GQ Dra (Eclipsing binary)

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

10/21/2020, 17:09 - 10/21/2020, 20:48 (UTC)

Data:
  • Observer: Urbaník M.
  • Created: 10/22/2020, 20:34
  • 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. HD157893,2x2.
Determined minima
  • P: 2459144.31442 (10/21/2020, 19:32)
    HJDmin: 2459144.31324 +/- 0.00039  
    Heliocentric correction: -0.00118
    Note: 
    CCD+B,exp.34 s,comp. HD157893,2x2.

----- EBFit result: -----
Tmin = 2459144.31442
Error (1 sigma): +0.00040/-0.00038 (Bootstrapping), +0.00013/-0.00011 (Prayer bead), +0.00017/-0.00017 (LSM)
Error (95% CI):  +0.00079/-0.00070 (Bootstrapping), +0.00026/-0.00020 (Prayer bead)
LSM: chi^2 = 284.2, n_freedom = 55
  • P: 2459144.31422 (10/21/2020, 19:32)
    HJDmin: 2459144.31304 +/- 0.00036  
    Heliocentric correction: -0.00118
    Note: 
    CCD+V,exp.25 s,comp. HD157893,2x2.

----- EBFit result: -----
Tmin = 2459144.31422
Error (1 sigma): +0.00038/-0.00035 (Bootstrapping), +0.00021/-0.00025 (Prayer bead), +0.00014/-0.00014 (LSM)
Error (95% CI):  +0.00076/-0.00074 (Bootstrapping), +0.00051/-0.00048 (Prayer bead)
LSM: chi^2 = 424.9, n_freedom = 53
  • P: 2459144.31389 (10/21/2020, 19:32)
    HJDmin: 2459144.31271 +/- 0.00036  
    Heliocentric correction: -0.00118
    Note: 
    CCD+R,exp.16 s,comp. UCAC4-706-056318,2x2.

----- EBFit result: -----
Tmin = 2459144.31389
Error (1 sigma): +0.00036/-0.00035 (Bootstrapping), +0.00015/-0.00017 (Prayer bead), +0.00017/-0.00017 (LSM)
Error (95% CI):  +0.00069/-0.00071 (Bootstrapping), +0.00038/-0.00036 (Prayer bead)
LSM: chi^2 = 212.2, n_freedom = 56
  • P: 2459144.31392 (10/21/2020, 19:32)
    HJDmin: 2459144.31274 +/- 0.00062  
    Heliocentric correction: -0.00118
    Note: 
    CCD+I,exp.20 s,comp. HD157893,2x2.

----- EBFit result: -----
Tmin = 2459144.31392
Error (1 sigma): +0.00059/-0.00064 (Bootstrapping), +0.00026/-0.00024 (Prayer bead), +0.00028/-0.00028 (LSM)
Error (95% CI):  +0.00115/-0.00122 (Bootstrapping), +0.00060/-0.00042 (Prayer bead)
LSM: chi^2 = 291.2, n_freedom = 58
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - GQ Dra, JD 2459144.21526
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