RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461312.37257 +- 0.00195 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461312.37565 +- 0.00174 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461312.37565 +- 0.00174 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461312.37257 +- 0.00195 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461312.37257 +- 0.00195 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this primary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461311.37586 +- 0.00153 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this primary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461311.37586 +- 0.00153 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461310.38175 +- 0.00222 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461310.38175 +- 0.00222 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461310.37802 +- 0.00168 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461310.37802 +- 0.00168 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461288.47481 +- 0.00180 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461288.47481 +- 0.00180 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461288.47423 +- 0.00159 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this secondary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461288.47423 +- 0.00159 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this primary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461311.37745 +- 0.00164 d.

RC 203 mm + TS 0.67x reducer (f/5.6), IMX571 mono, Baader Sloan filters
Forced aperture photometry (position from WCS) on co-added runs of 2-3 x 10 s frames; ensemble of ~150 Gaia DR3 GSPC comparison stars (synthetic SDSS). Untransformed. Absolute level uncertain by ~0.05-0.1 mag (position-dependent illumination correction outdated); timing unaffected. Our own fit of this primary minimum (symmetric polynomial, bootstrap errors): BJD_TDB 2461311.37745 +- 0.00164 d.