diff --git a/app/routes/circulars.$circularId.($version)/AstroData.components.tsx b/app/routes/circulars.$circularId.($version)/AstroData.components.tsx
index 146e62a97..bb76ee771 100644
--- a/app/routes/circulars.$circularId.($version)/AstroData.components.tsx
+++ b/app/routes/circulars.$circularId.($version)/AstroData.components.tsx
@@ -34,7 +34,7 @@ export function GcnCircular({
   return (
     <AstroDataLinkWithTooltip
       to={`/circulars/${value}${searchString}`}
-      fetch={() =>
+      fetchFunction={() =>
         fetchTooltipData<typeof circularTooltipLoader>('circular', value)
       }
       label={({ subject, submitter }) => (
@@ -54,8 +54,10 @@ export function Arxiv({ children, value }: JSX.IntrinsicElements['data']) {
   return (
     <AstroDataLinkWithTooltip
       to={`https://arxiv.org/abs/${value}`}
-      external
-      fetch={() => fetchTooltipData<typeof arxivTooltipLoader>('arxiv', value)}
+      ext
+      fetchFunction={() =>
+        fetchTooltipData<typeof arxivTooltipLoader>('arxiv', value)
+      }
       label={({ title, year, authors }) => (
         <>
           <div>arXiv:{value}</div>
@@ -75,8 +77,10 @@ export function Doi({ children, value }: JSX.IntrinsicElements['data']) {
   return (
     <AstroDataLinkWithTooltip
       to={`https://doi.org/${value}`}
-      external
-      fetch={() => fetchTooltipData<typeof doiTooltipLoader>('doi', value)}
+      ext
+      fetchFunction={() =>
+        fetchTooltipData<typeof doiTooltipLoader>('doi', value)
+      }
       label={({ authors, pub, year, title }) => (
         <>
           <div>{pub}</div>
@@ -96,8 +100,10 @@ export function Tns({ children, value }: JSX.IntrinsicElements['data']) {
   return (
     <AstroDataLinkWithTooltip
       to={`https://www.wis-tns.org/object/${value}`}
-      external
-      fetch={() => fetchTooltipData<typeof tnsTooltipLoader>('tns', value)}
+      ext
+      fetchFunction={() =>
+        fetchTooltipData<typeof tnsTooltipLoader>('tns', value)
+      }
       label={({ ra, dec, names }) => (
         <>
           <div>{names.join(', ')}</div>
diff --git a/app/routes/circulars.$circularId.($version)/AstroDataContext.tsx b/app/routes/circulars.$circularId.($version)/AstroDataContext.tsx
index 1db18a064..01ff3841a 100644
--- a/app/routes/circulars.$circularId.($version)/AstroDataContext.tsx
+++ b/app/routes/circulars.$circularId.($version)/AstroDataContext.tsx
@@ -70,14 +70,15 @@ export const AstroDataLink = forwardRef(
  * position the tooltip if the size changes when the content fills in.
  */
 export function AstroDataLinkWithTooltip<T>({
-  fetch,
+  fetchFunction,
   label,
   children,
+  ext,
   ...props
 }: Omit<Parameters<typeof AstroDataLink>[0], 'ref'> & {
-  fetch: () => T
+  fetchFunction: () => T
   label: (resolved: Awaited<T>) => ReactNode
-  external?: boolean
+  ext?: boolean
 }) {
   return (
     <Tooltip
@@ -94,7 +95,7 @@ export function AstroDataLinkWithTooltip<T>({
             }
           >
             <Await
-              resolve={fetch()}
+              resolve={fetchFunction()}
               errorElement={
                 <>
                   <div>Not found</div>
@@ -109,7 +110,7 @@ export function AstroDataLinkWithTooltip<T>({
         </div>
       }
       asCustom={AstroDataLink}
-      external={Boolean(external)}
+      external={Boolean(ext)}
     >
       {children}
     </Tooltip>
diff --git a/sandbox-seed.json b/sandbox-seed.json
index bddc0fa55..35534487e 100644
--- a/sandbox-seed.json
+++ b/sandbox-seed.json
@@ -8,6 +8,16 @@
       "submitter": "jlv93@cornell.edu",
       "body": "Jada L. Vail, Maggie L. Li (Cornell), Jacob Wise (LJMU), D. A. Perley (LJMU), Anna Y. Q. Ho (Cornell), Eric Burns (LSU), Michael Coughlin (UMN) report: \n\nWe report the identification of a fast-evolving red transient by the Zwicky Transient Facility (ZTF) and Spectral Energy Distribution Machine (SEDM). AT 2023sva is located at the position (J2000) of:\n\nRA = 00:56:59.19 (14.24662 deg)\nDec = +80:08:44.12 (80.14559 deg)\n\nIt was first detected by ZTF on 2023-09-17 09:38:31 UT at r = 17.71 +/- 0.05 mag (MJD=60204.40175) and g = 18.49 +/- 0.06 mag (MJD=60204.44580) as part of the public all-sky survey. ZTF also obtained a non-detection ~2 days prior at r > 20.91 mag  (MJD=60202.24319), indicating a fast rise rate of >1.5 mag/day in r. The transient was detected in follow-up Spectral Energy Distribution Machine (SEDM) observations at r = 20.22 +/- 0.08 mag (MJD=60205.48761) and g = 20.73 +/- 0.10 mag (MJD=60205.48597), implying red colors and rapid fading (~2.3 mag/day fade in r). \n\nAT2023sva was also detected by ATLAS (ATLAS23srq) at MJD 60204.43499 and saved to the TNS (Tonry et al. 2023, TNS Report No. 188327). The last ATLAS non-detection was at MJD 60202.48470. The Galactic latitude of AT 2023sva is 17.27 degrees, and the Galactic reddening toward the direction of AT 2023sva is: E(g-r) = 0.249 from Schlafly & Finkbeiner (2011).\n\nThe fast rise, fast decay, red color, and lack of an archival optical counterpart make AT 2023sva a strong candidate afterglow. We identify the temporally and spatially coincident Fermi-GBM trigger bn230916144 / 716527670, initially classified as a GRB with 64% probability at position (J2000) of RA, Dec = 00:26:52.8, +87:43:12. The localization error radius is 21.44 deg. The time of the GBM trigger was 2023-09-16 03:27:46 UT (MJD=60203.14428), 1.3 days prior to the first ZTF detection of AT 2023sva. If the Fermi-GBM trigger is indeed a GRB then we suggest this as the prompt counterpart to AT 2023sva. If the trigger is of another origin, then no identified prompt signal has been reported thus far.\n\nWe encourage spectroscopic follow-up observations.\n\nZTF is supported by the National Science Foundation under Grant No. AST-2034437 and a collaboration including Caltech, IPAC, the Weizmann Institute for Science, the Oskar Klein Center at Stockholm University, the University of Maryland, Deutsches Elektronen-Synchrotron and Humboldt University, the TANGO Consortium of Taiwan, the University of Wisconsin at Milwaukee, Trinity College Dublin, Lawrence Livermore National Laboratories, and IN2P3, France. Operations are conducted by COO, IPAC, and UW.\n\nSED Machine is based upon work supported by the National Science Foundation under Grant No. 1106171.\n"
     },
+    {
+      "subject": "LIGO/Virgo/KAGRA S240630t: Updated Sky localization",
+      "eventId": "LIGO/Virgo/KAGRA S240630t",
+      "submittedHow": "web",
+      "createdOn": 1719767201026,
+      "circularId": 36796,
+      "submitter": "Christopher P L Berry at LVK Collaboration <christopher.berry@ligo.org>",
+      "format": "text/plain",
+      "body": "The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration report:\n\nWe have conducted further analysis of the LIGO Hanford Observatory (H1), LIGO Livingston Observatory (L1), and Virgo Observatory (V1) data around the time of the compact binary merger (CBC) candidate S240630t (GCN Circular 36794). Parameter estimation has been performed using Bilby [1] and a new sky map, Bilby.multiorder.fits,0, distributed via GCN Notice, is available for retrieval from the GraceDB event page:\n\nhttps://gracedb.ligo.org/superevents/S240630t\n\nFor the Bilby.multiorder.fits,0 sky map, the 90% credible region is 670 deg2. Marginalized over the whole sky, the a posteriori luminosity distance estimate is 3161 +/- 841 Mpc (a posteriori mean +/- standard deviation).\n\nFor further information about analysis methodology and the contents of this alert, refer to the LIGO/Virgo/KAGRA Public Alerts User Guide https://emfollow.docs.ligo.org/.\n\n [1] Ashton et al. ApJS 241, 27 (2019) doi:10.3847/1538-4365/ab06fc and Morisaki et al. (2023) arXiv:2307.13380"
+    },
     {
       "subject": "GRB230911C: LCOGT Optical Upper Limits",
       "submittedHow": "email",