DN Boo (Eclipsing binary)

RA: 13h 51m 42.00s, DE: +14° 18' 06.00" (207.9250000000, 14.3016666667)

2/25/2019, 02:40 - 2/25/2019, 05:04 (UTC)

Data:
  • Observer: Martin Lehky
  • Created: 3/28/2019, 19:27
  • 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 DN Boo
# VAR 13:51:42.04 +14:18:05.9 2454899.854 0.447564 11.17-11.38Hp EW (VSX 20190225)
# 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 24/25 II 2019; B_65_60s (60/35); V_65_30s (63/37); Rc_65_15s (63/36); Ic_65_15s (65/36); 2.4h; minimum S
# NOTE FLT B 2458539.66885 +/- 0.00036; 20190225 04:03:09 (UT) GEO
# NOTE FLT V 2458539.66937 +/- 0.00029; 20190225 04:03:54 (UT) GEO
# NOTE FLT Rc 2458539.66874 +/- 0.00030; 20190225 04:02:59 (UT) GEO
# NOTE FLT Ic 2458539.66853 +/- 0.00044; 20190225 04:02:41 (UT) GEO
# NOTE FLT BVRcIc average 2458539.66887 +/- 0.00044; 20190225 01:03:10 (UT) GEO
# COND clear weather
Determined minima
  • S: 2458539.66885 (2/25/2019, 04:03)
    HJDmin: 2458539.67261 +/- 0.00038  
    Heliocentric correction: 0.00376
    Note: 
    # NAME DN Boo
# VAR 13:51:42.04 +14:18:05.9 2454899.854 0.447564 11.17-11.38Hp EW (VSX 20190225)
# 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 24/25 II 2019; B_65_60s (60/35); V_65_30s (63/37); Rc_65_15s (63/36); Ic_65_15s (65/36); 2.4h; minimum S
# NOTE FLT B 2458539.66885 +/- 0.00036; 20190225 04:03:09 (UT) GEO
# NOTE FLT V 2458539.66937 +/- 0.00029; 20190225 04:03:54 (UT) GEO
# NOTE FLT Rc 2458539.66874 +/- 0.00030; 20190225 04:02:59 (UT) GEO
# NOTE FLT Ic 2458539.66853 +/- 0.00044; 20190225 04:02:41 (UT) GEO
# NOTE FLT BVRcIc average 2458539.66887 +/- 0.00044; 20190225 01:03:10 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458539.66885
Error (1 sigma): +0.00036/-0.00040 (Bootstrapping), +0.00021/-0.00020 (Prayer bead), +0.00036/-0.00036 (LSM)
Error (95% CI):  +0.00074/-0.00079 (Bootstrapping), +0.00032/-0.00032 (Prayer bead)
LSM: chi^2 = 64.2, n_freedom = 55
  • S: 2458539.66937 (2/25/2019, 04:03)
    HJDmin: 2458539.67313 +/- 0.00032  
    Heliocentric correction: 0.00376
    Note: 
    # NAME DN Boo
# VAR 13:51:42.04 +14:18:05.9 2454899.854 0.447564 11.17-11.38Hp EW (VSX 20190225)
# 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 24/25 II 2019; B_65_60s (60/35); V_65_30s (63/37); Rc_65_15s (63/36); Ic_65_15s (65/36); 2.4h; minimum S
# NOTE FLT B 2458539.66885 +/- 0.00036; 20190225 04:03:09 (UT) GEO
# NOTE FLT V 2458539.66937 +/- 0.00029; 20190225 04:03:54 (UT) GEO
# NOTE FLT Rc 2458539.66874 +/- 0.00030; 20190225 04:02:59 (UT) GEO
# NOTE FLT Ic 2458539.66853 +/- 0.00044; 20190225 04:02:41 (UT) GEO
# NOTE FLT BVRcIc average 2458539.66887 +/- 0.00044; 20190225 01:03:10 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458539.66937
Error (1 sigma): +0.00033/-0.00031 (Bootstrapping), +0.00008/-0.00006 (Prayer bead), +0.00029/-0.00029 (LSM)
Error (95% CI):  +0.00063/-0.00059 (Bootstrapping), +0.00015/-0.00026 (Prayer bead)
LSM: chi^2 = 63.6, n_freedom = 58
  • S: 2458539.66874 (2/25/2019, 04:02)
    HJDmin: 2458539.67250 +/- 0.00039  
    Heliocentric correction: 0.00376
    Note: 
    # NAME DN Boo
# VAR 13:51:42.04 +14:18:05.9 2454899.854 0.447564 11.17-11.38Hp EW (VSX 20190225)
# 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 24/25 II 2019; B_65_60s (60/35); V_65_30s (63/37); Rc_65_15s (63/36); Ic_65_15s (65/36); 2.4h; minimum S
# NOTE FLT B 2458539.66885 +/- 0.00036; 20190225 04:03:09 (UT) GEO
# NOTE FLT V 2458539.66937 +/- 0.00029; 20190225 04:03:54 (UT) GEO
# NOTE FLT Rc 2458539.66874 +/- 0.00030; 20190225 04:02:59 (UT) GEO
# NOTE FLT Ic 2458539.66853 +/- 0.00044; 20190225 04:02:41 (UT) GEO
# NOTE FLT BVRcIc average 2458539.66887 +/- 0.00044; 20190225 01:03:10 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458539.66874
Error (1 sigma): +0.00040/-0.00038 (Bootstrapping), +0.00012/-0.00007 (Prayer bead), +0.00030/-0.00030 (LSM)
Error (95% CI):  +0.00074/-0.00079 (Bootstrapping), +0.00018/-0.00021 (Prayer bead)
LSM: chi^2 = 108.0, n_freedom = 58
  • S: 2458539.66811 (2/25/2019, 04:02)
    HJDmin: 2458539.67187 +/- 0.00062  
    Heliocentric correction: 0.00376
    Note: 
    # NAME DN Boo
# VAR 13:51:42.04 +14:18:05.9 2454899.854 0.447564 11.17-11.38Hp EW (VSX 20190225)
# 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 24/25 II 2019; B_65_60s (60/35); V_65_30s (63/37); Rc_65_15s (63/36); Ic_65_15s (65/36); 2.4h; minimum S
# NOTE FLT B 2458539.66885 +/- 0.00036; 20190225 04:03:09 (UT) GEO
# NOTE FLT V 2458539.66937 +/- 0.00029; 20190225 04:03:54 (UT) GEO
# NOTE FLT Rc 2458539.66874 +/- 0.00030; 20190225 04:02:59 (UT) GEO
# NOTE FLT Ic 2458539.66853 +/- 0.00044; 20190225 04:02:41 (UT) GEO
# NOTE FLT BVRcIc average 2458539.66887 +/- 0.00044; 20190225 01:03:10 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458539.66793
Error (1 sigma): +0.00065/-0.00068 (Bootstrapping), +0.00047/-0.00074 (Prayer bead), +0.00041/-0.00041 (LSM)
Error (95% CI):  +0.00110/-0.00153 (Bootstrapping), +0.00166/-0.00088 (Prayer bead)
LSM: chi^2 = 102.8, n_freedom = 60


----- EBFit result: -----
Tmin = 2458539.66811
Error (1 sigma): +0.00060/-0.00064 (Bootstrapping), +0.00022/-0.00033 (Prayer bead), +0.00043/-0.00043 (LSM)
Error (95% CI):  +0.00115/-0.00142 (Bootstrapping), +0.00105/-0.00046 (Prayer bead)
LSM: chi^2 = 94.4, n_freedom = 56
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - DN Boo, JD 2458539.61169
Comments