Airglow Data Obtained at Kiso Station,
Tokyo Astronomical Observatory, The University of Tokyo
(137.63 E, 35.79 N, altitude=1130m)

Airglow intensities at zenith (3 degrees diameter):
Observations have been made regularly on moonless clear nights.

The reduction of data had been carried out by Photometry Division,
Tokyo Astronomical Observatory, The University of Tokyo (1979-1988),
and by Optical and Infrared Astronomy Division, National Astronomical
Observatory of Japan (1988-1990).

Files are named as
     KHyymm.txt
where
     yy: year
     mm: month.

Data Format

                1980   1  21    KISO               <= year,month,date

NO.     H  M     4358A(R)   5577A(R)   5893A(R)   6300A(R)   5000A(S)   5300A(S)  53-50(S10)   53-50(R)

  1    23 00        64.5       84.3       34.5       22.4      245.7      232.1      -13.6       -5.7       5
  2     0 00        61.3       97.5       38.6       13.8      223.4      212.3      -11.2       -4.7       5


The date in the title line refers to the local date of the evening.
The actual observations may be done after midnight, on the next day.

(H, M) = date and time in JST (=UT+9)

wavelength bands
4358 Angstrom (Hg from city light)
5000 Angstrom (background for reference)
5300 Angstrom (background for reference)
5577 Angstrom (O I)
5893 Angstrom (Na D)
6300 Angstrom (O I)
STD = standard lamp
ZERO = dark signal

1 Rayleigh = 10^6 photons cm^-2 sec-1 /column
S10 = equivalent number of 10-th magnitude G0 stars per square degree
      1 Rayleigh = 239 S10 at 5300 Angstrom

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Since 1991, the reduction of data has been carried out by Physics Department,
Niigata University. The data format is different from that given above,
but will be self-explanatory.
Files are named as
     Kcyymm.txt
where
     c: G (green, 5577 Angstrom), O (orange, 5893 Angstrom), or R (red, 6300 Angstrom)
     yy: year
     mm: month.