GQ Dra (Eclipsing binary)

RA: 17h 25m 29.44s, DE: +51° 29' 35.10" (261.3726666567, 51.4930833330)

8/13/2020, 19:35 - 8/13/2020, 22:39 (UTC)

Data:
  • Observer: Urbaník M.
  • Created: 8/14/2020, 17:20
  • Station: Kysucká hvezdáreň
  • Instrument: SKY-WATCHER NWT 150/750 + MII G2-8300
  • Photometric band: B
  • Time standard: Gjd
  • Brightness in: Mag
Note:
CCD+B, exp.34 s,comp. UCAC4 706-056318,2x2.
Determined minima
  • P: 2459075.37986 (8/13/2020, 21:06)
    HJDmin: 2459075.38035 +/- 0.00020  
    Heliocentric correction: 0.00049
    Note: 
    CCD+V, exp.25 s,comp. UCAC4 706-056318,2x2.

----- EBFit result: -----
Tmin = 2459075.37986
Error (1 sigma): +0.00019/-0.00020 (Bootstrapping), +0.00010/-0.00011 (Prayer bead), +0.00009/-0.00009 (LSM)
Error (95% CI):  +0.00040/-0.00040 (Bootstrapping), +0.00019/-0.00015 (Prayer bead)
LSM: chi^2 = 366.0, n_freedom = 64
  • P: 2459075.38007 (8/13/2020, 21:07)
    HJDmin: 2459075.38056 +/- 0.00026  
    Heliocentric correction: 0.00049
    Note: 
    CCD+B, exp.34 s,comp. UCAC4 706-056318,2x2.

----- EBFit result: -----
Tmin = 2459075.38007
Error (1 sigma): +0.00024/-0.00028 (Bootstrapping), +0.00008/-0.00008 (Prayer bead), +0.00014/-0.00014 (LSM)
Error (95% CI):  +0.00048/-0.00050 (Bootstrapping), +0.00013/-0.00016 (Prayer bead)
LSM: chi^2 = 192.8, n_freedom = 64
  • P: 2459075.37993 (8/13/2020, 21:07)
    HJDmin: 2459075.38042 +/- 0.00035  
    Heliocentric correction: 0.00049
    Note: 
    CCD+R, exp.16 s,comp. UCAC4 706-056318,2x2.

----- EBFit result: -----
Tmin = 2459075.37993
Error (1 sigma): +0.00034/-0.00035 (Bootstrapping), +0.00011/-0.00011 (Prayer bead), +0.00015/-0.00015 (LSM)
Error (95% CI):  +0.00068/-0.00068 (Bootstrapping), +0.00019/-0.00028 (Prayer bead)
LSM: chi^2 = 310.9, n_freedom = 59
  • P: 2459075.38002 (8/13/2020, 21:07)
    HJDmin: 2459075.38051 +/- 0.00042  
    Heliocentric correction: 0.00049
    Note: 
    CCD+I, exp.20 s,comp. UCAC4 706-056318,2x2.

----- EBFit result: -----
Tmin = 2459075.38002
Error (1 sigma): +0.00040/-0.00043 (Bootstrapping), +0.00024/-0.00030 (Prayer bead), +0.00032/-0.00032 (LSM)
Error (95% CI):  +0.00082/-0.00084 (Bootstrapping), +0.00071/-0.00060 (Prayer bead)
LSM: chi^2 = 96.6, n_freedom = 46
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - GQ Dra, JD 2459075.31640
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