EF Dra

RA: 18h 05m 30.40s, DE: +69° 45' 16.00" (271.3766666617, 69.7544444444)

5/26/2018, 9:23 PM - 5/27/2018, 1:42 AM (UTC)

Data:
  • Observer: Martin Lehky
  • Created: 5/29/2018 9:48:27 AM
  • 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 EF Dra
# VAR 18:05:30.41 +69:45:15.5 2452500.3075 0.4240310 10.38-10.71V EW/KW (VSX 20180527)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.5 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 26/27 V 2018; B_70_90s (67/43); V_70_60s (69/43); Rc_70_30s (69/43); Ic_70_30s (67/42); 4.3h; minimum P
# NOTE FLT B 2458265.50441 +/- 0.00019; 20180527 00:06:21 (UT) GEO
# NOTE FLT V 2458265.50354 +/- 0.00015; 20180527 00:05:06 (UT) GEO
# NOTE FLT Rc 2458265.50305 +/- 0.00014; 20180527 00:04:24 (UT) GEO
# NOTE FLT Ic 2458265.50267 +/- 0.00020; 20180527 00:03:51 (UT) GEO
# NOTE FLT BVRcIc average 2458265.50342 +/- 0.00020; 20180527 00:04:55 (UT) GEO
# COND clear weather
Determined minima
  • P: 2458265.50451 (5/27/2018, 00:06)
    HJDmin: 2458265.50419
    Heliocentric correction: -0.00032
    Note: 
    # NAME EF Dra
# VAR 18:05:30.41 +69:45:15.5 2452500.3075 0.4240310 10.38-10.71V EW/KW (VSX 20180527)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.5 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 26/27 V 2018; B_70_90s (67/43); V_70_60s (69/43); Rc_70_30s (69/43); Ic_70_30s (67/42); 4.3h; minimum P
# NOTE FLT B 2458265.50441 +/- 0.00019; 20180527 00:06:21 (UT) GEO
# NOTE FLT V 2458265.50354 +/- 0.00015; 20180527 00:05:06 (UT) GEO
# NOTE FLT Rc 2458265.50305 +/- 0.00014; 20180527 00:04:24 (UT) GEO
# NOTE FLT Ic 2458265.50267 +/- 0.00020; 20180527 00:03:51 (UT) GEO
# NOTE FLT BVRcIc average 2458265.50342 +/- 0.00020; 20180527 00:04:55 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458265.50451
Error (1 sigma): +0.00028/-0.00028 (Bootstrapping), +0.00040/-0.00049 (Prayer bead), +0.00019/-0.00019 (LSM)
Error (95% CI):  +0.00061/-0.00064 (Bootstrapping), +0.00058/-0.00065 (Prayer bead)
LSM: chi^2 = 105.9, n_freedom = 42
  • P: 2458265.50351 (5/27/2018, 00:05)
    HJDmin: 2458265.50319
    Heliocentric correction: -0.00032
    Note: 
    # NAME EF Dra
# VAR 18:05:30.41 +69:45:15.5 2452500.3075 0.4240310 10.38-10.71V EW/KW (VSX 20180527)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.5 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 26/27 V 2018; B_70_90s (67/43); V_70_60s (69/43); Rc_70_30s (69/43); Ic_70_30s (67/42); 4.3h; minimum P
# NOTE FLT B 2458265.50441 +/- 0.00019; 20180527 00:06:21 (UT) GEO
# NOTE FLT V 2458265.50354 +/- 0.00015; 20180527 00:05:06 (UT) GEO
# NOTE FLT Rc 2458265.50305 +/- 0.00014; 20180527 00:04:24 (UT) GEO
# NOTE FLT Ic 2458265.50267 +/- 0.00020; 20180527 00:03:51 (UT) GEO
# NOTE FLT BVRcIc average 2458265.50342 +/- 0.00020; 20180527 00:04:55 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458265.50351
Error (1 sigma): +0.00027/-0.00026 (Bootstrapping), +0.00014/-0.00015 (Prayer bead), +0.00015/-0.00015 (LSM)
Error (95% CI):  +0.00055/-0.00051 (Bootstrapping), +0.00021/-0.00024 (Prayer bead)
LSM: chi^2 = 144.9, n_freedom = 47
  • P: 2458265.50285 (5/27/2018, 00:04)
    HJDmin: 2458265.50253
    Heliocentric correction: -0.00032
    Note: 
    # NAME EF Dra
# VAR 18:05:30.41 +69:45:15.5 2452500.3075 0.4240310 10.38-10.71V EW/KW (VSX 20180527)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.5 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 26/27 V 2018; B_70_90s (67/43); V_70_60s (69/43); Rc_70_30s (69/43); Ic_70_30s (67/42); 4.3h; minimum P
# NOTE FLT B 2458265.50441 +/- 0.00019; 20180527 00:06:21 (UT) GEO
# NOTE FLT V 2458265.50354 +/- 0.00015; 20180527 00:05:06 (UT) GEO
# NOTE FLT Rc 2458265.50305 +/- 0.00014; 20180527 00:04:24 (UT) GEO
# NOTE FLT Ic 2458265.50267 +/- 0.00020; 20180527 00:03:51 (UT) GEO
# NOTE FLT BVRcIc average 2458265.50342 +/- 0.00020; 20180527 00:04:55 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458265.50285
Error (1 sigma): +0.00023/-0.00021 (Bootstrapping), +0.00010/-0.00008 (Prayer bead), +0.00015/-0.00015 (LSM)
Error (95% CI):  +0.00046/-0.00041 (Bootstrapping), +0.00015/-0.00016 (Prayer bead)
LSM: chi^2 = 102.2, n_freedom = 46
  • P: 2458265.50267 (5/27/2018, 00:03)
    HJDmin: 2458265.50235
    Heliocentric correction: -0.00032
    Note: 
    # NAME EF Dra
# VAR 18:05:30.41 +69:45:15.5 2452500.3075 0.4240310 10.38-10.71V EW/KW (VSX 20180527)
# OBS Martin Lehky (Hradec Kralove CZ; 0.40-m f/5 reflector + CCD G2-1600)
# FLT BVRcIc
# RED CMunipack 1.1.26 + Peranso 2.5 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 26/27 V 2018; B_70_90s (67/43); V_70_60s (69/43); Rc_70_30s (69/43); Ic_70_30s (67/42); 4.3h; minimum P
# NOTE FLT B 2458265.50441 +/- 0.00019; 20180527 00:06:21 (UT) GEO
# NOTE FLT V 2458265.50354 +/- 0.00015; 20180527 00:05:06 (UT) GEO
# NOTE FLT Rc 2458265.50305 +/- 0.00014; 20180527 00:04:24 (UT) GEO
# NOTE FLT Ic 2458265.50267 +/- 0.00020; 20180527 00:03:51 (UT) GEO
# NOTE FLT BVRcIc average 2458265.50342 +/- 0.00020; 20180527 00:04:55 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458265.50267
Error (1 sigma): +0.00030/-0.00031 (Bootstrapping), +0.00021/-0.00035 (Prayer bead), +0.00021/-0.00021 (LSM)
Error (95% CI):  +0.00060/-0.00062 (Bootstrapping), +0.00031/-0.00055 (Prayer bead)
LSM: chi^2 = 121.7, n_freedom = 49
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - EF Dra, JD 2458265.39104
Comments