The examples of the errors. ... Observations with ordinary values of the "Mean error of single observation" Obj Code DT RA (O-C) DEC (O-C) mag z h m s " ° ' " " ° 3907 761 1998 08 24.383673 3 17 44.739 0.28 +30 46 00.84 -0.08 15.8 18 3907 761 1998 08 24.409133 3 17 46.152 0.28 +30 46 10.85 0.12 15.8 11 3907 761 1998 08 25.392523 3 18 40.107 0.33 +30 52 27.69 0.04 15.4 15 Total mean value of 3 observations 0.297±0.017 0.027±0.058 Mean error of single observation 0.029 0.101 COMMENT. ...

... LOCATION . ... The administrative centre, the library, scientific laboratories, computer center, hotel and apartment houses of an observatory are located in the settlement Nizhnij Arkhiz , which is situated in 25 kms to the south from a village Zelenchukskaya. ... It is desirable to come on conference by the following types of transport: . ... During the conference period it is supposed to conduct a public meeting of the section "Sun" with discussion of results of the researches made in 2005. ...