DN Boo - JD 2458957.38431

DN Boo (Eclipsing binary)

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

4/17/2020, 21:13 - 4/18/2020, 02:28 (UTC)

Data:

Observer: Martin Lehky
Created: 7/23/2020, 13:35
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 11.06-11.26V EW (VSX 20200418)
# 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 17/18/ IV 2020; B_143_60s (126/45); V_143_30s (131/46); Rc_143_15s (130/47); Ic_143_15s (130/46); 5.3h; minimum P
# NOTE FLT B 2458957.47104 +/- 0.00021; 20200417 23:18:18 (UT) GEO
# NOTE FLT V 2458957.47141 +/- 0.00017; 20200417 23:18:50 (UT) GEO
# NOTE FLT Rc 2458957.47089 +/- 0.00019; 20200417 23:18:05 (UT) GEO
# NOTE FLT Ic 2458957.47185 +/- 0.00028; 20200417 23:19:28 (UT) GEO
# NOTE FLT BVRcIc average 2458957.47130 +/- 0.00028; 20200417 23:18:40 (UT) GEO
# COND clear weather

Determined minima

P: 2458957.47103 (4/17/2020, 23:18)
HJD_min: 2458957.47628 +/- 0.00021
Heliocentric correction: 0.00525
Note:

# NAME DN Boo
# VAR 13:51:42.04 +14:18:05.9 2454899.854 0.447564 11.06-11.26V EW (VSX 20200418)
# 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 17/18/ IV 2020; B_143_60s (126/45); V_143_30s (131/46); Rc_143_15s (130/47); Ic_143_15s (130/46); 5.3h; minimum P
# NOTE FLT B 2458957.47104 +/- 0.00021; 20200417 23:18:18 (UT) GEO
# NOTE FLT V 2458957.47141 +/- 0.00017; 20200417 23:18:50 (UT) GEO
# NOTE FLT Rc 2458957.47089 +/- 0.00019; 20200417 23:18:05 (UT) GEO
# NOTE FLT Ic 2458957.47185 +/- 0.00028; 20200417 23:19:28 (UT) GEO
# NOTE FLT BVRcIc average 2458957.47130 +/- 0.00028; 20200417 23:18:40 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458957.47103
Error (1 sigma): +0.00020/-0.00022 (Bootstrapping), +0.00010/-0.00011 (Prayer bead), +0.00021/-0.00021 (LSM)
Error (95% CI):  +0.00042/-0.00043 (Bootstrapping), +0.00020/-0.00015 (Prayer bead)
LSM: chi^2 = 97.1, n_freedom = 98

P: 2458957.47141 (4/17/2020, 23:18)
HJD_min: 2458957.47666 +/- 0.00019
Heliocentric correction: 0.00525
Note:

# NAME DN Boo
# VAR 13:51:42.04 +14:18:05.9 2454899.854 0.447564 11.06-11.26V EW (VSX 20200418)
# 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 17/18/ IV 2020; B_143_60s (126/45); V_143_30s (131/46); Rc_143_15s (130/47); Ic_143_15s (130/46); 5.3h; minimum P
# NOTE FLT B 2458957.47104 +/- 0.00021; 20200417 23:18:18 (UT) GEO
# NOTE FLT V 2458957.47141 +/- 0.00017; 20200417 23:18:50 (UT) GEO
# NOTE FLT Rc 2458957.47089 +/- 0.00019; 20200417 23:18:05 (UT) GEO
# NOTE FLT Ic 2458957.47185 +/- 0.00028; 20200417 23:19:28 (UT) GEO
# NOTE FLT BVRcIc average 2458957.47130 +/- 0.00028; 20200417 23:18:40 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458957.47141
Error (1 sigma): +0.00019/-0.00019 (Bootstrapping), +0.00005/-0.00005 (Prayer bead), +0.00017/-0.00017 (LSM)
Error (95% CI):  +0.00036/-0.00037 (Bootstrapping), +0.00010/-0.00009 (Prayer bead)
LSM: chi^2 = 130.7, n_freedom = 98

P: 2458957.47088 (4/17/2020, 23:18)
HJD_min: 2458957.47613 +/- 0.00028
Heliocentric correction: 0.00525
Note:

# NAME DN Boo
# VAR 13:51:42.04 +14:18:05.9 2454899.854 0.447564 11.06-11.26V EW (VSX 20200418)
# 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 17/18/ IV 2020; B_143_60s (126/45); V_143_30s (131/46); Rc_143_15s (130/47); Ic_143_15s (130/46); 5.3h; minimum P
# NOTE FLT B 2458957.47104 +/- 0.00021; 20200417 23:18:18 (UT) GEO
# NOTE FLT V 2458957.47141 +/- 0.00017; 20200417 23:18:50 (UT) GEO
# NOTE FLT Rc 2458957.47089 +/- 0.00019; 20200417 23:18:05 (UT) GEO
# NOTE FLT Ic 2458957.47185 +/- 0.00028; 20200417 23:19:28 (UT) GEO
# NOTE FLT BVRcIc average 2458957.47130 +/- 0.00028; 20200417 23:18:40 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458957.47088
Error (1 sigma): +0.00027/-0.00028 (Bootstrapping), +0.00006/-0.00004 (Prayer bead), +0.00019/-0.00019 (LSM)
Error (95% CI):  +0.00055/-0.00055 (Bootstrapping), +0.00010/-0.00009 (Prayer bead)
LSM: chi^2 = 200.4, n_freedom = 98

P: 2458957.47186 (4/17/2020, 23:19)
HJD_min: 2458957.47711 +/- 0.00031
Heliocentric correction: 0.00525
Note:

# NAME DN Boo
# VAR 13:51:42.04 +14:18:05.9 2454899.854 0.447564 11.06-11.26V EW (VSX 20200418)
# 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 17/18/ IV 2020; B_143_60s (126/45); V_143_30s (131/46); Rc_143_15s (130/47); Ic_143_15s (130/46); 5.3h; minimum P
# NOTE FLT B 2458957.47104 +/- 0.00021; 20200417 23:18:18 (UT) GEO
# NOTE FLT V 2458957.47141 +/- 0.00017; 20200417 23:18:50 (UT) GEO
# NOTE FLT Rc 2458957.47089 +/- 0.00019; 20200417 23:18:05 (UT) GEO
# NOTE FLT Ic 2458957.47185 +/- 0.00028; 20200417 23:19:28 (UT) GEO
# NOTE FLT BVRcIc average 2458957.47130 +/- 0.00028; 20200417 23:18:40 (UT) GEO
# COND clear weather

----- EBFit result: -----
Tmin = 2458957.47186
Error (1 sigma): +0.00030/-0.00032 (Bootstrapping), +0.00006/-0.00006 (Prayer bead), +0.00028/-0.00028 (LSM)
Error (95% CI):  +0.00060/-0.00061 (Bootstrapping), +0.00012/-0.00009 (Prayer bead)
LSM: chi^2 = 107.0, n_freedom = 100

Actions:

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Light curve

Catalog geometry

R_p: N/A +/- N/A R_Jup	R_*: N/A +/- N/A R_Sun
i: N/A +/- N/A °	A: N/A +/- N/A AU

Measured geometry

R_p: N/A _-N/A ^+N/A R_Jup
i: N/A _-N/A\|N/A ^+N/A\|N/A °

Neighborhood of the object, comparison and check stars

Comments