GV Leo (Eclipsing binary)

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

2/27/2014, 18:49 - 2/27/2014, 21:35 (UTC)

Data:
  • Observer: Martin Lehky
  • Created: 4/25/2014, 20:08
  • 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 GV Leo
# VAR 10:11:59.17 +16:52:30.1 2452754.4602 0.266727 11.45-11.96V EW (VSX 20110311)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 27/28 II 2014; B_35_90s (25/7); V_35_60s (30/9); R_35_30s (30/9); I_35_30s (29/9); 3.0h; minimum S
# NOTE FLT B 2456716.34221 +/- 0.00085; 20140227 20:12:47 (UT) GEO
# NOTE FLT V 2456716.34124 +/- 0.00090; 20140227 20:11:23 (UT) GEO
# NOTE FLT R 2456716.34147 +/- 0.00184; 20140227 20:11:43 (UT) GEO
# NOTE FLT I 2456716.34081 +/- 0.00201; 20140227 20:10:46 (UT) GEO
# NOTE FLT BVRI average 2456716.34143 +/- 0.00201; 20140227 20:11:40 (UT) GEO
# COND clear weather => somewhat cloudy => clear weather
Determined minima
  • S: 2456716.34436 (2/27/2014, 20:15)
    HJDmin: 2456716.35005 +/- 0.00136  
    Heliocentric correction: 0.00569
    Note: 
    # NAME GV Leo
# VAR 10:11:59.17 +16:52:30.1 2452754.4602 0.266727 11.45-11.96V EW (VSX 20110311)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 27/28 II 2014; B_35_90s (25/7); V_35_60s (30/9); R_35_30s (30/9); I_35_30s (29/9); 3.0h; minimum S
# NOTE FLT B 2456716.34221 +/- 0.00085; 20140227 20:12:47 (UT) GEO
# NOTE FLT V 2456716.34124 +/- 0.00090; 20140227 20:11:23 (UT) GEO
# NOTE FLT R 2456716.34147 +/- 0.00184; 20140227 20:11:43 (UT) GEO
# NOTE FLT I 2456716.34081 +/- 0.00201; 20140227 20:10:46 (UT) GEO
# NOTE FLT BVRI average 2456716.34143 +/- 0.00201; 20140227 20:11:40 (UT) GEO
# COND clear weather => somewhat cloudy => clear weather

----- EBFit result: -----
Tmin = 2456716.34436
Error (1 sigma): +0.00222/-0.00051 (Bootstrapping), +0.00194/-0.00080 (Prayer bead), +0.00065/-0.00065 (LSM)
Error (95% CI):  +0.00448/-0.00135 (Bootstrapping), +0.00219/-0.00147 (Prayer bead)
LSM: chi^2 = 34.6, n_freedom = 20
  • S: 2456716.34458 (2/27/2014, 20:16)
    HJDmin: 2456716.35027 +/- 0.00251  
    Heliocentric correction: 0.00569
    Note: 
    # NAME GV Leo
# VAR 10:11:59.17 +16:52:30.1 2452754.4602 0.266727 11.45-11.96V EW (VSX 20110311)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 27/28 II 2014; B_35_90s (25/7); V_35_60s (30/9); R_35_30s (30/9); I_35_30s (29/9); 3.0h; minimum S
# NOTE FLT B 2456716.34221 +/- 0.00085; 20140227 20:12:47 (UT) GEO
# NOTE FLT V 2456716.34124 +/- 0.00090; 20140227 20:11:23 (UT) GEO
# NOTE FLT R 2456716.34147 +/- 0.00184; 20140227 20:11:43 (UT) GEO
# NOTE FLT I 2456716.34081 +/- 0.00201; 20140227 20:10:46 (UT) GEO
# NOTE FLT BVRI average 2456716.34143 +/- 0.00201; 20140227 20:11:40 (UT) GEO
# COND clear weather => somewhat cloudy => clear weather

----- EBFit result: -----
Tmin = 2456716.34458
Error (1 sigma): +0.00110/-0.00391 (Bootstrapping), +0.00093/-0.00362 (Prayer bead), +0.00035/-0.00035 (LSM)
Error (95% CI):  +0.00326/-0.00481 (Bootstrapping), +0.00339/-0.00570 (Prayer bead)
LSM: chi^2 = 138.8, n_freedom = 23
  • S: 2456716.34556 (2/27/2014, 20:17)
    HJDmin: 2456716.35125 +/- 0.00110  
    Heliocentric correction: 0.00569
    Note: 
    # NAME GV Leo
# VAR 10:11:59.17 +16:52:30.1 2452754.4602 0.266727 11.45-11.96V EW (VSX 20110311)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 27/28 II 2014; B_35_90s (25/7); V_35_60s (30/9); R_35_30s (30/9); I_35_30s (29/9); 3.0h; minimum S
# NOTE FLT B 2456716.34221 +/- 0.00085; 20140227 20:12:47 (UT) GEO
# NOTE FLT V 2456716.34124 +/- 0.00090; 20140227 20:11:23 (UT) GEO
# NOTE FLT R 2456716.34147 +/- 0.00184; 20140227 20:11:43 (UT) GEO
# NOTE FLT I 2456716.34081 +/- 0.00201; 20140227 20:10:46 (UT) GEO
# NOTE FLT BVRI average 2456716.34143 +/- 0.00201; 20140227 20:11:40 (UT) GEO
# COND clear weather => somewhat cloudy => clear weather

----- EBFit result: -----
Tmin = 2456716.34556
Error (1 sigma): +0.00051/-0.00169 (Bootstrapping), +0.00040/-0.00167 (Prayer bead), +0.00026/-0.00026 (LSM)
Error (95% CI):  +0.00144/-0.00349 (Bootstrapping), +0.00129/-0.00337 (Prayer bead)
LSM: chi^2 = 78.7, n_freedom = 25
  • S: 2456716.34107 (2/27/2014, 20:11)
    HJDmin: 2456716.34676 +/- 0.00145  
    Heliocentric correction: 0.00569
    Note: 
    # NAME GV Leo
# VAR 10:11:59.17 +16:52:30.1 2452754.4602 0.266727 11.45-11.96V EW (VSX 20110311)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 27/28 II 2014; B_35_90s (25/7); V_35_60s (30/9); R_35_30s (30/9); I_35_30s (29/9); 3.0h; minimum S
# NOTE FLT B 2456716.34221 +/- 0.00085; 20140227 20:12:47 (UT) GEO
# NOTE FLT V 2456716.34124 +/- 0.00090; 20140227 20:11:23 (UT) GEO
# NOTE FLT R 2456716.34147 +/- 0.00184; 20140227 20:11:43 (UT) GEO
# NOTE FLT I 2456716.34081 +/- 0.00201; 20140227 20:10:46 (UT) GEO
# NOTE FLT BVRI average 2456716.34143 +/- 0.00201; 20140227 20:11:40 (UT) GEO
# COND clear weather => somewhat cloudy => clear weather

----- EBFit result: -----
Tmin = 2456716.34107
Error (1 sigma): +0.00184/-0.00106 (Bootstrapping), +0.00061/-0.00076 (Prayer bead), +0.00071/-0.00071 (LSM)
Error (95% CI):  +0.00609/-0.00159 (Bootstrapping), +0.00146/-0.00142 (Prayer bead)
LSM: chi^2 = 91.3, n_freedom = 21
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - GV Leo, JD 2456716.28463
Comments