TITLE: GCN CIRCULAR NUMBER: 33181 SUBJECT: GRB 230116D: GIT optical follow-up DATE: 23/01/17 04:57:44 GMT FROM: Gaurav Waratkar at IIT,Bombay PGRpdiBkaXI9J2F1dG8nPlYuIFN3YWluIChJSVRCKSwgSC4gS3VtYXIgKElJ VEIpLCBLLiBBbmdhaWwgKElBTyksIFYuIEJoYWxlcmFvIChJSVRCKSwgRy4g Qy4gQW51cGFtYShJSUEpLCBTLiBCYXJ3YXkgKElJQSkgcmVwb3J0IG9uIGJl aGFsZiBvZiB0aGUgR0lUIHRlYW06PGRpdiBkaXI9ImF1dG8iPjxicj48L2Rp dj48ZGl2IGRpcj0iYXV0byI+V2Ugb2JzZXJ2ZWQgR1JCIDIzMDExNkQgZGV0 ZWN0ZWQgYnkgU3dpZnQtQkFUIChTb25iYXMgZXQgYWwuLCBHQ04gMzMxNzYp IGFuZCBvcHRpY2FsIGFmdGVyZ2xvdyBkaXNjb3ZlcmVkIGJ5IFouUC4gWmh1 IGV0IGFsLihHQ04gMzMxNzcpLCB3aXRoIDAuN20gR1JPV1RILUluZGlhIFRl bGVzY29wZSAoR0lUKS4gV2Ugc3RhcnRlZCB0aGUgb2JzZXJ2YXRpb24gYXQg MjE6Mzk6MDAgVVQgb24gMjAyMy0wMS0xNiwgaS5lLiwgMzQuMjggbWluIGFm dGVyIHRoZSBTd2lmdC9CQVQgdHJpZ2dlciBhbmQgdG9vayBtdWx0aXBsZSBl eHBvc3VyZXMgaW4gdGhlIGfigJksIHInIGFuZCBp4oCZIGZpbHRlcnMuIFdl IGNsZWFybHkgZGV0ZWN0ZWQgdGhlIGFmdGVyZ2xvdyBpbiBvdXIgc3RhY2tl ZCBpbWFnZSBhdCBSLkEuPSAwNjozNDoyOC4xMywgREVDLj0rNDk6NTI6MjAu Niwgd2l0aGluIHRoZSAyLjMgYXJjc2VjIHJhZGl1cyBjaXJjbGUgKEouUC4g T3Nib3JuZSBldCBhbC4sIEdDTiAzMzE4MCkuIFRoZSBwaG90b21ldHJpYyBy ZXN1bHRzIGZvbGxvdyBhczo8L2Rpdj48ZGl2IGRpcj0iYXV0byI+LS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLTwvZGl2PjxkaXYgZGlyPSJhdXRvIj4mbmJzcDtK RCAobWlkKSB8IFRfbWlkLVQwKGhycykgfCBFeHBvc3VyZSAoc2VjKSB8IEZp bHRlciB8IE1hZ25pdHVkZSAoQUIpIHw8L2Rpdj48ZGl2IGRpcj0iYXV0byI+ LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLTwvZGl2PjxkaXYgZGlyPSJhdXRvIj4m bmJzcDsyNDU5OTYxLjQwMjA4MzI4IHwgMC41NyB8IDEgeCAyMCB8IHInIHwg Jmd0OzE3LjYzIHw8L2Rpdj48ZGl2IGRpcj0iYXV0byI+Jm5ic3A7MjQ1OTk2 MS40MTc2MzMzNCB8IDAuOTQgfCA4IHggMzAwIChzdGFja2VkKSB8IGfigJkg fCAyMS4wNCArLy0gMC4wNyB8PC9kaXY+PGRpdiBkaXI9ImF1dG8iPiZuYnNw OzI0NTk5NjEuNDQ3OTQxNjQgfCAxLjY3IHwgOCB4IDMwMCAoc3RhY2tlZCkg fCBy4oCZIHwgMTkuOTkgKy8tIDAuMDUgfDwvZGl2PjxkaXYgZGlyPSJhdXRv Ij4mbmJzcDsyNDU5OTYxLjQ3MjU1MTQ4IHwgMi4yNiB8IDUgeCAzMDAgKHN0 YWNrZWQpIHwgaeKAmSB8ICZndDsxOS44NCB8PC9kaXY+PGRpdiBkaXI9ImF1 dG8iPi0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS08L2Rpdj48ZGl2IGRpcj0iYXV0 byI+PGJyPjwvZGl2PjxkaXYgZGlyPSJhdXRvIj5UaGUgcmVzdWx0cyBhcmUg Y29uc2lzdGVudCB3aXRoIFMuIE5hemFyb3YgZXQgYWwuKEdDTiAjMzMxNzgp IGFuZCBBLiBTLiBNb3Nrdml0aW4gZXQgYWwuKEdDTiAjMzMxNzkpLlRoZSBt YWduaXR1ZGVzIGFyZSBjYWxpYnJhdGVkIGFnYWluc3QgUGFuU1RBUlJTIERS MSAoQ2hhbWJlcnMgZXQgYWwuLCAyMDE2KSBhbmQgbm90IGNvcnJlY3RlZCBm b3IgR2FsYWN0aWMgZXh0aW5jdGlvbi48L2Rpdj48ZGl2IGRpcj0iYXV0byI+ PGJyPjwvZGl2PjxkaXYgZGlyPSJhdXRvIj5UaGUgR1JPV1RIIEluZGlhIFRl bGVzY29wZSAoR0lUOyBLdW1hciBldCBhbC4gMjAyMikgaXMgYSA3MC1jbSB0 ZWxlc2NvcGUgd2l0aCBhIDAuNy1kZWdyZWUgZmllbGQgb2Ygdmlldywgc2V0 IHVwIGJ5IHRoZSBJbmRpYW4gSW5zdGl0dXRlIG9mIEFzdHJvcGh5c2ljcyAo SUlBKSBhbmQgdGhlIEluZGlhbiBJbnN0aXR1dGUgb2YgVGVjaG5vbG9neSBC b21iYXkgKElJVEIpIHdpdGggZnVuZGluZyBmcm9tIERTVC1TRVJCIGFuZCBJ VVNTVEYuIEl0IGlzIGxvY2F0ZWQgYXQgdGhlIEluZGlhbiBBc3Ryb25vbWlj YWwgT2JzZXJ2YXRvcnkgKEhhbmxlKSwgb3BlcmF0ZWQgYnkgSUlBLiBXZSBh Y2tub3dsZWRnZSBmdW5kaW5nIGJ5IHRoZSBJSVRCIGFsdW1uaSBiYXRjaCBv ZiAxOTk0LCB3aGljaCBwYXJ0aWFsbHkgc3VwcG9ydHMgdGhlIHRlbGVzY29w ZeKAmXMgb3BlcmF0aW9ucy4gVGVsZXNjb3BlIHRlY2huaWNhbCBkZXRhaWxz IGFyZSBhdmFpbGFibGUgYXQgaHR0cHM6Ly9zaXRlcy5nb29nbGUuY29tL3Zp ZXcvZ3Jvd3RoaW5kaWEvLjwvZGl2PjxkaXYgZGlyPSJhdXRvIj48YnI+PC9k aXY+PC9kaXY+