SIMBAD references

Further to IAUC 8146, M. F. Corcoran reports that, since Mar. 6, daily monitoring PCA observations of eta Car with the RXTE show six x-ray peaks with a quasi-period of about 21 days, the last having occurred on June 15 (about 19.9 days after the previous x-ray peak) with a 2-10-keV flux of 2.1 x 10**-10 erg s**-1 cm**-2. On June 19, the 2-10-keV flux had fallen to 7.2 x 10**-11 erg s**-1 cm**-2; eta Car has not been this faint in x-rays since 2002 Feb. 26 – suggesting continuation of the x-ray eclipse ingress (IAUC 8146). A straight-line fit to the June 15-19 data suggests that the x-ray minimum would be reached on June 21.