[IAUC] IAUC 9201: P/2011 E1; Comet 2011 UT R.A.(2000); 249P [25139-2011/04-R1]

[quai en eps.harvard.edu]

                                                  Circular No. 9201
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
New postal address:  Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
CBATIAU en EPS.HARVARD.EDU           ISSN 0081-0304
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


COMET P/2011 E1 (SOHO)
     Further to IAUC 9200, K. Battams (Naval Research Laboratory)
reports that Rainer Kracht has found a presumed comet of stellar
appearance (peaking around mag 6.5-7) in SOHO-satellite website
images obtained with the LASCO C3 and C2 coronagraphs.


 Comet        2011 UT       R.A.(2000)Decl.   Inst.  F    MPEC
 C/2011 E1    Mar. 9.363    23 29.7  - 3 07   C3/2  RK   2011-F14

The reduced astrometry, orbital elements, residuals, and an
ephemeris for potential ground-based observation is given on MPEC
2011-F14.  Kracht has suggested that this object may be linked to
C/2000 O3 and C/2005 W4, with the linked orbits below having been
computed now by G. V. Williams.  As noted on IAUC 8638, C/2005 W4
was suggested by S. Hoenig to be a return of C/2000 O3, and B. G.
Marsden published an orbital linkage on MPEC 2005-X14.

                    Epoch = 2011 Mar. 20.0 TT
     T = 2011 Mar.  9.8366 TT         Peri. =  57.2558
     e = 0.982461                     Node  =  44.7869  2000.0
     q = 0.053398 AU                  Incl. =  13.1085
       a =  3.044568 AU    n = 0.1855306    P =   5.312 years

                    Epoch = 2005 Nov.  6.0 TT
     T = 2005 Nov. 23.4979 TT         Peri. =  49.3708
     e = 0.982075                     Node  =  53.1078  2000.0
     q = 0.054602 AU                  Incl. =  14.6320
       a =  3.046193 AU    n = 0.1853822    P =   5.317 years

                    Epoch = 2000 Aug.  4.0 TT
     T = 2000 July 30.9495 TT         Peri. =  48.9538
     e = 0.982236                     Node  =  53.5549  2000.0
     q = 0.054063 AU                  Incl. =  14.7306
       a =  3.043372 AU    n = 0.1856400    P =   5.309 years


COMET 249P/LINEAR
     Comet P/2011 A4 = P/2006 U1 (cf. IAUC 9194) has been given the
permanent number 249P.

                      (C) Copyright 2011 CBAT
2011 March 21                  (9201)            Daniel W. E. Green