function main() {
	let dsArr =pe.DatasetArray('terra/modis', 
		20230101030000, 
		20230101035000,
		[0] );
	let dataArr = dsArr.dataArr;
	let timeArr = dsArr.timeArr;
	let ds = dsArr.forEachPixel(function(vals,it,numds){
		let sum=vals[1]  ;
		//sum = sum/2;
		return sum*255;
	});
	return ds;
}