GV Leo (Eclipsing binary)

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

4/8/2018, 21:35 - 4/9/2018, 00:04 (UTC)

Data:
  • Observer: Martin Lehky
  • Created: 5/11/2018, 10:08
  • 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 08/09 IV 2018; B_42_90s (37/24); V_42_60s (40/23); Rc_42_30s (42/25); Ic_42_30s (41/24); 2.5h; minimum S
# NOTE FLT B 2458217.46282 +/- 0.00017; 20180408 23:06:28 (UT) GEO
# NOTE FLT V 2458217.46229 +/- 0.00011; 20180408 23:05:42 (UT) GEO
# NOTE FLT Rc 2458217.46184 +/- 0.00012; 20180408 23:05:03 (UT) GEO
# NOTE FLT Ic 2458217.46234 +/- 0.00015; 20180408 23:05:46 (UT) GEO
# NOTE FLT BVRcIc average 2458217.46232 +/- 0.00017; 20180408 23:05:44 (UT) GEO
# COND clear weather
Determined minima
  • S: 2458217.46283 (4/8/2018, 23:06)
    HJDmin: 2458217.46650 +/- 0.00028  
    Heliocentric correction: 0.00367
    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 08/09 IV 2018; B_42_90s (37/24); V_42_60s (40/23); Rc_42_30s (42/25); Ic_42_30s (41/24); 2.5h; minimum S
# NOTE FLT B 2458217.46282 +/- 0.00017; 20180408 23:06:28 (UT) GEO
# NOTE FLT V 2458217.46229 +/- 0.00011; 20180408 23:05:42 (UT) GEO
# NOTE FLT Rc 2458217.46184 +/- 0.00012; 20180408 23:05:03 (UT) GEO
# NOTE FLT Ic 2458217.46234 +/- 0.00015; 20180408 23:05:46 (UT) GEO
# NOTE FLT BVRcIc average 2458217.46232 +/- 0.00017; 20180408 23:05:44 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458217.46283
Error (1 sigma): +0.00029/-0.00028 (Bootstrapping), +0.00008/-0.00010 (Prayer bead), +0.00017/-0.00017 (LSM)
Error (95% CI):  +0.00059/-0.00055 (Bootstrapping), +0.00011/-0.00014 (Prayer bead)
LSM: chi^2 = 63.0, n_freedom = 24
  • S: 2458217.46229 (4/8/2018, 23:05)
    HJDmin: 2458217.46596 +/- 0.00016  
    Heliocentric correction: 0.00367
    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 08/09 IV 2018; B_42_90s (37/24); V_42_60s (40/23); Rc_42_30s (42/25); Ic_42_30s (41/24); 2.5h; minimum S
# NOTE FLT B 2458217.46282 +/- 0.00017; 20180408 23:06:28 (UT) GEO
# NOTE FLT V 2458217.46229 +/- 0.00011; 20180408 23:05:42 (UT) GEO
# NOTE FLT Rc 2458217.46184 +/- 0.00012; 20180408 23:05:03 (UT) GEO
# NOTE FLT Ic 2458217.46234 +/- 0.00015; 20180408 23:05:46 (UT) GEO
# NOTE FLT BVRcIc average 2458217.46232 +/- 0.00017; 20180408 23:05:44 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458217.46229
Error (1 sigma): +0.00016/-0.00017 (Bootstrapping), +0.00004/-0.00005 (Prayer bead), +0.00011/-0.00011 (LSM)
Error (95% CI):  +0.00035/-0.00036 (Bootstrapping), +0.00009/-0.00008 (Prayer bead)
LSM: chi^2 = 58.5, n_freedom = 28
  • S: 2458217.46184 (4/8/2018, 23:05)
    HJDmin: 2458217.46551 +/- 0.00025  
    Heliocentric correction: 0.00367
    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 08/09 IV 2018; B_42_90s (37/24); V_42_60s (40/23); Rc_42_30s (42/25); Ic_42_30s (41/24); 2.5h; minimum S
# NOTE FLT B 2458217.46282 +/- 0.00017; 20180408 23:06:28 (UT) GEO
# NOTE FLT V 2458217.46229 +/- 0.00011; 20180408 23:05:42 (UT) GEO
# NOTE FLT Rc 2458217.46184 +/- 0.00012; 20180408 23:05:03 (UT) GEO
# NOTE FLT Ic 2458217.46234 +/- 0.00015; 20180408 23:05:46 (UT) GEO
# NOTE FLT BVRcIc average 2458217.46232 +/- 0.00017; 20180408 23:05:44 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458217.46184
Error (1 sigma): +0.00024/-0.00025 (Bootstrapping), +0.00007/-0.00007 (Prayer bead), +0.00012/-0.00012 (LSM)
Error (95% CI):  +0.00044/-0.00048 (Bootstrapping), +0.00010/-0.00010 (Prayer bead)
LSM: chi^2 = 89.8, n_freedom = 28
  • S: 2458217.46234 (4/8/2018, 23:05)
    HJDmin: 2458217.46601 +/- 0.00026  
    Heliocentric correction: 0.00367
    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 08/09 IV 2018; B_42_90s (37/24); V_42_60s (40/23); Rc_42_30s (42/25); Ic_42_30s (41/24); 2.5h; minimum S
# NOTE FLT B 2458217.46282 +/- 0.00017; 20180408 23:06:28 (UT) GEO
# NOTE FLT V 2458217.46229 +/- 0.00011; 20180408 23:05:42 (UT) GEO
# NOTE FLT Rc 2458217.46184 +/- 0.00012; 20180408 23:05:03 (UT) GEO
# NOTE FLT Ic 2458217.46234 +/- 0.00015; 20180408 23:05:46 (UT) GEO
# NOTE FLT BVRcIc average 2458217.46232 +/- 0.00017; 20180408 23:05:44 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458217.46234
Error (1 sigma): +0.00028/-0.00025 (Bootstrapping), +0.00007/-0.00007 (Prayer bead), +0.00015/-0.00015 (LSM)
Error (95% CI):  +0.00057/-0.00046 (Bootstrapping), +0.00017/-0.00016 (Prayer bead)
LSM: chi^2 = 75.9, n_freedom = 28
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - GV Leo, JD 2458217.39936
Comments