[
 {
  "value": "638",
  "sigma": "6",
  "source": "Gonzalez Hernandez et al., A&A 643, A146 (HARPS laser frequency comb, Moon spectra, 97 weak Fe lines)",
  "year": "2020",
  "field": "solar spectroscopy",
  "id": "T5",
  "unit": "m/s",
  "quantity": "solar gravitational redshift seen from Earth",
  "grade": "primary abstract, PRIOR-ART row 5",
  "bound_low": "",
  "bound_high": "",
  "recalled": "no"
 }
]