void formBats(pulsar *psr,int npsr)
{
int i,p;
// double etatdm;
double shapiroDelay;
const char *CVS_verNum = "$Revision: 1.8 $";
if (displayCVSversion == 1) CVSdisplayVersion("formBats.C","formBats()",CVS_verNum);
logdbg("In formBats");
for (p=0;p<npsr;p++)
{
for (i=0;i<psr[p].nobs;i++)
{
// if (psr[p].obsn[i].clockCorr==0 || psr[p].obsn[i].delayCorr==0)
if (psr[p].obsn[i].delayCorr==0)
psr[p].obsn[i].bat = psr[p].obsn[i].sat;
else
{
/* ORIGINAL TEMPO calculation */
if (psr[p].calcShapiro==-1)
shapiroDelay = 0.0;
else
shapiroDelay = psr[p].obsn[i].shapiroDelaySun + psr[p].planetShapiro*
(psr[p].obsn[i].shapiroDelayVenus+
psr[p].obsn[i].shapiroDelayJupiter+psr[p].obsn[i].shapiroDelaySaturn
+psr[p].obsn[i].shapiroDelayUranus + psr[p].obsn[i].shapiroDelayNeptune);
//if(i==0){printf("Forming bat with sat = %.15g TT = %.15g TT_TB = %.15g trop = %.15g roemer = %.15g shap = %.15g tdis1 = %.15g tdis2 = %.15g\n",(double)psr[p].obsn[i].sat,(double)getCorrectionTT(psr[p].obsn+i),(double)psr[p].obsn[i].correctionTT_TB,(double)psr[p].obsn[i].troposphericDelay,(double)psr[p].obsn[i].roemer,(double)shapiroDelay,(double)psr[p].obsn[i].tdis1,(double)psr[p].obsn[i].tdis2);}
long double batcorr=getCorrectionTT(psr[p].obsn+i)/SECDAY
+ (psr[p].obsn[i].correctionTT_TB
-psr[p].obsn[i].troposphericDelay
+psr[p].obsn[i].roemer -
shapiroDelay - psr[p].obsn[i].tdis1 - psr[p].obsn[i].tdis2)/SECDAY;
psr[p].obsn[i].batCorr = batcorr;
psr[p].obsn[i].bat = psr[p].obsn[i].sat +
getCorrectionTT(psr[p].obsn+i)/SECDAY
+ (psr[p].obsn[i].correctionTT_TB
-psr[p].obsn[i].troposphericDelay
+psr[p].obsn[i].roemer -
shapiroDelay - psr[p].obsn[i].tdis1 - psr[p].obsn[i].tdis2)/SECDAY;
/* Now calculate binary barycentric arrival time (bbat) */
psr[p].obsn[i].bbat = psr[p].obsn[i].bat - (psr[p].obsn[i].shklovskii)/SECDAY;
}
}
}
logdbg("Leaving formBats");
}
/* ******************************************** */
void displayParameters(int pos,char timFile[][MAX_FILELEN],char parFile[][MAX_FILELEN],pulsar *psr,int npsr)
{
int i, ic, p;
const char *CVS_verNum = "$Revision: 1.5 $";
if (displayCVSversion == 1) CVSdisplayVersion("displayParameters.C","displayParameters()",CVS_verNum);
printf("\n\n");
if (pos==1) printf("Parameter values after getInputs from command line\n");
if (pos==2) printf("Parameter values after reading of .par file\n");
if (pos==3) printf("Parameter values after reading of .tim file\n");
if (pos==4) printf("After obtaining correction between observatory UTC and UTC(NIST)\n");
if (pos==5) printf("After calculating correction between UTC and TAI\n");
if (pos==6) printf("After calculating correction between TAI and TB\n");
if (pos==7) printf("After calculating vector pointing at pulsar\n");
printf("\n\n");
printf("lobal definitions:\n\n");
printf("MAX_FREQ_DERIVATIVES = %d\n",MAX_FREQ_DERIVATIVES);
printf("MAX_DM_DERIVATIVES = %d\n",MAX_DM_DERIVATIVES);
printf("MAX_FILELEN = %d\n",MAX_FILELEN);
printf("\n\n");
for (p=0;p<npsr;p++)
{
printf("Command line inputs:\n\n");
printf("Pulse arrival time file[0] = %s\n",timFile[0]);
printf("Pulsar parameter file[0] = %s\n",parFile[0]);
printf("\n\n");
printf("Pulsar Parameters:\n\n");
printf("Pulsar name = %s\n",psr[p].name);
if (pos>2) /* Have .tim file data */
{
printf("\n\nObservations:\n\n");
printf("Number of observations = %d\n",psr[p].nobs);
printf("--------------------------------------------------------------------------------\n");
printf(" # | SAT | Clock corrections(s) |\n");
printf("--------------------------------------------------------------------------------\n");
for (i=0;i<psr[p].nobs;i++)
{
printf("|%4d | %s |", i+1, print_longdouble(psr[p].obsn[i].sat).c_str());
for (ic=0; ic < psr[p].obsn[i].nclock_correction; ic++)
printf(" %-14.7g(->%s)",
(double)psr[p].obsn[i].correctionsTT[ic].correction,
psr[p].obsn[i].correctionsTT[ic].corrects_to);
printf("\n");
}
printf("--------------------------------------------------------------------------------\n");
printf(" # TAI->TB | SAT->UT1 |\n");
printf("--------------------------------------------------------------------------------\n");
for (i=0;i<psr[p].nobs;i++)
printf("|%4d | %-10.9g | %-16.9e |\n",
i+1,
(double)psr[p].obsn[i].correctionTT_TB,
(double)psr[p].obsn[i].correctionUT1);
printf("--------------------------------------------------------------------------------\n");
}
if (pos>6) /* Ephemeris information */
{
printf("\n\nEphemeris information:\n\n");
printf("3-vector pointing at pulsar = (%-13.13f,%-13.13f,%13.13f)\n",
psr[p].posPulsar[0],psr[p].posPulsar[1],psr[p].posPulsar[2]);
printf("3-vector giving pulsar's velocity = (%-13.8e,%13.8e,%13.8e)\n",
psr[p].velPulsar[0],psr[p].velPulsar[1],psr[p].velPulsar[2]);
}
if (pos>7)
{
printf("\n\n");
printf("--------------------------------------------------------------------------------------------------------------\n");
printf(" JD RCS(1) RCS(2) RCS(3) RCB(1) RCB(2) RCB(3) RBE(1) RBE(2) RBE(3)\n");
printf("--------------------------------------------------------------------------------------------------------------\n");
for (i=0;i<psr[p].nobs;i++)
{
printf("%-.5f %10.5f %-10.5f %-10.5f %-10.5f %-10.5f %-10.5f %-10.5f %-10.5f %-10.5f\n",
(double)(psr[p].obsn[i].sat + getCorrectionTT(psr[p].obsn+i)/SECDAY +
psr[p].obsn[i].correctionTT_TB/SECDAY
+ 2400000.5),
(double)psr[p].obsn[i].sun_ssb[0],
(double)psr[p].obsn[i].sun_ssb[1],
(double)psr[p].obsn[i].sun_ssb[2],
(double)psr[p].obsn[i].earthMoonBary_ssb[0],
(double)psr[p].obsn[i].earthMoonBary_ssb[1],
(double)psr[p].obsn[i].earthMoonBary_ssb[2],
(double)psr[p].obsn[i].earthMoonBary_earth[0],
(double)psr[p].obsn[i].earthMoonBary_earth[1],
(double)psr[p].obsn[i].earthMoonBary_earth[2]);
}
printf("--------------------------------------------------------------------------------------------------------------\n");
printf("\n\n");
printf("--------------------------------------------------------------------------------------------------------------\n");
printf(" JD RCS(4) RCS(5) RCS(6) RCB(4) RCB(5) RCB(6) RBE(4) RBE(5) RBE(6)\n");
printf("--------------------------------------------------------------------------------------------------------------\n");
for (i=0;i<psr[p].nobs;i++)
{
printf("%-.5lf %10.3e %-10.3e %-10.3e %-10.3e %-10.3e %-10.3e %-10.3e %-10.3e %-10.3e\n",
(double)(psr[p].obsn[i].sat +
getCorrectionTT(psr[p].obsn+i)/SECDAY +
psr[p].obsn[i].correctionTT_TB/SECDAY
+ 2400000.5),
(double)psr[p].obsn[i].sun_ssb[3],
(double)psr[p].obsn[i].sun_ssb[4],
(double)psr[p].obsn[i].sun_ssb[5],
(double)psr[p].obsn[i].earthMoonBary_ssb[3],
(double)psr[p].obsn[i].earthMoonBary_ssb[4],
(double)psr[p].obsn[i].earthMoonBary_ssb[5],
(double)psr[p].obsn[i].earthMoonBary_earth[3],
(double)psr[p].obsn[i].earthMoonBary_earth[4],
(double)psr[p].obsn[i].earthMoonBary_earth[5]);
}
printf("--------------------------------------------------------------------------------------------------------------\n");
printf("MJD OBS->EARTH1 OBS->EARTH2 OBS->EARTH3 SITEVEL1 SITEVEL2 SITEVEL3\n");
printf("--------------------------------------------------------------------------------------------------------------\n");
for (i=0;i<psr[p].nobs;i++)
{
printf("%-.5lf %12.5e %-12.5e %-12.5e %-12.5e %-12.5e %-12.5e\n",
(double)psr[p].obsn[i].sat +
getCorrectionTT(psr[p].obsn+i)/SECDAY,
psr[p].obsn[i].observatory_earth[0],psr[p].obsn[i].observatory_earth[1],
psr[p].obsn[i].observatory_earth[2],
psr[p].obsn[i].siteVel[0],psr[p].obsn[i].siteVel[1],psr[p].obsn[i].siteVel[2]);
}
printf("--------------------------------------------------------------------------------------------------------------\n");
}
if (pos>9) /* Extra Delays */
{
printf("\n\nExtra Delays:\n\n");
printf("--------------------------------------------------------------------------------------------------------------\n");
printf("MJD ShapiroSun TDIS Roemer BAT\n");
printf("--------------------------------------------------------------------------------------------------------------\n");
for (i=0;i<psr[p].nobs;i++)
{
printf("%s %.12e %.12e %.10Lf %.10f\n",print_longdouble(psr[p].obsn[i].sat).c_str(),psr[p].obsn[i].shapiroDelaySun,
psr[p].obsn[i].tdis1+psr[p].obsn[i].tdis2,psr[p].obsn[i].roemer,(double)psr[p].obsn[i].bat);
}
printf("--------------------------------------------------------------------------------------------------------------\n");
}
}
}
void tt2tb(pulsar *psr,int npsr)
{
int i, p,k;
longdouble mjd_tt, mjd_teph;
double deltaT=0.0, obsTerm, earthVel[3];
double deltaTDot, obsTermDot, earthVelDot[3];
int first=1;
const char *CVS_verNum = "$Revision: 1.11 $";
if (displayCVSversion == 1) CVSdisplayVersion("tt2tdb.C","tt2tdb()",CVS_verNum);
init_ifte();
for (p=0;p<npsr;p++)
{
for (i=0;i<psr[p].nobs;i++)
{
if (psr[p].obsn[i].clockCorr==0 && strcmp(psr[p].obsn[i].telID,"STL")!=0)
psr[p].obsn[i].correctionTT_TB = 0.0;
else
{
if (strcmp(psr[p].obsn[i].telID,"STL")==0)
mjd_tt = psr[p].obsn[i].sat;
else
mjd_tt = psr[p].obsn[i].sat + getCorrectionTT(psr[p].obsn+i)/SECDAY;
/* Evaluate the time ephemeris and its derivative */
if (psr[p].timeEphemeris == IF99_TIMEEPH)
{
deltaT = IF_deltaT(mjd_tt);
}
if (psr[p].timeEphemeris == FB90_TIMEEPH)
{
deltaT = FB_deltaT(mjd_tt) - IFTE_TEPH0; /* FB code returns Teph-TDB not TT-TDB */
}
/* Get term involving observatory position (if known) */
/* for (k=0;k<3;k++)
varray[k] = -psr[p].obsn[i].earthMoonBary_earth[k+3];
vectorsum(earthVel,
psr[p].obsn[i].earthMoonBary_ssb+3,
varray); */
for (k=0;k<3;k++)
earthVel[k] = psr[p].obsn[i].earth_ssb[k+3];
obsTerm = dotproduct(earthVel, psr[p].obsn[i].observatory_earth)
/ (1.0-IFTE_LC) ;
/* both vectors were meant to be defined in Ephemeris units ...
This correction is neglible but worth doing so we can test with K=2*/
if (psr[p].units == SI_UNITS)
obsTerm /= (double)(IFTE_K*IFTE_K); // both were in SI
else
obsTerm /= (double)IFTE_K; // obs_earth was in SI
// printf("obsTerm = %g\n",(double)obsTerm);
/* Compute Teph : Irwin & Fukushima (1999) eq 13*/
/* Note, DeltaT(Teph0) ~ -2x10^-14 s so is neglected */
psr[p].obsn[i].correctionTT_Teph = IFTE_TEPH0 + obsTerm
+ deltaT / (1.0-IFTE_LC);
/* Compute TCB or TDB as requested */
if (psr[p].units == TDB_UNITS)
{
psr[p].obsn[i].correctionTT_TB =
psr[p].obsn[i].correctionTT_Teph - (1? 0.0 : IFTE_TEPH0);
}
else
{
psr[p].obsn[i].correctionTT_TB =
IFTE_KM1 * (double)(mjd_tt-IFTE_MJD0)*86400.0/* linear drift term */
+ IFTE_K * (psr[p].obsn[i].correctionTT_Teph-(longdouble)IFTE_TEPH0);
}
/* Compute dTB/dTT for correct frequency transfer if needed */
if (psr[p].dilateFreq==1)
{
if (first==1)
{
// init_ifte();
first=0;
}
mjd_teph = mjd_tt + psr[p].obsn[i].correctionTT_Teph/86400.0;
deltaTDot = IFTE_DeltaTDot(2400000.0+(int)mjd_teph,
0.5+(mjd_teph-(int)mjd_teph));
// XXX seems deltaTDot is coming out too big
IFTE_get_vEDot(2400000.0+(int)mjd_teph,
0.5+(mjd_teph-(int)mjd_teph), earthVelDot);
vectorscale(earthVelDot, 1.0/86400.0);
obsTermDot =
(dotproduct(earthVelDot, psr[p].obsn[i].observatory_earth)
+ dotproduct(earthVel, psr[p].obsn[i].siteVel))
/ (1.0-IFTE_LC) ;
if (psr[p].units == SI_UNITS)
obsTerm /= (double) (IFTE_K*IFTE_K); // both were in SI
else
obsTerm /= (double)IFTE_K; // obs_earth was in SI
if (psr[p].units == TDB_UNITS)
psr[p].obsn[i].einsteinRate =
1.0 + obsTermDot + deltaTDot/(1.0-IFTE_LC);
else
{
psr[p].obsn[i].einsteinRate =
IFTE_K * (1.0 + obsTermDot + deltaTDot/(1.0-IFTE_LC));
// obsTermDot =
// (dotproduct(earthVelDot, psr[p].obsn[i].observatory_earth)
// + dotproduct(earthVel, psr[p].obsn[i].siteVel))
// / (1.0-IFTE_LC) ;
}
// if (!first) printf("%g %g %g %g %g Einstein\n", (double)mjd_tt,
// deltaT, deltaTDot, obsTerm, obsTermDot);
// if (!first)
// printf("ER-1 %lg\n", psr[p].obsn[i].einsteinRate-1.0);
}
}
}
}
IFTE_close_file();
}
void get_obsCoord(pulsar *psr,int npsr)
{
double ph,eeq[3];
int i,j,k;
double prn[3][3];
double pc,oblq,toblq;
double siteCoord[3];
double erad,hlt,alng,hrd,tsid,sdd,speed,sitera;
int p;
observatory *obs;
const char *CVS_verNum = "$Revision: 1.8 $";
if (displayCVSversion == 1) CVSdisplayVersion("get_obsCoord.C","get_obsCoord()",CVS_verNum);
for (p=0;p<npsr;p++)
{
for (i=0;i<psr[p].nobs;i++)
{
if (psr[p].obsn[i].delayCorr!=0)
{
if (strcmp(psr[p].obsn[i].telID,"STL")==0 ||
strcmp(psr[p].obsn[i].telID,"STL_FBAT")==0) // Satellite
{
psr[p].obsn[i].siteVel[0] = 0.0;
psr[p].obsn[i].siteVel[1] = 0.0;
psr[p].obsn[i].siteVel[2] = 0.0;
// Set from the TELX, TELY, TELZ parameters
if (psr[p].param[param_telx].paramSet[0] == 1)
{
longdouble arg,deltaT,t0,pos;
if (psr[p].param[param_telEpoch].paramSet[0]==1)
t0 = psr[p].param[param_telEpoch].val[0];
else
t0 = 0.0L;
deltaT = (psr[p].obsn[i].sat - t0)*SECDAY;
arg = deltaT;
pos = psr[p].param[param_telx].val[0];
if (psr[p].param[param_telx].paramSet[1] == 1) {
pos += psr[p].param[param_telx].val[1]*arg;
if (psr[p].param[param_telEpoch].paramSet[0]==0)
{
printf("ERROR: Using telescope velocity without setting telEpoch\n");
exit(1);
}
}
arg *= deltaT; if (psr[p].param[param_telx].paramSet[2] == 1) pos += (0.5*psr[p].param[param_telx].val[2]*arg);
arg *= deltaT; if (psr[p].param[param_telx].paramSet[3] == 1) pos += (1.0L/6.0L*psr[p].param[param_telx].val[3]*arg);
psr[p].obsn[i].observatory_earth[0] = (double)pos;
printf("Setting x to %g\n",(double)psr[p].obsn[i].observatory_earth[0]);
}
if (psr[p].param[param_tely].paramSet[0] == 1)
{
longdouble arg,deltaT,t0,pos;
if (psr[p].param[param_telEpoch].paramSet[0]==1)
t0 = psr[p].param[param_telEpoch].val[0];
else
t0 = 0.0L;
deltaT = (psr[p].obsn[i].sat - t0)*SECDAY;
arg = deltaT;
pos = psr[p].param[param_tely].val[0];
if (psr[p].param[param_tely].paramSet[1] == 1) pos += psr[p].param[param_tely].val[1]*arg;
arg *= deltaT; if (psr[p].param[param_tely].paramSet[2] == 1) pos += (0.5*psr[p].param[param_tely].val[2]*arg);
arg *= deltaT; if (psr[p].param[param_tely].paramSet[3] == 1) pos += (1.0L/6.0L*psr[p].param[param_tely].val[3]*arg);
psr[p].obsn[i].observatory_earth[1] = (double)pos;
printf("Setting y to %g\n",(double)psr[p].obsn[i].observatory_earth[1]);
}
if (psr[p].param[param_telz].paramSet[0] == 1)
{
longdouble arg,deltaT,t0,pos;
if (psr[p].param[param_telEpoch].paramSet[0]==1)
t0 = psr[p].param[param_telEpoch].val[0];
else
t0 = 0.0L;
deltaT = (psr[p].obsn[i].sat - t0)*SECDAY;
arg = deltaT;
pos = psr[p].param[param_telz].val[0];
if (psr[p].param[param_telz].paramSet[1] == 1) pos += psr[p].param[param_telz].val[1]*arg;
arg *= deltaT; if (psr[p].param[param_telz].paramSet[2] == 1) pos += (0.5*psr[p].param[param_telz].val[2]*arg);
arg *= deltaT; if (psr[p].param[param_telz].paramSet[3] == 1) pos += (1.0L/6.0L*psr[p].param[param_telz].val[3]*arg);
psr[p].obsn[i].observatory_earth[2] = (double)pos;
printf("Setting z to %g\n",(double)psr[p].obsn[i].observatory_earth[2]);
}
// printf("Setting observatory coordinates for TOA %d\n",i);
// Now check flags to obtain the telescope coordinates for this time
for (k=0;k<psr[p].obsn[i].nFlags;k++)
{
//
// NOTE: For a STL_FBAT setting OBSERVATORY->BAT not OBSERVATORY->EARTH
// The terminology is misleading
//
if (strcmp(psr[p].obsn[i].flagID[k],"-telx")==0){
sscanf(psr[p].obsn[i].flagVal[k],"%lf",&psr[p].obsn[i].observatory_earth[0]);
if (strcmp(psr[p].obsn[i].telID,"STL")==0) psr[p].obsn[i].observatory_earth[0]/=SPEED_LIGHT;
}
if (strcmp(psr[p].obsn[i].flagID[k],"-tely")==0){
sscanf(psr[p].obsn[i].flagVal[k],"%lf",&psr[p].obsn[i].observatory_earth[1]);
if (strcmp(psr[p].obsn[i].telID,"STL")==0) psr[p].obsn[i].observatory_earth[1]/=SPEED_LIGHT;
}
if (strcmp(psr[p].obsn[i].flagID[k],"-telz")==0){
sscanf(psr[p].obsn[i].flagVal[k],"%lf",&psr[p].obsn[i].observatory_earth[2]);
if (strcmp(psr[p].obsn[i].telID,"STL")==0) psr[p].obsn[i].observatory_earth[2]/=SPEED_LIGHT;
}
}
}
else if (strcmp(psr[p].obsn[i].telID,"STL_BAT")==0) // Satellite in barycentric coordinates
{
psr[p].obsn[i].siteVel[0] = 0.0;
psr[p].obsn[i].siteVel[1] = 0.0;
psr[p].obsn[i].siteVel[2] = 0.0;
psr[p].obsn[i].observatory_earth[0] = 0.0;
psr[p].obsn[i].observatory_earth[1] = 0.0;
psr[p].obsn[i].observatory_earth[2] = 0.0;
psr[p].correctTroposphere = 0;
}
else
{
obs = getObservatory(psr[p].obsn[i].telID);
// Check for override:
if (strcmp(psr[p].obsn[i].telID,"IMAG")==0)
{
//
// Must check what is happening to other parameters - such as velocities
//
for (k=0;k<psr[p].obsn[i].nFlags;k++)
{
if (strcmp(psr[p].obsn[i].flagID[k],"-telx")==0){
sscanf(psr[p].obsn[i].flagVal[k],"%lf",&obs->x);
}
if (strcmp(psr[p].obsn[i].flagID[k],"-tely")==0){
sscanf(psr[p].obsn[i].flagVal[k],"%lf",&obs->y);
}
if (strcmp(psr[p].obsn[i].flagID[k],"-telz")==0){
sscanf(psr[p].obsn[i].flagVal[k],"%lf",&obs->z);
}
}
}
// New way
if (psr[p].t2cMethod == T2C_IAU2000B)
{
double trs[3], zenith_trs[3];
trs[0]=obs->x;
trs[1]=obs->y;
trs[2]=obs->z;
zenith_trs[0]= obs->height_grs80
* cos(obs->longitude_grs80) * cos(obs->latitude_grs80);
zenith_trs[1]= obs->height_grs80
* sin(obs->longitude_grs80) * cos(obs->latitude_grs80);
zenith_trs[2] = obs->height_grs80*sin(obs->latitude_grs80);
long double utc = psr[p].obsn[i].sat;
if (psr[p].obsn[i].clockCorr!=0 && psr[p].obsn[i].clockCorr!=2)
utc += getCorrection(psr[p].obsn+i,
psr[p].clockFromOverride,
"UTC", psr[p].noWarnings)/SECDAY;
get_obsCoord_IAU2000B(trs, zenith_trs,
psr[p].obsn[i].sat
+getCorrectionTT(psr[p].obsn+i)/SECDAY,
utc,
psr[p].obsn[i].observatory_earth,
psr[p].obsn[i].zenith,
psr[p].obsn[i].siteVel);
}
else {
psr[p].obsn[i].zenith[0]=psr[p].obsn[i].zenith[1]=psr[p].obsn[i].zenith[2]=0.0; // Only calc'd by IAU code
// if ( psr[p].obsn[i].zenith[2]==0.0)
erad = sqrt(obs->x*obs->x+obs->y*obs->y+obs->z*obs->z);//height(m)
hlt = asin(obs->z/erad); // latitude
alng = atan2(-obs->y,obs->x); // longitude
hrd = erad/(2.99792458e8*499.004786); // height (AU)
siteCoord[0] = hrd * cos(hlt) * 499.004786; // dist from axis (lt-sec)
siteCoord[1] = siteCoord[0]*tan(hlt); // z (lt-sec)
siteCoord[2] = alng; // longitude
/* PC,PS equatorial and meridional components of nutations of longitude */
toblq = (psr[p].obsn[i].sat+2400000.5-2451545.0)/36525.0;
oblq = (((1.813e-3*toblq-5.9e-4)*toblq-4.6815e1)*toblq +84381.448)/3600.0;
pc = cos(oblq*M_PI/180.0+psr[p].obsn[i].nutations[1])*psr[p].obsn[i].nutations[0];
/* TSID = sidereal time (lmst, timcalc -> obsite) */
lmst(psr[p].obsn[i].sat+psr[p].obsn[i].correctionUT1/SECDAY
,0.0,&tsid,&sdd);
tsid*=2.0*M_PI;
/* Compute the local, true sidereal time */
ph = tsid+pc-siteCoord[2];
/* Get X-Y-Z coordinates taking out earth rotation */
eeq[0] = siteCoord[0]*cos(ph);
eeq[1] = siteCoord[0]*sin(ph);
eeq[2] = siteCoord[1];
/* Now obtain PRN -- the precession matrix */
get_precessionMatrix(prn,(double)psr[p].obsn[i].sat
+psr[p].obsn[i].correctionUT1/SECDAY
,psr[p].obsn[i].nutations[0],
psr[p].obsn[i].nutations[1]);
/* Calculate the position after precession/nutation*/
for (j=0;j<3;j++)
psr[p].obsn[i].observatory_earth[j]=prn[j][0]*eeq[0]+prn[j][1]*eeq[1]+prn[j][2]*eeq[2];
/* Rotate vector if we are working in ecliptic coordinates */
if (psr[p].eclCoord==1) equ2ecl(psr[p].obsn[i].observatory_earth);
/* Calculate observatory velocity w.r.t. geocentre (1950.0)!!!! <<<<<<< */
speed = 2.0*M_PI*siteCoord[0]/(86400.0/1.00273);
sitera = 0.0;
if (speed>1.0e-10) sitera = atan2(psr[p].obsn[i].observatory_earth[1],
psr[p].obsn[i].observatory_earth[0]);
psr[p].obsn[i].siteVel[0] = -sin(sitera)*speed;
psr[p].obsn[i].siteVel[1] = cos(sitera)*speed;
psr[p].obsn[i].siteVel[2] = 0.0;
if (psr[p].eclCoord==1) equ2ecl(psr[p].obsn[i].siteVel);
/* Technically if using TDB these coordinates should be
transformed to that frame. In practise it doesn't matter,
we're only talking about 0.3 ns, or 2.5e-14 in v/c */
/* hack to transform for faked values of "K" */
// vectorscale(psr[p].obsn[i].observatory_earth, 1.15505);
// vectorscale(psr[p].obsn[i].siteVel, 1.15505);
}
}
}
else if (i==0)
printf("Delay correction turned off for psr %d\n", p);
}
}
}
