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PostPosted: 05. November 2019, 16:04:39 PM 
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Meister
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Joined: 20. January 2013, 20:03:54 PM
Posts: 611
Location: Leipzig
Unser Maik hat das eigentliche entdeckt!

Im CBET 4639:
Quote:
On 2011 Nov. 27, M. Meyer reported finding apparently asteroidal images
00of comet P/2011 U1 (cf. IAUC 9236) on NEAT images taken on 2004 Feb. 14 and
19 with the 1.2-m reflector at Haleakala, HI; his measurements are tabulated
below.

2004 UT R.A. (2000) Decl. Mag.
Feb. 14.39685 9 27 17.63 +16 56 40.1 19.8
14.40775 9 27 17.27 +16 56 45.1 20.0
14.41861 9 27 16.85 +16 56 52.5 20.1
19.51524 9 24 22.48 +17 48 39.8 19.2
Bahnelemente:
Code:
                  Epoch = 2003 Dec. 27.0 TT
    T = 2003 Dec. 21.16304 TT        Peri. = 348.53292
    e = 0.3933174                    Node  = 137.10109 2000.0
    q = 2.5482279 AU                 Incl. =  15.70780
      a =  4.2002652 AU   n = 0.11449566   P =   8.61 years

                   Epoch = 2012 June  2.0 TT
    T = 2012 June 20.67922 TT        Peri. = 353.15259
    e = 0.4176639                    Node  = 135.00635 2000.0
    q = 2.3561001 AU                 Incl. =  15.24327
      a =  4.0459458 AU   n = 0.12110832   P =   8.14 years

                   Epoch = 2020 Aug. 19.0 TT
    T = 2020 Aug. 19.38289 TT        Peri. = 353.25956
    e = 0.4164509                    Node  = 134.94734 2000.0
    q = 2.3682319 AU                 Incl. =  15.22934
      a =  4.0583247 AU   n = 0.12055463   P =   8.18 years

_________________
Uwe Pilz, Fachgruppen Kometen und Astrophysik/Algorithmen.
Oft benutzte Instrumente: Swarovski SLC 7x50B, Fujinon 16x70 FMT-SX-2, TMB Apo 105/650, Ninja Dobson 320/1440


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PostPosted: 06. November 2019, 21:11:13 PM 
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Nutzer
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Joined: 04. June 2018, 16:12:24 PM
Posts: 26
Location: Linter
Quote:
Unser Maik hat das eigentliche entdeckt!
Naja, ich habe damals nur die Pre-Discovery-Beobachtungen in den NEAT-Daten gefunden nachdem der Komet entdeckt war. Die sind auch schon im MPC 77145 vom 10.12.2011 enthalten und wurden bei der Bahn berücksichtigt. Ich weiß gar nicht, warum Dan das jetzt bei dem CBET wieder rausgekramt hat.

Gruß

Maik


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