***ITRF2020***
                NESI NDOT SIDNEY (NESI),  NEBRASKA

 Retrieved from NGS DataBase on 01/27/26 at 15:41:31.
 _____________________________________________________________________________ 
|                                                                             |
|         Antenna Reference Point(ARP): NESI NDOT SIDNEY CORS ARP             |
|         -------------------------------------------------------             |
|                             PID = DS4100                                    |
|                                                                             |
|                                                                             |
| ITRF2020 POSITION (EPOCH 2020.0)                                            |
| Computed in Jan 2026 using 124 days of data.                                |
|     X =  -1083351.905 m     latitude    =  41 06 46.27554 N                 |
|     Y =  -4689838.037 m     longitude   = 103 00 25.78254 W                 |
|     Z =   4172728.923 m     ellipsoid height = 1300.330   m                 |
|                                                                             |
| ITRF2020 VELOCITY                                                           |
| Predicted with HTDP_3.6.0 Jan 2026.                                         |
|     VX =  -0.0151 m/yr      northward =  -0.0054 m/yr                       |
|     VY =   0.0001 m/yr      eastward  =  -0.0147 m/yr                       |
|     VZ =  -0.0043 m/yr      upward    =  -0.0003 m/yr                       |
|                                                                             |
|                                                                             |
| NAD_83 (2011) POSITION (EPOCH 2010.0)                                       |
| Transformed from ITRF2020 (epoch 2020.0) position in Jan 2026.              |
|     X =  -1083350.990 m     latitude    =  41 06 46.25545 N                 |
|     Y =  -4689839.349 m     longitude   = 103 00 25.73170 W                 |
|     Z =   4172729.036 m     ellipsoid height = 1301.211   m                 |
|                                                                             |
| NAD_83 (2011) VELOCITY                                                      |
| Transformed from ITRF2020 velocity in Jan 2026.                             |
|     VX =   0.0023 m/yr      northward =   0.0006 m/yr                       |
|     VY =   0.0008 m/yr      eastward  =   0.0021 m/yr                       |
|     VZ =  -0.0003 m/yr      upward    =  -0.0012 m/yr                       |
|_____________________________________________________________________________|
|                                                                             |
| L1 Phase Center of the current GPS antenna: NESI NDOT SIDNEY CORS L1PC      |
| -------------------------------------------------------------------------   |
| The Zephyr 3 base; switchable MSS filter in antenna                         |
| (Antenna Code = TRM115000.10    NONE) was installed on 29Jan2020.           |
|        The L2 phase center is 0.008 m below the L1 phase center.            |
|                             PID = DS4101                                    |
|                                                                             |
|                                                                             |
| ITRF2020 POSITION (EPOCH 2020.0)                                            |
| Computed in Jan 2026 using 124 days of data.                                |
|     X =  -1083351.916 m     latitude    =  41 06 46.27556 N                 |
|     Y =  -4689838.086 m     longitude   = 103 00 25.78254 W                 |
|     Z =   4172728.967 m     ellipsoid height = 1300.396   m                 |
|                                                                             |
| The ITRF2020 VELOCITY of the L1 PC is the same as that for the ARP.         |
|                                                                             |
|                                                                             |
| NAD_83 (2011) POSITION (EPOCH 2010.0)                                       |
| Transformed from ITRF2020 (epoch 2020.0) position in Jan 2026.              |
|     X =  -1083351.001 m     latitude    =  41 06 46.25548 N                 |
|     Y =  -4689839.397 m     longitude   = 103 00 25.73170 W                 |
|     Z =   4172729.080 m     ellipsoid height = 1301.277   m                 |
|                                                                             |
| The NAD_83 (2011) VELOCITY of the L1 PC is the same as that for the ARP.    |
|_____________________________________________________________________________|
|                                                                             |
|         Monument: NESI NDOT SIDNEY GRP CORS                                 |
|         -----------------------------------                                 |
|                             PID = DS4102                                    |
|         Inscribed: UNKNOWN                                                  |
|                                                                             |
|                                                                             |
| ITRF2020 POSITION (EPOCH 2020.0)                                            |
| Computed in Jan 2026 using 124 days of data.                                |
|     X =  -1083351.899 m     latitude    =  41 06 46.27554 N                 |
|     Y =  -4689838.012 m     longitude   = 103 00 25.78254 W                 |
|     Z =   4172728.900 m     ellipsoid height = 1300.295   m                 |
|                                                                             |
| The ITRF2020 VELOCITY of the monument is the same as that for the ARP.      |
|                                                                             |
|                                                                             |
| NAD_83 (2011) POSITION (EPOCH 2010.0)                                       |
| Transformed from ITRF2020 (epoch 2020.0) position in Jan 2026.              |
|     X =  -1083350.984 m     latitude    =  41 06 46.25545 N                 |
|     Y =  -4689839.323 m     longitude   = 103 00 25.73170 W                 |
|     Z =   4172729.013 m     ellipsoid height = 1301.176   m                 |
|                                                                             |
| The NAD_83 (2011) VELOCITY of the monument is the same as that for the ARP. |
|_____________________________________________________________________________|


 * Latitude, longitude and ellipsoid height are computed from their
   corresponding cartesian coordinates using dimensions for the
   GRS 80 ellipsoid: semi-major axis = 6,378,137.0 meters
                          flattening = 1/298.257222101...


 * WARNING: Mixing of antenna types can lead to errors of up to 10 cm.
   in height unless antenna-phase-center variation and antenna-phase-center
   offset are properly modeled.  See next comment.

 * The coordinates shown on this page were computed using absolute antenna
   calibrations.  CORS coordinates began using absolute antenna calibrations
   beginning with IGS08 and NAD 83 (2011, MA11, PA11).  For additional
   information on the derivation of these positions and velocities and
   antenna calibrations consult:
   https://geodesy.noaa.gov/CORS/index.shtml
   https://geodesy.noaa.gov/ANTCAL/


 * For more site specific information on the equipment history and
   monumentation type consult:
   https://geodesy.noaa.gov/corsdata/station_log/nesi.log.txt
   https://geodesy.noaa.gov/CORS/ncn_station_pages/index.html?stationID=nesi