LP UMa (Eclipsing binary)

RA: 10h 33m 57.87s, DE: +58° 52' 15.70" (158.4911250000, 58.8710277771)

3/27/2017, 18:37 - 3/28/2017, 01:49 (UTC)

Data:
  • Observer: Martin Lehky
  • Created: 4/13/2017, 22:15
  • Station: Hradec Králové, CZ (MPC 048)
  • Instrument: EQ6 + 0.25-m f/4 + CCD ST7 + Rc
  • Photometric band: R
  • Time standard: Gjd
  • Brightness in: Mag
Note:
# NAME LP UMa
# VAR 10:33:57.87 +58:52:15.7 2452500.2181 0.3098971 12.53-12.8V EW (VSX 20170328)
# OBS Martin Lehky (Hradec Kralove CZ; 0.25-m f/4 reflector + CCD ST7)
# FLT Rc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 27/28 III 2017; Rc_255_90s (230); 7.1h; minimum S, maximum, minimum P
# NOTE 2457840.32262 +/- 0.00059; 20170327 19:44:34 (UT) GEO
# NOTE 2457840.48179 +/- 0.00042; 20170327 23:33:47 (UT) GEO
# COND fine clear weather
Determined minima
  • S: 2457840.32280 (3/27/2017, 19:44)
    HJDmin: 2457840.32517 +/- 0.00076  
    Heliocentric correction: 0.00237
    Note: 
    # NAME LP UMa
# VAR 10:33:57.87 +58:52:15.7 2452500.2181 0.3098971 12.53-12.8V EW (VSX 20170328)
# OBS Martin Lehky (Hradec Kralove CZ; 0.25-m f/4 reflector + CCD ST7)
# FLT Rc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 27/28 III 2017; Rc_255_90s (230); 7.1h; minimum S, maximum, minimum P
# NOTE 2457840.32262 +/- 0.00059; 20170327 19:44:34 (UT) GEO
# NOTE 2457840.48179 +/- 0.00042; 20170327 23:33:47 (UT) GEO
# COND fine clear weather

----- EBFit result: -----
Tmin = 2457840.32280
Error (1 sigma): +0.00056/-0.00096 (Bootstrapping), +0.00030/-0.00078 (Prayer bead), +0.00057/-0.00057 (LSM)
Error (95% CI):  +0.00123/-0.00178 (Bootstrapping), +0.00068/-0.00187 (Prayer bead)
LSM: chi^2 = 106.6, n_freedom = 81
  • P: 2457840.48196 (3/27/2017, 23:34)
    HJDmin: 2457840.48432 +/- 0.00064  
    Heliocentric correction: 0.00236
    Note: 
    # NAME LP UMa
# VAR 10:33:57.87 +58:52:15.7 2452500.2181 0.3098971 12.53-12.8V EW (VSX 20170328)
# OBS Martin Lehky (Hradec Kralove CZ; 0.25-m f/4 reflector + CCD ST7)
# FLT Rc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 27/28 III 2017; Rc_255_90s (230); 7.1h; minimum S, maximum, minimum P
# NOTE 2457840.32262 +/- 0.00059; 20170327 19:44:34 (UT) GEO
# NOTE 2457840.48179 +/- 0.00042; 20170327 23:33:47 (UT) GEO
# COND fine clear weather

----- EBFit result: -----
Tmin = 2457840.48196
Error (1 sigma): +0.00059/-0.00069 (Bootstrapping), +0.00063/-0.00052 (Prayer bead), +0.00041/-0.00041 (LSM)
Error (95% CI):  +0.00121/-0.00120 (Bootstrapping), +0.00100/-0.00088 (Prayer bead)
LSM: chi^2 = 206.3, n_freedom = 91
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - LP UMa, JD 2457840.27635
Comments