH2 USNO-B1.0 1366-0262889 UCAC4 684-055266  15:35:41.647 +46:37:25.12  J = 11.638 K = 11.143 J-K = 0.495

Determined minima

P: 2458228.55536 (4/20/2018, 01:19)
HJD_min: 2458228.55803
Heliocentric correction: 0.00267
Note:

# NAME QW Boo
# VAR 15:36:34.56 +46:38:09.3 2451391.919 0.290871 12.1-12.45R1 EW (VSX 20180410)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT VRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 19/20 IV 2018; V_74_90s (64/38); Rc_74_60s (65/38); Ic_74_60s (67/40); 4.5h; maximum and minimum P
# NOTE FLT V 2458228.55537 +/- 0.00011; 20180420 01:19:44 (UT) GEO
# NOTE FLT Rc 2458228.55504 +/- 0.00009; 20180420 01:19:15 (UT) GEO
# NOTE FLT Ic 2458228.55534 +/- 0.00012; 20180420 01:19:41 (UT) GEO
# NOTE FLT VRcIc average 2458228.55525 +/- 0.00012; 20180420 01:19:34 (UT) GEO
# COND clear weather => somewhat cloudy (cirrus)

# VAR USNO-B1.0 1366-0263058 UCAC4 684-055280  15:36:34.557 +46:38:09.25  J = 10.774 K = 10.197 J-K = 0.577
# CMP USNO-B1.0 1365-0254794 UCAC4 683-058140  15:36:12.192 +46:35:11.65  J = 09.950 K = 09.577 J-K = 0.373
# CH1 USNO-B1.0 1365-0255006 UCAC4 683-058152  15:37:13.767 +46:35:49.27  J = 11.288 K = 10.548 J-K = 0.740
# CH2 USNO-B1.0 1366-0262889 UCAC4 684-055266  15:35:41.647 +46:37:25.12  J = 11.638 K = 11.143 J-K = 0.495

----- EBFit result: -----
Tmin = 2458228.55536
Error (1 sigma): +0.00021/-0.00019 (Bootstrapping), +0.00013/-0.00014 (Prayer bead), +0.00011/-0.00011 (LSM)
Error (95% CI):  +0.00041/-0.00038 (Bootstrapping), +0.00030/-0.00023 (Prayer bead)
LSM: chi^2 = 112.9, n_freedom = 34

P: 2458228.55502 (4/20/2018, 01:19)
HJD_min: 2458228.55769
Heliocentric correction: 0.00267
Note:

# NAME QW Boo
# VAR 15:36:34.56 +46:38:09.3 2451391.919 0.290871 12.1-12.45R1 EW (VSX 20180410)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT VRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 19/20 IV 2018; V_74_90s (64/38); Rc_74_60s (65/38); Ic_74_60s (67/40); 4.5h; maximum and minimum P
# NOTE FLT V 2458228.55537 +/- 0.00011; 20180420 01:19:44 (UT) GEO
# NOTE FLT Rc 2458228.55504 +/- 0.00009; 20180420 01:19:15 (UT) GEO
# NOTE FLT Ic 2458228.55534 +/- 0.00012; 20180420 01:19:41 (UT) GEO
# NOTE FLT VRcIc average 2458228.55525 +/- 0.00012; 20180420 01:19:34 (UT) GEO
# COND clear weather => somewhat cloudy (cirrus)

# VAR USNO-B1.0 1366-0263058 UCAC4 684-055280  15:36:34.557 +46:38:09.25  J = 10.774 K = 10.197 J-K = 0.577
# CMP USNO-B1.0 1365-0254794 UCAC4 683-058140  15:36:12.192 +46:35:11.65  J = 09.950 K = 09.577 J-K = 0.373
# CH1 USNO-B1.0 1365-0255006 UCAC4 683-058152  15:37:13.767 +46:35:49.27  J = 11.288 K = 10.548 J-K = 0.740
# CH2 USNO-B1.0 1366-0262889 UCAC4 684-055266  15:35:41.647 +46:37:25.12  J = 11.638 K = 11.143 J-K = 0.495

----- EBFit result: -----
Tmin = 2458228.55502
Error (1 sigma): +0.00019/-0.00018 (Bootstrapping), +0.00011/-0.00010 (Prayer bead), +0.00009/-0.00009 (LSM)
Error (95% CI):  +0.00039/-0.00033 (Bootstrapping), +0.00013/-0.00016 (Prayer bead)
LSM: chi^2 = 122.8, n_freedom = 37

P: 2458228.55533 (4/20/2018, 01:19)
HJD_min: 2458228.55800
Heliocentric correction: 0.00267
Note:

# NAME QW Boo
# VAR 15:36:34.56 +46:38:09.3 2451391.919 0.290871 12.1-12.45R1 EW (VSX 20180410)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT VRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 19/20 IV 2018; V_74_90s (64/38); Rc_74_60s (65/38); Ic_74_60s (67/40); 4.5h; maximum and minimum P
# NOTE FLT V 2458228.55537 +/- 0.00011; 20180420 01:19:44 (UT) GEO
# NOTE FLT Rc 2458228.55504 +/- 0.00009; 20180420 01:19:15 (UT) GEO
# NOTE FLT Ic 2458228.55534 +/- 0.00012; 20180420 01:19:41 (UT) GEO
# NOTE FLT VRcIc average 2458228.55525 +/- 0.00012; 20180420 01:19:34 (UT) GEO
# COND clear weather => somewhat cloudy (cirrus)

# VAR USNO-B1.0 1366-0263058 UCAC4 684-055280  15:36:34.557 +46:38:09.25  J = 10.774 K = 10.197 J-K = 0.577
# CMP USNO-B1.0 1365-0254794 UCAC4 683-058140  15:36:12.192 +46:35:11.65  J = 09.950 K = 09.577 J-K = 0.373
# CH1 USNO-B1.0 1365-0255006 UCAC4 683-058152  15:37:13.767 +46:35:49.27  J = 11.288 K = 10.548 J-K = 0.740
# CH2 USNO-B1.0 1366-0262889 UCAC4 684-055266  15:35:41.647 +46:37:25.12  J = 11.638 K = 11.143 J-K = 0.495

----- EBFit result: -----
Tmin = 2458228.55533
Error (1 sigma): +0.00018/-0.00017 (Bootstrapping), +0.00009/-0.00010 (Prayer bead), +0.00013/-0.00013 (LSM)
Error (95% CI):  +0.00038/-0.00032 (Bootstrapping), +0.00014/-0.00018 (Prayer bead)
LSM: chi^2 = 68.8, n_freedom = 35

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