[Iaude] MPEC N106: COMET P/2024 L4 (Rankin)

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Mon Jul 8 22:53:01 EDT 2024


M.P.E.C. 2024-N106                                 Issued 2024 July 9, 02:49 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  They are published
    on behalf of Division F of the International Astronomical Union by the
          Minor Planet Center, Smithsonian Astrophysical Observatory,
                          Cambridge, MA 02138, U.S.A.
			  
             Prepared using the Tamkin Foundation Computer Network

                              MPC at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                            COMET P/2024 L4 (Rankin)                            

     D. Rankin reports the discovery of a comet in survey images taken by
Mt. Lemmon Survey (G96) on Jun. 15 UT, noting a very condensed 6" coma.
Additional reports of cometary features are as follows:

OC   Date        Reporter           Coma    Tail    PA          Exposures

I52  2024-06-16  G. J. Leonard      8"                            12x42s
W62  2024-07-08  J. Maikner         4"        7"     70           70x40s

Observations:
    PK24L040*1C2024 06 15.42612922 43 42.208+06 31 23.52         20.90GVEN106G96
    PK24L040 1C2024 06 15.43133322 43 41.693+06 31 16.64         20.88GVEN106G96
    PK24L040 1C2024 06 15.43656122 43 41.131+06 31 09.91               VEN106G96
    PK24L040 1C2024 06 15.44754222 43 40.145+06 30 54.79         20.91GVEN106G96
    PK24L040 1C2024 06 15.44955522 43 39.932+06 30 51.70         21.12GVEN106G96
    PK24L040 1C2024 06 15.45080622 43 39.839+06 30 50.51         20.78GVEN106G96
    PK24L040 KC2024 06 16.44552522 42 08.374+06 08 17.48         20.60GVEN106I52
    PK24L040 KC2024 06 16.45060822 42 07.873+06 08 11.18         21.00GVEN106I52
    PK24L040 KC2024 06 16.45569422 42 07.376+06 08 03.73         20.57GVEN106I52
    PK24L040 KC2024 06 16.46077222 42 06.851+06 07 57.11         21.42GVEN106I52
    PK24L040 KC2024 06 17.40117122 40 38.831+05 46 28.16         20.64GVEN106I52
    PK24L040 KC2024 06 17.41357322 40 37.585+05 46 11.03         20.43GVEN106I52
    PK24L040 KC2024 06 17.42153722 40 36.800+05 46 00.41         20.80GVEN106I52
    PK24L040 KC2024 06 17.42951722 40 35.980+05 45 49.21         20.83GVEN106I52
    PK24L040  C2024 06 17.54449722 40 25.177+05 43 14.56         20.93GVEN106F52
    PK24L040  C2024 06 17.57895222 40 21.684+05 42 27.17         21.24GVEN106F52
    PK24L040 KC2024 06 18.05121422 39 36.62 +05 31 27.3          20.7 GUEN106L06
    PK24L040 KC2024 06 18.05613222 39 36.12 +05 31 20.4          20.6 GUEN106L06
    PK24L040 KB2024 06 18.20948 22 39 21.01 +05 27 54.5          20.1 VqEN106Y66
    PK24L040 KB2024 06 18.21174 22 39 20.83 +05 27 51.3          20.7 VqEN106Y66
    PK24L040 KB2024 06 18.21383 22 39 20.58 +05 27 48.1          20.3 VqEN106Y66
    PK24L040 KC2024 06 18.41794322 39 01.116+05 23 03.52         20.60GVEN106I52
    PK24L040 KC2024 06 18.42916822 38 59.968+05 22 48.04         20.76GVEN106I52
    PK24L040 KC2024 06 18.43791522 38 59.068+05 22 35.76         21.18GVEN106I52
    PK24L040 KB2024 06 19.21052 22 37 43.13 +05 04 41.9                qEN106Y66
    PK24L040 KB2024 06 19.21405 22 37 42.78 +05 04 36.4                qEN106Y66
    PK24L040 KB2024 06 19.21739 22 37 42.44 +05 04 31.7                qEN106Y66
    PK24L040 /C2024 06 19.60377 22 37 04.13 +04 55 32.9          20.9 GVEN106F65
    PK24L040 /C2024 06 19.60481 22 37 04.01 +04 55 32.2          20.8 GVEN106F65
    PK24L040 /C2024 06 19.60578 22 37 03.95 +04 55 30.6          21.0 GVEN106F65
    PK24L040 /C2024 06 19.60675 22 37 03.84 +04 55 29.1          21.0 GVEN106F65
    PK24L040 KB2024 06 20.20975 22 36 03.36 +04 41 19.0                qEN106Y66
    PK24L040 KB2024 06 20.21210 22 36 03.10 +04 41 15.4                qEN106Y66
    PK24L040 KB2024 06 20.21428 22 36 02.85 +04 41 12.0                qEN106Y66
    PK24L040 KB2024 06 21.18897 22 34 23.42 +04 18 12.1                qEN106Y66
    PK24L040 KB2024 06 21.19076 22 34 23.25 +04 18 09.2                qEN106Y66
    PK24L040 KB2024 06 21.19238 22 34 23.06 +04 18 06.9                qEN106Y66
    PK24L040 KB2024 06 21.19400 22 34 22.91 +04 18 04.5                qEN106Y66
    PK24L040 KB2024 06 25.18910 22 27 11.86 +02 41 30.0                qEN106Y66
    PK24L040 KB2024 06 25.19151 22 27 11.60 +02 41 26.4                qEN106Y66
    PK24L040 KB2024 06 25.19376 22 27 11.33 +02 41 22.9                qEN106Y66
    PK24L040 KB2024 06 26.16741 22 25 20.75 +02 17 16.5                qEN106Y66
    PK24L040 KB2024 06 26.16862 22 25 20.61 +02 17 15.3                qEN106Y66
    PK24L040 KB2024 06 26.16967 22 25 20.48 +02 17 13.6                qEN106Y66
    PK24L040 KB2024 06 28.16822 22 21 26.22 +01 27 03.9          20.9 VqEN106Y66
    PK24L040 KB2024 06 28.17053 22 21 25.95 +01 27 00.3          23.0 VqEN106Y66
    PK24L040 KB2024 06 28.17270 22 21 25.66 +01 26 57.7          22.5 VqEN106Y66
    PK24L040  C2024 06 30.55792522 16 34.091+00 25 57.26         21.15wXEN106F51
    PK24L040  C2024 06 30.57130222 16 32.328+00 25 36.54         21.02wXEN106F51
    PK24L040  C2024 06 30.58567922 16 30.441+00 25 14.28         21.08wXEN106F51
    PK24L040  C2024 06 30.59908022 16 28.679+00 24 53.45         21.02wXEN106F51
    PK24L040  C2024 07 01.56059922 14 27.745-00 00 03.23         21.05GVEN106F52
    PK24L040  C2024 07 01.56348422 14 27.360-00 00 07.55         20.59GVEN106F52
    PK24L040 3C2024 07 02.25481 22 12 59.42 -00 17 56.0          21.4 GVEN106W85
    PK24L040 3C2024 07 02.25717 22 12 59.09 -00 17 59.6          21.4 GVEN106W85
    PK24L040 KC2024 07 04.97578022 07 02.54 -01 30 04.4          21.4 GVEN106L01
    PK24L040 pC2024 07 04.98762122 07 01.00 -01 30 23.3          21.7 GVEN106L01
    PK24L040 KB2024 07 05.14697 22 06 39.34 -01 34 33.4                qEN106Y66
    PK24L040 KB2024 07 05.14843 22 06 39.13 -01 34 35.6                qEN106Y66
    PK24L040 KB2024 07 05.14976 22 06 38.94 -01 34 37.7                qEN106Y66
    PK24L040 KB2024 07 05.15110 22 06 38.76 -01 34 39.9                qEN106Y66
    PK24L040 KB2024 07 05.15243 22 06 38.58 -01 34 42.0                qEN106Y66
    PK24L040 !C2024 07 07.44385 22 01 27.13 -02 35 59.6          20.0 GVEN106673
    PK24L040 !C2024 07 07.44646 22 01 26.76 -02 36 03.8                VEN106673
    PK24L040 KC2024 07 08.28382 21 59 31.31 -02 58 34.9          20.0 GXEN106W62
    PK24L040 KC2024 07 08.29480 21 59 29.67 -02 58 52.6          19.9 GXEN106W62
    PK24L040 KC2024 07 08.30555 21 59 28.13 -02 59 10.0                XEN106W62

Observer details:
673 Table Mountain Observatory, Wrightwood.  Observer J. Pittichova.  1.0-m
    f/15 reflector + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
F65 Haleakala-Faulkes Telescope North.  Observers P. Breitenstein, C. Ambros,
    M. Patzek, B. Gundlach, C. Guettler, M. Li, M. Goldmann, B. Aussel, L.
    Bannemann, M. Tiedeken, A. L. Holm, L. Borsd.  Measurer P. Breitenstein.
    2.0-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observer D. Rankin.  Measurers T. Beuden, V. F.
    Carvajal, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
    Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, D.
    Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector +
    10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
    Measurers T. Beuden, V. F. Carvajal, D. Fay, J. B. Fazekas, D. C. Fuls, A.
    R. Gibbs, A. D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M.
    Larson, G. J. Leonard, D. Rankin, R. L. Seaman, F. C. Shelly, K. W.
    Wierzchos.  1.0-m prime focus + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
L06 Sormano 2 Observatory, Bellagio Via Lattea.  Observer G. Ventre.  Measurer
    P. Sicoli.  0.36m Schmidt Cassegrain + CCD.
W62 Comet Hunter Observatory2, New Ringgold.  Observer J. Maikner.  0.30-m
    f/3.8 Riccardi-Honders + CCD.
W85 Cerro Tololo-LCO A.  Observer P. Breitenstein.  1.0-m Ritchey-Chretien +
    CCD.
Y66 Two-Meter Twin Telescope, TTT2, Teide.  Observer M. R. Alarcon.
    Measurer M. Serra-Ricart.  0.80-m f/4.38 reflector + CMO.

Orbital elements:
    P/2024 L4 (Rankin)                                                          
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                                         
T 2024 Apr. 14.29200 TT                                 Rudenko                 
q   0.6719660            (2000.0)            P               Q                  
n   0.29582508     Peri.   53.70906     -0.96443613     +0.23905070             
a   2.2307251      Node   139.77515     -0.26124909     -0.92693421             
e   0.6987679      Incl.   10.05701     +0.04014805     -0.28921918             
P   3.33                                                                        
>From 67 observations 2024 June 15-July 8, mean residual 0".3.                   
                                                                                
Ephemeris:
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
2024 06 09    22 52 50.8 +08 54 01   0.4695  1.1205    90.3    65.0  20.4
...
2024 06 24    22 29 23.9 +03 10 46   0.4990  1.2886   111.9    47.0  21.1
...
2024 07 02    22 13 31.7 -00 11 23   0.5169  1.3766   124.4    37.5  21.5
...
2024 07 08    22 00 10.5 -02 50 45   0.5348  1.4416   134.2    30.4  21.7
2024 07 09    21 57 51.4 -03 17 39   0.5384  1.4523   135.9    29.2  21.8
2024 07 10    21 55 31.2 -03 44 34   0.5420  1.4630   137.5    28.0  21.8
...
2024 07 16    21 41 14.4 -06 25 10   0.5682  1.5265   147.5    20.9  22.1
...
2024 07 24    21 22 19.9 -09 48 31   0.6153  1.6094   160.7    12.1  22.5
...
2024 08 08    20 51 42.0 -15 00 02   0.7468  1.7591   174.9     2.9  23.3

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-N106





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