# Copyright (C) 2015-2021 Swift Navigation Inc.
# Contact: https://support.swiftnav.com
#
# This source is subject to the license found in the file 'LICENSE' which must
# be distributed together with this source. All other rights reserved.
#
# THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
# EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.

package: swiftnav.sbp.observation
description: Satellite observation messages from the device.
             The SBP sender ID of 0 indicates remote observations
             from a GNSS base station, correction network, or Skylark,
             Swift's cloud GNSS correction product.
stable: True
public: True
include:
  - types.yaml
  - gnss.yaml
definitions:

 - MSG_EPHEMERIS_GPS_DEP_E:
    id: 0x0081
    short_desc: Satellite broadcast ephemeris for GPS
    replaced_by:
      - MSG_EPHEMERIS
    desc: >
      The ephemeris message returns a set of satellite orbit
      parameters that is used to calculate GPS satellite position,
      velocity, and clock offset. Please see the Navstar GPS
      Space Segment/Navigation user interfaces (ICD-GPS-200, Table
      20-III) for more details.
    fields:
      - uncommon: # MSGBREAK
          type: EphemerisCommonContentDepA
          desc: Values common for all ephemeris types
      - tgd:
          type: double
          units: s
          desc: Group delay differential between L1 and L2
      - c_rs:
          type: double
          units: m
          desc: Amplitude of the sine harmonic correction term to the orbit radius
      - c_rc:
          type: double
          units: m
          desc: Amplitude of the cosine harmonic correction term to the orbit radius
      - c_uc:
          type: double
          units: rad
          desc: Amplitude of the cosine harmonic correction term to the argument of latitude
      - c_us:
          type: double
          units: rad
          desc: Amplitude of the sine harmonic correction term to the argument of latitude
      - c_ic:
          type: double
          units: rad
          desc: Amplitude of the cosine harmonic correction term to the angle of inclination
      - c_is:
          type: double
          units: rad
          desc: Amplitude of the sine harmonic correction term to the angle of inclination
      - dn:
          type: double
          units: rad/s
          desc: Mean motion difference
      - m0:
          type: double
          units: rad
          desc: Mean anomaly at reference time
      - ecc:
          type: double
          desc: Eccentricity of satellite orbit
      - sqrta:
          type: double
          units: m^(1/2)
          desc: Square root of the semi-major axis of orbit
      - omega0:
          type: double
          units: rad
          desc: Longitude of ascending node of orbit plane at weekly epoch
      - omegadot:
          type: double
          units: rad/s
          desc: Rate of right ascension
      - w:
          type: double
          units: rad
          desc: Argument of perigee
      - inc:
          type: double
          units: rad
          desc: Inclination
      - inc_dot:
          type: double
          units: rad/s
          desc: Inclination first derivative
      - af0:
          type: double
          units: s
          desc: Polynomial clock correction coefficient (clock bias)
      - af1:
          type: double
          units: s/s
          desc: Polynomial clock correction coefficient (clock drift)
      - af2:
          type: double
          units: s/s^2
          desc: Polynomial clock correction coefficient (rate of clock drift)
      - toc:
          type: GPSTimeDep
          desc: Clock reference
      - iode:
          type: u8
          desc: Issue of ephemeris data
      - iodc:
          type: u16
          desc: Issue of clock data