GCN Circular 32961
Subject
GRB221120A: Montarrenti Observatory Upper Limit
Date
2022-11-21T07:30:57Z (2 years ago)
From
Simone Leonini at Monarrenti Obs <s.leonini@iol.it>
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<p dir="ltr">Simone Leonini, M. Conti, P. Rosi and L.M. Tinjaca Ramirez (Montarrenti Observatory, Siena, Italy) report:</p>
<p dir="ltr">We observed the field of the short GRB221120<a href="tel:221120"></a>A (Trigger 1141030, R.A.J. Eyles-Ferris et al., GCN Circ. 32955) with the automatic 0.53m RC telescope + U47 detector at Montarrenti Observatory (Siena, Italy, IAU code C88).</p>
<p dir="ltr">The observations were started under good weather conditions at 2022-11-20 22:35:10 UT (2.240s after notice) stacking 10x30s clear filter CCD exposures.</p>
<p dir="ltr">We have not found optical transient within the error-box of the Neil Gehrels Swift Observatory position (RA 02h 45m 17.00s, Dec +43d 11m 49.0s - J2000).<br> Mag. upper limit R = 19.86+/-0.14</p>
<p dir="ltr">Magnitudes were obtained from USNO-B1 catalogue and are not corrected for galactic extinction.</p>
<p dir="ltr">Observations are consistent with previous upper limits (Swain et al., GCN 32956).<br></p>
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