------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2829 2012 Jun 13 15.25UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074 INTERNET: GUY@TAHQ.DEMON.CO.UK Backup: gmh@wdcc1.bnsc.rl.ac.uk WORLD WIDE WEB http://www.theastronomer.org ------------------------------------------------------------------- 2012 LZ1 Rob McNaught, Siding Spring Survey (E12) reports on M.P.E.C. 2012-L30 his discovery on June 10.70333 what has subsequently been classified as a Potentially Hazardous Object (PHA) then well into the southern sky. Observations: 2012 06 10.70333 18 54 05.22 -63 24 44.5 15.1 VrEL030E12 2012 06 10.83436 18 55 59.342-62 32 40.10 15.1 VrEL030E12 Orbital elements: 2012 LZ1 PHA, Earth MOID = 0.0312 AU Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC M 334.60964 (2000.0) P Q n 0.24313966 Peri. 13.89205 +0.12450858 +0.88919710 a 2.5423315 Node 264.68544 -0.94734493 -0.02539397 e 0.5923410 Incl. 26.24163 -0.29501727 +0.45681907 P 4.05 H 19.7 G 0.15 U 6 Ephemeris: Date TT R. A. (2000) Decl. Delta r Elong. V 2012 06 13 19 24 41.0 -42 51 53 0.041 1.051 148.6 14.2 2012 06 14 19 34 35.7 -29 40 54 0.038 1.049 151.5 13.9 2012 06 15 19 43 00.3 -14 40 28 0.036 1.047 148.5 13.9 2012 06 16 19 50 11.4 +00 15 57 0.038 1.045 140.3 14.2 2012 06 17 19 56 22.5 +13 18 33 0.041 1.044 130.9 14.7 2012 06 18 20 01 44.0 +23 43 48 0.047 1.042 122.6 15.2 2012 06 19 20 06 24.5 +31 43 55 0.054 1.041 116.1 15.6 2012 06 20 20 10 30.5 +37 50 13 0.061 1.040 111.0 16.0 2012 06 21 20 14 07.7 +42 32 29 0.069 1.039 107.1 16.4 Ernesto Guido, Italy e-mails referral to his blog for this object. He mentions the 'H' value of 19.7 infers the object's size could be 300-700 metres. Also he adds that 2012 LZ1 will be at its closest approach with Earth at ~14 lunar-distances (0.036 AU) on June 14, 23:10 UT. Guy M Hurst