Dictionary of Nomenclature of Celestial Objects
(Last update: 26-Sep-2023)

Result of query: info cati EXO$

Details on Acronym:   DD
  
DD     (Direct Demodulation)
  ***** Avoid the usage of DD,  prefer EXO
 Originof the Acronym: A = Assigned by the author(s)

Details on Acronym:   EXO
  
EXO    (Exosat satellite)= (DD) = (EXOSAT) 
 Write:<<EXO  HHMM+DDd>>  

        <<EXO  HHMM.m+DDMM>>  

        <<EXO  HHMMSS+DDMM.m>>
Object:(X)  (SIMBAD class: X = X-ray Source)
   Ref:=1984EXOSA...3....1A
     byANDREWS D.

 EXOSAT Express, 3, 1-24 (1984)

    EXOSAT Satellite.

   Ref:=1991ApJ...378...77G
     byGIOMMI P.
, TAGLIAFERRI G., BEUERMANN K., BRANDUARDI-RAYMONT G., BRISSENDEN R., GRASER U., MASON K.O., MITTAZ J.P.D., MURDIN P., POOLEY G., THOMAS H.-C., TUOHY I.
 Astrophys. J., 378, 77-92 (1991)

    The EXOSAT high galactic latitude survey.

oTable1, 2: <EXO HHMM.m+DDMM> N=233
   Ref:=1996A&AS..115..395L
     byLU F.J.
, LI T.P., SUN X.J., WU M., PAGE C.G.
 Astron. Astrophys., Suppl. Ser., 115, 395-400 (1996)

    X-ray map from the EXOSAT galactic plane survey and a direct
    demodulation technique.
oThe 14 EXOSAT sources, named 'DD' by authors, are EXO sources in    SIMBAD.
o<EXO HHMM+DDd> N=14.
 Originof the Acronym: A = Assigned by the author(s)

Details on Acronym:   EXOSAT
  
EXOSAT (Exosat satellite)
  ***** Avoid the usage of EXOSAT,  prefer EXO