THE ASTRONOMER Electronic Circular No 1 1987 Jan 24  15.47UT.

COMET NISHIKAWA-TAKAMIZAWA-TAGO (1987c)
This comet was discovered independently by 4 observers as follows:
1987UT     R.A.(1950)Dec  m1 Observer
Jan 19.483 0 04.2  +06 52  9 Nishikawa
    20.399 0 03.5  +06 35  9 Takamizawa
    20.431 0 02.8  +06 28  9 Tago
    20.434 0 03.0  +06 28  9 Mitsuma
The first position has been remeasured (since our cable alert of
870121)by Kosai. The first discoverer is Noboru Nishikawa of
Minamata, Kumamoto and the instrument was 0.15-m refractor.
Elements by Marsden:
T=1987 Feb. 18.03 ET   Peri = 137.54
                       Node = 156.56
q=  1.0498 AU          Incl = 174.14
Ephemeris:
1987ET  RA (1950) Decl    Earth  Sun  Elong m1
Jan 25 23 56.09 + 4 51.76 1.293 1.123 56.7  8.0
    30 23 50.13 + 3 26.17 1.424 1.097 49.6  8.1
Feb  4 23 45.39 + 2 16.26 1.548 1.075 43.0  8.2
     9 23 41.48 + 1 17.46 1.663 1.060 36.6  8.3
    14 23 38.16 + 0 26.69 1.766 1.051 30.5  8.4
    19 23 35.26 - 0 18.16 1.858 1.049 24.4  8.5

Guy M Hurst