DW UMa
RA: 10h 33m 52.87s, DE: +58° 46' 54.70" (158.4702916667, 58.7818611104)
4/14/2018, 6:53 PM - 4/15/2018, 12:18 AM (UTC)
- Observer: Martin Lehky
- Created: 5/11/2018 12:00:30 PM
- 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 DW UMa # VAR 10:33:52.87 +58:46:54.7 2451605.97651 0.1366065324 13.6-18.0V NL/VY+E (VSX 20180415) # 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 14/15 IV 2018; Rc_188_90s (163); 5.4h; minimum P, minimum P # NOTE 2458223.33361 +/- 0.00029; 20180414 20:00:24 (UT) GEO # NOTE 2458223.46993 +/- 0.00037; 20180414 23:16:42 (UT) GEO # COND clear weather => somewhat cloudy (thick cirrus)
Determined minima
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P: 2458223.33339 (4/14/2018, 20:00)
HJDmin: 2458223.33467
Heliocentric correction: 0.00128
Note:# NAME DW UMa # VAR 10:33:52.87 +58:46:54.7 2451605.97651 0.1366065324 13.6-18.0V NL/VY+E (VSX 20180415) # 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 14/15 IV 2018; Rc_188_90s (163); 5.4h; minimum P, minimum P # NOTE 2458223.33361 +/- 0.00029; 20180414 20:00:24 (UT) GEO # NOTE 2458223.46993 +/- 0.00037; 20180414 23:16:42 (UT) GEO # COND clear weather => somewhat cloudy (thick cirrus) ----- EBFit result: ----- Tmin = 2458223.33457 Error (1 sigma): +0.00054/-0.00124 (Bootstrapping), +0.00082/-0.00102 (Prayer bead), +0.00027/-0.00027 (LSM) Error (95% CI): +0.00102/-0.00148 (Bootstrapping), +0.00151/-0.00175 (Prayer bead) LSM: chi^2 = 40.0, n_freedom = 16 ----- EBFit result: ----- Tmin = 2458223.33339 Error (1 sigma): +0.00023/-0.00017 (Bootstrapping), +0.00013/-0.00009 (Prayer bead), +0.00031/-0.00031 (LSM) Error (95% CI): +0.00060/-0.00041 (Bootstrapping), +0.00018/-0.00032 (Prayer bead) LSM: chi^2 = 8.0, n_freedom = 18
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P: 2458223.47011 (4/14/2018, 23:16)
HJDmin: 2458223.47138
Heliocentric correction: 0.00127
Note:# NAME DW UMa # VAR 10:33:52.87 +58:46:54.7 2451605.97651 0.1366065324 13.6-18.0V NL/VY+E (VSX 20180415) # 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 14/15 IV 2018; Rc_188_90s (163); 5.4h; minimum P, minimum P # NOTE 2458223.33361 +/- 0.00029; 20180414 20:00:24 (UT) GEO # NOTE 2458223.46993 +/- 0.00037; 20180414 23:16:42 (UT) GEO # COND clear weather => somewhat cloudy (thick cirrus) ----- EBFit result: ----- Tmin = 2458223.47011 Error (1 sigma): +0.00036/-0.00035 (Bootstrapping), +0.00011/-0.00012 (Prayer bead), +0.00034/-0.00034 (LSM) Error (95% CI): +0.00068/-0.00082 (Bootstrapping), +0.00026/-0.00039 (Prayer bead) LSM: chi^2 = 13.4, n_freedom = 17
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