Station name: alta Lat(dms): 42 12 32.5887 Long(dms): -121 44 50.2214 Height (m): 1227.0880 Mean Observation Time: 1999.4884 Position (XYZ m): -2490031.8062 -4024272.9093 4263656.0970 Reference Frame Information: Note: Final Station velocities are in a North America fixed reference frame derived from ITRF97 (NuvelNNR1A) by: 1) Finding the pole that best fits ITRF97 velocities for ALGO,BRMU,CHUR,DRAO,GODE,KELY,MDO1,NLIB,RCM5,STJO,THU1,WES2,YELL (-2.2012+/-0.9, -79.9603+/-0.4, 0.19676+/-0.0030) 2) Subtracting the predicted motions of 51 itrf Stations about that pole from itrf97. 3) Transforming (7 parameter Helmert) each observed solution into the reference frame defined above. To convert velocities given below back to itrf97 (NuvelNNR1A) add (mm/a): N: -14.57 X: -14.94 E: -11.53 Y: -2.22 U: -0.05 Z: -10.82 Segment: 0 No-of-obs-used: 6 Vel(mm/a) Vel-sig(mm/a) RMS(mm) StdDevObsUnitWt Vel-XYZ(mm/a): N: 4.0 0.8 1.82 0.34 -2.5 E: -3.8 1.1 2.89 0.43 3.2 U: 1.7 2.6 37.46 2.08 4.1 N-E Correlation: -0.1859