SkyMapper DR4 Image Access By downloading SkyMapper data you agree to observe the policies published at http://skymapper.anu.edu.au/policies/ Image name MIME-type of the requested image SkyMapper filter (u,v,g,r,i,z) Image download URL Download PNG preview Download FITS Download FITS bitmask ICRS Right Ascension of the image centre ICRS Declination of the image centre On-sky exposure time Modified Julian Date of exposure start Angular size of image Image size in pixels WCS pixel scale of each image axis Unique image identifier [image_id]-[ccd] Type of image Instrument name Number of image axes Coordinate system reference frame Tangent plane projection with a polynomial distortion function described by coefficients provided in a set of PVi_j keywords. The first image axis represents Right Ascension and the second represents Declination

SkyMapper_i_20200731195531-04_31.216+11.857_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200731195531-04&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200731195531-04&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200731195531-04&format=fits&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200731195531-04&format=mask&pos=31.2159917589,11.8566439364&size=0.03,0.03	31.21597	11.85667	100.0	59061.83023	108 108	219 219	0.4973 0.4965	20200731195531-04	main
SkyMapper_g_20200825181532-08_31.216+11.857_108x108	image/png	g	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200825181532-08&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200825181532-08&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200825181532-08&format=fits&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200825181532-08&format=mask&pos=31.2159917589,11.8566439364&size=0.03,0.03	31.21598	11.85666	5.0	59086.76081	108 108	219 219	0.4969 0.4963	20200825181532-08	short
SkyMapper_i_20200825181622-08_31.216+11.857_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200825181622-08&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200825181622-08&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200825181622-08&format=fits&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200825181622-08&format=mask&pos=31.2159917589,11.8566439364&size=0.03,0.03	31.21607	11.85658	10.0	59086.76138	108 108	219 219	0.4969 0.4963	20200825181622-08	short
SkyMapper_z_20200825181652-08_31.216+11.857_108x108	image/png	z	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200825181652-08&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200825181652-08&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200825181652-08&format=fits&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200825181652-08&format=mask&pos=31.2159917589,11.8566439364&size=0.03,0.03	31.21595	11.85657	20.0	59086.76172	108 108	219 219	0.4969 0.4963	20200825181652-08	short
SkyMapper_u_20201201115012-23_31.216+11.857_108x108	image/png	u	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115012-23&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115012-23&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115012-23&format=fits&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115012-23&format=mask&pos=31.2159917589,11.8566439364&size=0.03,0.03	31.21597	11.85657	40.0	59184.49324	108 108	219 219	0.4966 0.4972	20201201115012-23	short
SkyMapper_v_20201201115114-23_31.216+11.857_108x108	image/png	v	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115114-23&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115114-23&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115114-23&format=fits&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115114-23&format=mask&pos=31.2159917589,11.8566439364&size=0.03,0.03	31.21605	11.85658	20.0	59184.49394	108 108	219 219	0.4967 0.4972	20201201115114-23	short
SkyMapper_g_20201201115156-23_31.216+11.857_108x108	image/png	g	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115156-23&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115156-23&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115156-23&format=fits&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115156-23&format=mask&pos=31.2159917589,11.8566439364&size=0.03,0.03	31.21603	11.85669	5.0	59184.49443	108 108	219 219	0.4967 0.4974	20201201115156-23	short
SkyMapper_r_20201201115222-23_31.216+11.857_108x108	image/png	r	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115222-23&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115222-23&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115222-23&format=fits&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115222-23&format=mask&pos=31.2159917589,11.8566439364&size=0.03,0.03	31.21604	11.85658	5.0	59184.49473	108 108	219 219	0.4967 0.4973	20201201115222-23	short
SkyMapper_i_20201201115249-23_31.216+11.857_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115249-23&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115249-23&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115249-23&format=fits&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115249-23&format=mask&pos=31.2159917589,11.8566439364&size=0.03,0.03	31.21601	11.85657	10.0	59184.49504	108 108	219 219	0.4968 0.4974	20201201115249-23	short
SkyMapper_z_20201201115320-23_31.216+11.857_108x108	image/png	z	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115320-23&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115320-23&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115320-23&format=fits&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20201201115320-23&format=mask&pos=31.2159917589,11.8566439364&size=0.03,0.03	31.21601	11.85660	20.0	59184.49540	108 108	219 219	0.4967 0.4973	20201201115320-23	short
SkyMapper_i_20210911171402-08_31.216+11.857_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20210911171402-08&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20210911171402-08&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20210911171402-08&format=fits&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20210911171402-08&format=mask&pos=31.2159917589,11.8566439364&size=0.03,0.03	31.21598	11.85667	100.0	59468.71809	108 108	219 219	0.4970 0.4964	20210911171402-08	main
SkyMapper_i_20210911171604-04_31.216+11.857_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20210911171604-04&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20210911171604-04&format=png&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20210911171604-04&format=fits&pos=31.2159917589,11.8566439364&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20210911171604-04&format=mask&pos=31.2159917589,11.8566439364&size=0.03,0.03	31.21594	11.85667	100.0	59468.71950	108 108	219 219	0.4973 0.4965	20210911171604-04	main