Observations

The LSSTComCam obtained observations of 7 fields between Oct 24 and Dec 11 2024.

Field centers

Figure 1: The seven LSSTComCam fields (yellow dots, as named) in the context of the LSST’s planned regions: North Ecliptic Spur (NES), South Celestial Pole (SCP), the dusty plane, and the Galactic Plane and Magellanic Clouds (GP/MC) and low-dust regions of the Wide-Fast-Deep (WFD) region.

Table 1: Field names and central coordinates.

Field name	RA, Dec	RA, Dec (deg)
47 Tuc Globular Cluster	00h24m05s -72d04m48s	6.02, -72.08
Low Ecliptic Latitude Field	02h31m26s +06d58m48s	37.86, 6.98
Fornax Dwarf Spheroidal Galaxy	02h40m00s -34d27m00s	40.00, -34.45
Extended Chandra Deep Field South (ECDFS)	03h32m31s -28d06m00s	53.13, -28.10
Euclid Deep Field South (EDFS)	03h56m24s -48d43m48s	59.10, -48.73
Low Galactic Latitude Field	06h20m00s -25d00m00s	95.00, -25.00
Seagull Nebula	07h04m55s -10d30m36s	106.23, -10.51

Filters

Table 2: Number of visits per band per field.

Field name	u	g	r	i	z	y	Total
47 Tuc Globular Cluster	0	10	32	19	0	5	66
Low Ecliptic Latitude Field	0	44	40	55	20	0	159
Fornax Dwarf Spheroidal Galaxy	0	5	25	12	0	0	42
Extended Chandra Deep Field South (ECDFS)	43	230	237	162	153	30	855
Euclid Deep Field South (EDFS)	20	61	87	42	42	20	272
Low Galactic Latitude Field	33	82	84	23	60	10	292
Seagull Nebula	10	37	43	0	10	0	100

Epochs (nights)

Table 3: Number of nights, mean visits per night.

Field name	Epochs (nights)	Visits/epoch
47 Tuc Globular Cluster	4	16.5
Low Ecliptic Latitude Field	5	31.8
Fornax Dwarf Spheroidal Galaxy	2	21.0
Extended Chandra Deep Field South (ECDFS)	21	40.7
Euclid Deep Field South (EDFS)	9	30.2
Low Galactic Latitude Field	10	29.2
Seagull Nebula	4	25.0