DW5S/DW5S.Entity/XlInfo.cs

using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DW5S.Entity
{
    /// <summary>
    /// 星历信息表
    /// </summary>
    [Index(nameof(SatName), nameof(TimeUTC), nameof(Lon), IsDescending = new[] { false, true, false })]
    public class XlInfo : BaseEntity<int>
    {
        /// <summary>
        /// 卫星编号
        /// </summary>
        public int SatCode { get; set; }

        /// <summary>
        /// 卫星名称
        /// </summary>
        public string SatName { get; set; }

        /// <summary>
        /// 卫星
        /// </summary>
        public string Sat => $"{SatName}({SatCode})";

        /// <summary>
        /// 发布时间(UTC)
        /// </summary>
        public DateTime TimeUTC { get; set; }

        /// <summary>
        /// 轨道经度
        /// </summary>
        public double? Lon { get; set; }

        /// <summary>
        /// 双行根数1
        /// </summary>
        public string Line1 { get; set; }

        /// <summary>
        /// 双行根数2
        /// </summary>
        public string Line2 { get; set; }

        /// <summary>
        /// 双行根数
        /// </summary>
        public string TwoLine => $"{Line1};{Line2}";

    }
}