GV Leo (Eclipsing binary)

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

11/15/2012, 01:45 - 11/15/2012, 04:51 (UTC)

Data:
  • Observer: Martin Lehky
  • Created: 11/26/2012, 19:54
  • 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)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 14/15 XI 2012; B_51_90s (43/25); V_51_60s (45/23); R_51_30s (48/24); I_51_30s (51/26); minimum S
# NOTE FLT B 2456246.64123 +/- 0.00033; 20121115 03:23:22 (UT) GEO
# NOTE FLT V 2456246.64139 +/- 0.00019; 20121115 03:23:36 (UT) GEO
# NOTE FLT R 2456246.64185 +/- 0.00019; 20121115 03:24:16 (UT) GEO
# NOTE FLT I 2456246.64096 +/- 0.00020; 20121115 03:22:59 (UT) GEO
# NOTE FLT BVRI average 2456246.64135 +/- 0.00033; 20121115 03:23:33 (UT) GEO
# COND foggy weather
Determined minima
  • S: 2456246.64090 (11/15/2012, 03:22)
    HJDmin: 2456246.64035 +/- 0.00043  
    Heliocentric correction: -0.00055
    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)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 14/15 XI 2012; B_51_90s (43/25); V_51_60s (45/23); R_51_30s (48/24); I_51_30s (51/26); minimum S
# NOTE FLT B 2456246.64123 +/- 0.00033; 20121115 03:23:22 (UT) GEO
# NOTE FLT V 2456246.64139 +/- 0.00019; 20121115 03:23:36 (UT) GEO
# NOTE FLT R 2456246.64185 +/- 0.00019; 20121115 03:24:16 (UT) GEO
# NOTE FLT I 2456246.64096 +/- 0.00020; 20121115 03:22:59 (UT) GEO
# NOTE FLT BVRI average 2456246.64135 +/- 0.00033; 20121115 03:23:33 (UT) GEO
# COND foggy weather


----- EBFit result: -----
Tmin = 2456246.64090
Error (1 sigma): +0.00033/-0.00053 (Bootstrapping), +0.00020/-0.00028 (Prayer bead), +0.00062/-0.00062 (LSM)
Error (95% CI):  +0.00074/-0.00096 (Bootstrapping), +0.00103/-0.00057 (Prayer bead)
LSM: chi^2 = 15.8, n_freedom = 27
  • S: 2456246.64160 (11/15/2012, 03:23)
    HJDmin: 2456246.64112 +/- 0.00030  
    Heliocentric correction: -0.00048
    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)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 14/15 XI 2012; B_51_90s (43/25); V_51_60s (45/23); R_51_30s (48/24); I_51_30s (51/26); minimum S
# NOTE FLT B 2456246.64123 +/- 0.00033; 20121115 03:23:22 (UT) GEO
# NOTE FLT V 2456246.64139 +/- 0.00019; 20121115 03:23:36 (UT) GEO
# NOTE FLT R 2456246.64185 +/- 0.00019; 20121115 03:24:16 (UT) GEO
# NOTE FLT I 2456246.64096 +/- 0.00020; 20121115 03:22:59 (UT) GEO
# NOTE FLT BVRI average 2456246.64135 +/- 0.00033; 20121115 03:23:33 (UT) GEO
# COND foggy weather

----- EBFit result: -----
Tmin = 2456246.64160
Error (1 sigma): +0.00029/-0.00032 (Bootstrapping), +0.00016/-0.00018 (Prayer bead), +0.00033/-0.00033 (LSM)
Error (95% CI):  +0.00058/-0.00068 (Bootstrapping), +0.00030/-0.00026 (Prayer bead)
LSM: chi^2 = 23.6, n_freedom = 29
  • S: 2456246.64116 (11/15/2012, 03:23)
    HJDmin: 2456246.64042 +/- 0.00024  
    Heliocentric correction: -0.00074
    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)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 14/15 XI 2012; B_51_90s (43/25); V_51_60s (45/23); R_51_30s (48/24); I_51_30s (51/26); minimum S
# NOTE FLT B 2456246.64123 +/- 0.00033; 20121115 03:23:22 (UT) GEO
# NOTE FLT V 2456246.64139 +/- 0.00019; 20121115 03:23:36 (UT) GEO
# NOTE FLT R 2456246.64185 +/- 0.00019; 20121115 03:24:16 (UT) GEO
# NOTE FLT I 2456246.64096 +/- 0.00020; 20121115 03:22:59 (UT) GEO
# NOTE FLT BVRI average 2456246.64135 +/- 0.00033; 20121115 03:23:33 (UT) GEO
# COND foggy weather


----- EBFit result: -----
Tmin = 2456246.64116
Error (1 sigma): +0.00023/-0.00024 (Bootstrapping), +0.00009/-0.00008 (Prayer bead), +0.00023/-0.00023 (LSM)
Error (95% CI):  +0.00048/-0.00051 (Bootstrapping), +0.00018/-0.00032 (Prayer bead)
LSM: chi^2 = 48.2, n_freedom = 34
  • S: 2456246.64180 (11/15/2012, 03:24)
    HJDmin: 2456246.64106 +/- 0.00020  
    Heliocentric correction: -0.00074
    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)
# FLT BVRI
# RED CMunipack 1.1.26 + Peranso 2.50
# NOTE 14/15 XI 2012; B_51_90s (43/25); V_51_60s (45/23); R_51_30s (48/24); I_51_30s (51/26); minimum S
# NOTE FLT B 2456246.64123 +/- 0.00033; 20121115 03:23:22 (UT) GEO
# NOTE FLT V 2456246.64139 +/- 0.00019; 20121115 03:23:36 (UT) GEO
# NOTE FLT R 2456246.64185 +/- 0.00019; 20121115 03:24:16 (UT) GEO
# NOTE FLT I 2456246.64096 +/- 0.00020; 20121115 03:22:59 (UT) GEO
# NOTE FLT BVRI average 2456246.64135 +/- 0.00033; 20121115 03:23:33 (UT) GEO
# COND foggy weather


----- EBFit result: -----
Tmin = 2456246.64180
Error (1 sigma): +0.00020/-0.00020 (Bootstrapping), +0.00014/-0.00014 (Prayer bead), +0.00024/-0.00024 (LSM)
Error (95% CI):  +0.00037/-0.00043 (Bootstrapping), +0.00018/-0.00026 (Prayer bead)
LSM: chi^2 = 28.6, n_freedom = 34
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - GV Leo, JD 2456246.57337
Comments