GN Boo

RA: 14h 50m 07.80s, DE: +29° 38' 59.00" (222.5324999950, 29.6497222219)

5/31/2017, 8:29 PM - 5/31/2017, 10:59 PM (UTC)

Data:

Observer: Martin Lehky
Created: 6/7/2017 4:54:33 PM
Station: Hradec Králové, CZ (MPC 048)
Instrument: EQ6 + 0.25-m f/4 + CCD ST7 + BVRcIc
Photometric band: V
Time standard: Gjd
Brightness in: Mag

Note:

# NAME GN Boo
# VAR 14:50:07.77 +29:38:58.5 2451996.414 0.3016025 10.75-11.35 EW (VSX 20170601)
# OBS Martin Lehky (Hradec Kralove CZ; 0.25-m f/4 reflector + CCD ST7)
# FLT VRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 31 V / 01 VI 2017; V_40_90s (37/20); Rc_40_60s (38/20); Ic_40_60s (39/21); 2.5h; minimum P
# NOTE FLT V 2457905.41206 +/- 0.00019; 20170531 21:53:22 (UT) GEO
# NOTE FLT Rc 2457905.41185 +/- 0.00014; 20170531 21:53:04 (UT) GEO
# NOTE FLT Ic 2457905.41173 +/- 0.00025; 20170531 21:52:53 (UT) GEO
# NOTE FLT VRcIc average 2457905.41188 +/- 0.00025; 20170531 21:53:06 (UT) GEO
# COND clear weather

Determined minima

P: 2457905.41230 (5/31/2017, 21:53)
HJD_min: 2457905.41543
Heliocentric correction: 0.00313
Note:

# NAME GN Boo
# VAR 14:50:07.77 +29:38:58.5 2451996.414 0.3016025 10.75-11.35 EW (VSX 20170601)
# OBS Martin Lehky (Hradec Kralove CZ; 0.25-m f/4 reflector + CCD ST7)
# FLT VRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 31 V / 01 VI 2017; V_40_90s (37/20); Rc_40_60s (38/20); Ic_40_60s (39/21); 2.5h; minimum P
# NOTE FLT V 2457905.41206 +/- 0.00019; 20170531 21:53:22 (UT) GEO
# NOTE FLT Rc 2457905.41185 +/- 0.00014; 20170531 21:53:04 (UT) GEO
# NOTE FLT Ic 2457905.41173 +/- 0.00025; 20170531 21:52:53 (UT) GEO
# NOTE FLT VRcIc average 2457905.41188 +/- 0.00025; 20170531 21:53:06 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2457905.41230
Error (1 sigma): +0.00037/-0.00037 (Bootstrapping), +0.00013/-0.00011 (Prayer bead), +0.00018/-0.00018 (LSM)
Error (95% CI):  +0.00079/-0.00080 (Bootstrapping), +0.00021/-0.00015 (Prayer bead)
LSM: chi^2 = 87.4, n_freedom = 24

P: 2457905.41185 (5/31/2017, 21:53)
HJD_min: 2457905.41498
Heliocentric correction: 0.00313
Note:

# NAME GN Boo
# VAR 14:50:07.77 +29:38:58.5 2451996.414 0.3016025 10.75-11.35 EW (VSX 20170601)
# OBS Martin Lehky (Hradec Kralove CZ; 0.25-m f/4 reflector + CCD ST7)
# FLT VRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 31 V / 01 VI 2017; V_40_90s (37/20); Rc_40_60s (38/20); Ic_40_60s (39/21); 2.5h; minimum P
# NOTE FLT V 2457905.41206 +/- 0.00019; 20170531 21:53:22 (UT) GEO
# NOTE FLT Rc 2457905.41185 +/- 0.00014; 20170531 21:53:04 (UT) GEO
# NOTE FLT Ic 2457905.41173 +/- 0.00025; 20170531 21:52:53 (UT) GEO
# NOTE FLT VRcIc average 2457905.41188 +/- 0.00025; 20170531 21:53:06 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2457905.41185
Error (1 sigma): +0.00015/-0.00016 (Bootstrapping), +0.00006/-0.00004 (Prayer bead), +0.00014/-0.00014 (LSM)
Error (95% CI):  +0.00030/-0.00032 (Bootstrapping), +0.00007/-0.00007 (Prayer bead)
LSM: chi^2 = 30.1, n_freedom = 24

P: 2457905.41152 (5/31/2017, 21:52)
HJD_min: 2457905.41465
Heliocentric correction: 0.00313
Note:

# NAME GN Boo
# VAR 14:50:07.77 +29:38:58.5 2451996.414 0.3016025 10.75-11.35 EW (VSX 20170601)
# OBS Martin Lehky (Hradec Kralove CZ; 0.25-m f/4 reflector + CCD ST7)
# FLT VRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 31 V / 01 VI 2017; V_40_90s (37/20); Rc_40_60s (38/20); Ic_40_60s (39/21); 2.5h; minimum P
# NOTE FLT V 2457905.41206 +/- 0.00019; 20170531 21:53:22 (UT) GEO
# NOTE FLT Rc 2457905.41185 +/- 0.00014; 20170531 21:53:04 (UT) GEO
# NOTE FLT Ic 2457905.41173 +/- 0.00025; 20170531 21:52:53 (UT) GEO
# NOTE FLT VRcIc average 2457905.41188 +/- 0.00025; 20170531 21:53:06 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2457905.41152
Error (1 sigma): +0.00029/-0.00032 (Bootstrapping), +0.00006/-0.00005 (Prayer bead), +0.00023/-0.00023 (LSM)
Error (95% CI):  +0.00058/-0.00066 (Bootstrapping), +0.00010/-0.00015 (Prayer bead)
LSM: chi^2 = 37.9, n_freedom = 24

Actions:

. . .

Light curve

Catalog geometry

R_p: N/A +/- N/A R_Jup	R_*: N/A +/- N/A R_Sun
i: N/A +/- N/A °	A: N/A +/- N/A AU

Measured geometry

R_p: N/A _-N/A ^+N/A R_Jup
i: N/A _-N/A\|N/A ^+N/A\|N/A °

Neighborhood of the object, comparison and check stars

Comments