{
  "TCTYP_X": "RA---TAN",
  "TCTYP_Y": "DEC--TAN",
  "TCRPX_X": 640.5,
  "TCRPX_Y": 640.5,
  "TCRVL_X": 187.175995,
  "TCRVL_Y": 3.52422,
  "TCDLT_X": -0.000442,
  "TCDLT_Y": 0.000442,
  "TCUNI_X": null,
  "TCUNI_Y": null,
  "RA_PNT": 187.17009,
  "DEC_PNT": 3.504441,
  "TSTART": 171970519.6128964,
  "TSTOP": 172053847.6128964,
  "OBJECT": "NGC4457",
  "OBSERVER": "YUICHI TERASHIMA",
  "DATE-OBS": "1998-06-14",
  "DATE-END": "1998-06-15"
}