API VERSION: 1.2
API SOURCE: NASA/JPL Horizons API

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 Revised: Jan 18, 2026  INTEGRAL Spacecraft (gamma-ray observatory)       -198
            http://www.esa.int/export/esaMI/Integral/ESAR0RPV16D_0.html
 
 INTEGRAL (INTErnational Gamma-Ray Astrophysics Laboratory):
  Deployment (Proton)   = Oct 17, 2002    Diameter/length (meters) = 3.7/5 m
 
 ORBITAL DATA:
  Inclination           = 51  degrees     Orbital period           = ~72 hours
  Apogee altitude       = ~ 155000 km     Perigee altitude         = ~9,000 km
 
  The spacecraft will spend most of its time above an altitude of 40,000 km
  (outside Earth's radiation belts), thus minimizing background radiation
  effects. Will study black holes, neutron stars, active galactic nuclei and
  supernovae, providing information on formation of new chemical elements
  and gamma-ray bursts. ESA mission.
 
 WEIGHTS & PROPULSION:
   Launch Mass: 4 tonnes
 
 SPACECRAFT TRAJECTORY
   Launch to 2005-Jan-31 JPL Multi-Mission Navigation Team, merged solutions:
 
   OD0018_021017, OD0020_021019, OD0022_021021, OD0030_021029, OD0035_021108,
   OD0037_021119, OD0040_021129, OD0042_021206, OD0045_021216, OD0047_021222,
   OD0051_030102, OD0053_030108, OD0057_030120, OD0060_030127, OD0062_030207,
   OD0066_030219, OD0068_030228, OD0071_030310, OD0075_030321, OD0079_030402,
   OD0084_030416, OD0089_030502, OD0090_030505, OD0097_030529, OD0105_030624,
   OD0113_030721, OD0122_030817, OD0127_030907, OD0131_030919, OD0134_031001,
   OD0141_031022, OD0148_031117, OD0153_031201, OD0157_031212, OD0163_031230,
   OD0169_040126, OD0179_040222, OD0182_040302, OD0184_040309, OD0192_040401,
   OD0202_040428, OD0209_040521, OD0212_040530, OD0219_040620, OD0227_040714,
   OD0236_040810, OD0240_040822, OD0246_040906, OD0251_040927, OD0256_041015,
   OD0260_041101, OD0267_041123, OD0277_041215, OD0285_050101.
 
   2005-Jan-31 to 2015-Jan-01: JSpOC TLEs
   2015-Jan-01 to 2015-Dec-02: ESA-provided ephemeris
   2015-Dec-02 to PRESENT    : JSpOC TLEs
 
   NOTE:
    The ESA ephemeris is used for much of 2015 since TLE's issued by JSpOC were
    based on an obsolete predictive ephemeris for the spacecraft that did not
    reflect January 2015 maneuvering of INTEGRAL to a different orbit.
    http://sci.esa.int/integral/55345-integral-manoeuvres-for-the-future/
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Ephemeris / API_USER Sun Jan 18 08:44:34 2026 Pasadena, USA      / Horizons    
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Target body name: INTEGRAL (spacecraft) (-198)    {source: integral_merged}
Center body name: Earth (399)                     {source: DE441}
Center-site name: Swan Reach Imaging, Glenalta
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Start time      : A.D. 2025-Dec-08 00:00:00.0000 UT      
Stop  time      : A.D. 2025-Dec-22 00:00:00.0000 UT      
Step-size       : 10 minutes
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Target pole/equ : undefined
Target radii    : undefined                                                    
Center geodetic : 139.5701, -34.5440227, .056888  {E-lon(deg),Lat(deg),Alt(km)}
Center cylindric: 139.5701,5259.32258,-3596.34777 {E-lon(deg),Dxy(km),Dz(km)}
Center pole/equ : ITRF93                          {East-longitude positive}
Center radii    : 6378.137, 6378.137, 6356.752 km {Equator_a, b, pole_c}       
Target primary  : Earth
Vis. interferer : MOON (R_eq= 1737.400) km        {source: DE441}
Rel. light bend : Sun                             {source: DE441}
Rel. lght bnd GM: 1.3271E+11 km^3/s^2                                          
Atmos refraction: NO (AIRLESS)
RA format       : HMS
Time format     : CAL 
Calendar mode   : Mixed Julian/Gregorian
RTS-only print  : NO       
EOP file        : eop.260116.p260414                                           
EOP coverage    : DATA-BASED 1962-JAN-20 TO 2026-JAN-16. PREDICTS-> 2026-APR-13
Units conversion: 1 au= 149597870.700 km, c= 299792.458 km/s, 1 day= 86400.0 s 
Table cut-offs 1: Elevation (  0.0deg=YES),Airmass (>38.000=NO), Daylight (YES)
Table cut-offs 2: Solar elongation ( 12.0,180.0=YES),Local Hour Angle( 0.0=NO )
Table cut-offs 3: RA/DEC angular rate (     0.0=NO )                           
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$$SOE
No ephemeris meets criteria. Check table cut-off values shown above for:
 
  elevation angle
  airmass
  daylight only
  solar elongation
  local hour angle
  RA/DEC angular rate

$$EOE
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