supernova in M101 any pre discovery images ?

[robin_astro]

ZTF report a 10 hours pre-discovery detection at mag 15.9 (g) 2023-05-19 07:45:07 and a negative (fainter than 21.3) 2023-5-16 19:35:38.00
https://www.wis-tns.org/astronotes/astronote/2023-120

so any deep images taken between those dates could be of interest

Here is a link to the discovery image

Cheers

Robin

Edited May 20, 2023 by robin_astro
added discovery image link

[ONIKKINEN]

I captured data on M101 in April 10th, so well before.

One of those blobs maybe?

[robin_astro]

1 hour ago, ONIKKINEN said:

One of those blobs maybe?

Looking at Nick James' image on the BAA forum I would say it is located in the blank space in the middle of  that horseshoe of stars

https://britastro.org/forums/topic/supernova-in-m101#post-617411

 

Cheers

Robin

[robin_astro]

On TNS currently   

latest non detection  2023-05-18 10:17:15 (UTC)  (ATLAS)

earliest detection      2023-05-19 03:41:35 (UTC)  (Stephen Limeburner)

https://www.wis-tns.org/object/2023ixf

The gap is closing ! Can anyone narrow the time of explosion down further ?

Robin