1   /* Copyright 2002-2025 CS GROUP
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.estimation.measurements.gnss;
18  
19  import java.util.Collections;
20  import java.util.List;
21  
22  import org.orekit.gnss.SatelliteSystem;
23  import org.orekit.time.AbsoluteDate;
24  import org.orekit.time.TimeStamped;
25  
26  /**
27   * Combined observation data set.
28   * @author Bryan Cazabonne
29   * @since 10.1
30   */
31  public class CombinedObservationDataSet implements TimeStamped {
32  
33      /** Satellite System. */
34      private final SatelliteSystem satelliteSystem;
35  
36      /** PRN Number of the satellite observed. */
37      private final int prnNumber;
38  
39      /** Date of the observation. */
40      private final AbsoluteDate tObs;
41  
42      /** List of Observation data. */
43      private final List<CombinedObservationData> observationData;
44  
45      /** Receiver clock offset (seconds). */
46      private final double rcvrClkOffset;
47  
48      /**
49       * Simple constructor.
50       * @param satelliteSystem Satellite system
51       * @param prnNumber PRN number
52       * @param tObs Observation date
53       * @param rcvrClkOffset Receiver clock offset (optional, 0 by default)
54       * @param observationData List of combined observation data
55       */
56      public CombinedObservationDataSet(final SatelliteSystem satelliteSystem,
57                                        final int prnNumber, final AbsoluteDate tObs,
58                                        final double rcvrClkOffset, final List<CombinedObservationData> observationData) {
59          this.satelliteSystem = satelliteSystem;
60          this.prnNumber       = prnNumber;
61          this.tObs            = tObs;
62          this.observationData = observationData;
63          this.rcvrClkOffset   = rcvrClkOffset;
64      }
65  
66      /** Get Satellite System.
67       * @return satellite system of observed satellite
68       */
69      public SatelliteSystem getSatelliteSystem() {
70          return satelliteSystem;
71      }
72  
73      /** Get PRN number.
74       * @return PRN number of the observed satellite
75       */
76      public int getPrnNumber() {
77          return prnNumber;
78      }
79  
80      /** {@inheritDoc} */
81      @Override
82      public AbsoluteDate getDate() {
83          return tObs;
84      }
85  
86      /** Get list of observation data.
87       * @return unmodifiable view of of observation data for the observed satellite
88       */
89      public List<CombinedObservationData> getObservationData() {
90          return Collections.unmodifiableList(observationData);
91      }
92  
93      /** Get receiver clock offset.
94       * @return receiver clock offset (it is optional, may be 0)
95       */
96      public double getRcvrClkOffset() {
97          return rcvrClkOffset;
98      }
99  
100 }