1   /* Copyright 2022-2025 Luc Maisonobe
2    * Licensed to CS GROUP (CS) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * CS licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *   http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.orekit.files.rinex.navigation;
18  
19  import org.orekit.gnss.SatelliteSystem;
20  import org.orekit.propagation.analytical.gnss.data.GNSSConstants;
21  import org.orekit.time.AbsoluteDate;
22  import org.orekit.utils.units.Unit;
23  
24  /** Base container for data contained in a ionosphere message.
25   * @author Luc Maisonobe
26   * @since 12.0
27   */
28  public class IonosphereBaseMessage extends TypeSvMessage {
29  
30      /** Converter for Klobuchar parameters. */
31      public static final Unit SC = Unit.RADIAN.scale("sc", GNSSConstants.GNSS_PI);
32  
33      /** Converter for Klobuchar parameters. */
34      public static final Unit S_PER_SC_N0 = Unit.SECOND;
35  
36      /** Converter for Klobuchar parameters. */
37      public static final Unit S_PER_SC_N1 = S_PER_SC_N0.divide("s/sc",  SC);
38  
39      /** Converter for Klobuchar parameters. */
40      public static final Unit S_PER_SC_N2 = S_PER_SC_N1.divide("s/sc²", SC);
41  
42      /** Converter for Klobuchar parameters. */
43      public static final Unit S_PER_SC_N3 = S_PER_SC_N2.divide("s/sc³", SC);
44  
45      /** Transmit time. */
46      private AbsoluteDate transmitTime;
47  
48      /** Simple constructor.
49       * @param system satellite system
50       * @param prn satellite number
51       * @param type navigation message type
52       * @param subType navigation message subtype
53       */
54      public IonosphereBaseMessage(final SatelliteSystem system, final int prn,
55                                   final String type, final String subType) {
56          super(system, prn, type, subType);
57      }
58  
59      /** {@inheritDoc} */
60      @Override
61      public AbsoluteDate getDate() {
62          return transmitTime;
63      }
64  
65      /** Get the transmit time.
66       * @return the transmit time
67       */
68      public AbsoluteDate getTransmitTime() {
69          return transmitTime;
70      }
71  
72      /** Set the transmit time.
73       * @param transmitTime the transmit time to set
74       */
75      public void setTransmitTime(final AbsoluteDate transmitTime) {
76          this.transmitTime = transmitTime;
77      }
78  
79  }