GV Leo (Eclipsing binary)

RA: 10h 11m 59.23s, DE: +16° 52' 29.50" (152.9967916617, 16.8748611104)

4/20/2018, 19:12 - 4/20/2018, 21:47 (UTC)

Data:
  • Observer: Martin Lehky
  • Created: 5/11/2018, 12:53
  • 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 GV Leo
# VAR 10:11:59.17 +16:52:30.1 2452754.4602 0.266727 11.45-11.96V EW (VSX 20180410)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 20/21 IV 2018; B_43_90s (41/12); V_43_60s (38/9); Rc_43_30s (41/11); Ic_43_30s (41/12); 2.7h; minimum P
# NOTE FLT B 2458229.33222 +/- 0.00012; 20180420 19:58:24 (UT) GEO
# NOTE FLT V 2458229.33217 +/- 0.00009; 20180420 19:58:19 (UT) GEO
# NOTE FLT Rc 2458229.33162 +/- 0.00009; 20180420 19:57:32 (UT) GEO
# NOTE FLT Ic 2458229.33236 +/- 0.00013; 20180420 19:58:36 (UT) GEO
# NOTE FLT BVRcIc average 2458229.33209 +/- 0.00013; 20180420 19:58:13 (UT) GEO
# COND clear weather
Determined minima
  • P: 2458229.33225 (4/20/2018, 19:58)
    HJDmin: 2458229.33496 +/- 0.00020  
    Heliocentric correction: 0.00271
    Note: 
    # NAME GV Leo
# VAR 10:11:59.17 +16:52:30.1 2452754.4602 0.266727 11.45-11.96V EW (VSX 20180410)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 20/21 IV 2018; B_43_90s (41/12); V_43_60s (38/9); Rc_43_30s (41/11); Ic_43_30s (41/12); 2.7h; minimum P
# NOTE FLT B 2458229.33222 +/- 0.00012; 20180420 19:58:24 (UT) GEO
# NOTE FLT V 2458229.33217 +/- 0.00009; 20180420 19:58:19 (UT) GEO
# NOTE FLT Rc 2458229.33162 +/- 0.00009; 20180420 19:57:32 (UT) GEO
# NOTE FLT Ic 2458229.33236 +/- 0.00013; 20180420 19:58:36 (UT) GEO
# NOTE FLT BVRcIc average 2458229.33209 +/- 0.00013; 20180420 19:58:13 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458229.33225
Error (1 sigma): +0.00022/-0.00019 (Bootstrapping), +0.00008/-0.00007 (Prayer bead), +0.00012/-0.00012 (LSM)
Error (95% CI):  +0.00043/-0.00042 (Bootstrapping), +0.00017/-0.00018 (Prayer bead)
LSM: chi^2 = 84.4, n_freedom = 24
  • P: 2458229.33221 (4/20/2018, 19:58)
    HJDmin: 2458229.33492 +/- 0.00018  
    Heliocentric correction: 0.00271
    Note: 
    # NAME GV Leo
# VAR 10:11:59.17 +16:52:30.1 2452754.4602 0.266727 11.45-11.96V EW (VSX 20180410)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 20/21 IV 2018; B_43_90s (41/12); V_43_60s (38/9); Rc_43_30s (41/11); Ic_43_30s (41/12); 2.7h; minimum P
# NOTE FLT B 2458229.33222 +/- 0.00012; 20180420 19:58:24 (UT) GEO
# NOTE FLT V 2458229.33217 +/- 0.00009; 20180420 19:58:19 (UT) GEO
# NOTE FLT Rc 2458229.33162 +/- 0.00009; 20180420 19:57:32 (UT) GEO
# NOTE FLT Ic 2458229.33236 +/- 0.00013; 20180420 19:58:36 (UT) GEO
# NOTE FLT BVRcIc average 2458229.33209 +/- 0.00013; 20180420 19:58:13 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458229.33221
Error (1 sigma): +0.00018/-0.00018 (Bootstrapping), +0.00010/-0.00012 (Prayer bead), +0.00009/-0.00009 (LSM)
Error (95% CI):  +0.00043/-0.00041 (Bootstrapping), +0.00015/-0.00015 (Prayer bead)
LSM: chi^2 = 139.6, n_freedom = 22
  • P: 2458229.33166 (4/20/2018, 19:57)
    HJDmin: 2458229.33437 +/- 0.00020  
    Heliocentric correction: 0.00271
    Note: 
    # NAME GV Leo
# VAR 10:11:59.17 +16:52:30.1 2452754.4602 0.266727 11.45-11.96V EW (VSX 20180410)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 20/21 IV 2018; B_43_90s (41/12); V_43_60s (38/9); Rc_43_30s (41/11); Ic_43_30s (41/12); 2.7h; minimum P
# NOTE FLT B 2458229.33222 +/- 0.00012; 20180420 19:58:24 (UT) GEO
# NOTE FLT V 2458229.33217 +/- 0.00009; 20180420 19:58:19 (UT) GEO
# NOTE FLT Rc 2458229.33162 +/- 0.00009; 20180420 19:57:32 (UT) GEO
# NOTE FLT Ic 2458229.33236 +/- 0.00013; 20180420 19:58:36 (UT) GEO
# NOTE FLT BVRcIc average 2458229.33209 +/- 0.00013; 20180420 19:58:13 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458229.33166
Error (1 sigma): +0.00018/-0.00021 (Bootstrapping), +0.00010/-0.00010 (Prayer bead), +0.00009/-0.00009 (LSM)
Error (95% CI):  +0.00046/-0.00041 (Bootstrapping), +0.00015/-0.00015 (Prayer bead)
LSM: chi^2 = 159.7, n_freedom = 25
  • P: 2458229.33237 (4/20/2018, 19:58)
    HJDmin: 2458229.33508 +/- 0.00022  
    Heliocentric correction: 0.00271
    Note: 
    # NAME GV Leo
# VAR 10:11:59.17 +16:52:30.1 2452754.4602 0.266727 11.45-11.96V EW (VSX 20180410)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 20/21 IV 2018; B_43_90s (41/12); V_43_60s (38/9); Rc_43_30s (41/11); Ic_43_30s (41/12); 2.7h; minimum P
# NOTE FLT B 2458229.33222 +/- 0.00012; 20180420 19:58:24 (UT) GEO
# NOTE FLT V 2458229.33217 +/- 0.00009; 20180420 19:58:19 (UT) GEO
# NOTE FLT Rc 2458229.33162 +/- 0.00009; 20180420 19:57:32 (UT) GEO
# NOTE FLT Ic 2458229.33236 +/- 0.00013; 20180420 19:58:36 (UT) GEO
# NOTE FLT BVRcIc average 2458229.33209 +/- 0.00013; 20180420 19:58:13 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458229.33237
Error (1 sigma): +0.00022/-0.00021 (Bootstrapping), +0.00006/-0.00005 (Prayer bead), +0.00013/-0.00013 (LSM)
Error (95% CI):  +0.00048/-0.00042 (Bootstrapping), +0.00015/-0.00010 (Prayer bead)
LSM: chi^2 = 77.1, n_freedom = 24
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - GV Leo, JD 2458229.30041
Comments