Update for (1035) Amata - January 2/3, 2003

  • Update computed by Jan Manek;   issued 31 Dec 2002 22:50 +0100 (CET)

  • Jan Manek's update

                        IOTA/IOTA-ES occultation update for
                (1035) Amata / TYC 1187-00437-1 on January 2/3, 2003
             visible from France, Switzerland, Austria, Hungary, Romania,
                        Crimean peninsula and S Russia
    
    Summary 

    In the night of January 2/3, 2003 a 10.7 mag star TYC 1187-00437-1 will be occulted by a 57 km asteroid (1035) Amata. This update is based on USNO/Flagstaff astrometry for the asteroid and recent UCAC star position.

    The updated path shows ~10 path width north shift with time 1.9 minutes earlier compared to Edwin Goffin's nominal prediction.

    Updated path runs over mid-north France ~20:56.5 UT, north Switzerland ~20:57.0 UT, Austria ~20:57.3 UT, Hungary just south of Budapest ~20:57.5 UT, Romania ~20:57.7 UT, Crimean peninsula ~20:58.0 UT and S Russia ~20:58.2 UT. Within uncertainties also other areas - most of France, south Germany, north Italy, Czechia, Slovakia, Moldavia and SE Ukraine to name some. Please check the path chart for details.

    Rather large uncertainty also because of large but not absolutely correct Tycho-2 parallax. This update takes the parallax into account.

    Clear sky and good luck !!!

    
    The event at one glimpse:
     * date and approx. UT time of event: January 2, 2003 @ 20:57 UT (Europe)
     * magnitude of target star: 10.7
     * magnitude drop [mag]: 4.9
     * estimated maximum duration [s]: 3.8
     * path description: given above
     * Goffin's original chart reference: A03_0164
    
    The occultation path:
     * approximate ground width [km]: 65
     * uncertainty [path widths]: 3.7
     * uncertainty in time [s]: 13
     * map: below
     * remarks: Path uncertainties are given according to nominal star
        position errors and expected asteroid positional accuracy.
    
    Data for the target star:
     * name: TYC 1187-00437-1
     * constellation: Pisces
     * J2000 position [h,m,s; o,',"]: 00h 42m 16.4585s; +17o 09' 16.284"
     * position source: recent UCAC position combined with Tycho-2 proper motion and parallax
     * estimated accuracy ["]: 0.02" (0.01", 0.02")
     * V mag [mag]: 10.65
     * B-V [mag]: +1.79
     * remarks:
        Recent UCAC position was provided by Marion and Norbert Zacharias.
        Target star is in middle-west Pisces, about 7.2 degrees east of 2.8 mag star gamma Pegasi = SAO 91781
        or 31' north of 6.5 mag star SAO 92047.
        !!! IMPORTANT !!!
        Purple stars in identification chart are so called 'non-star' objects in GSC; in dense fields
        the 'non-stars' are often real stars or blends of close pairs. Be careful about this.
    
    Close finding chart (prepared in GUIDE7):
     * occulted star is in center - labeled with cross
     * field is 3.0x3.0 degrees
     * limiting magnitude is 13.0
     * labeled stars have indicated SAO numbers
     * remarks:
    
    

    Close finding chart Data for the minor planet: * general information: number, name: (1035) Amata approx. diameter [km]: 57 * orbital information orbit source: calculation Manek source of used astrometry: USNO/Flagstaff (Ron Stone) number of used observations: 51 USNO number of rejected observations: 8 USNO time covered by the observations: 1998 01 29 - 2002 11 22 rms residuals ["] (RA,DE): 0.10", 0.17" estimated positional accuracy at epoch of event ["]: 0.09", 0.10" remarks: Data for the event: * UT date and time of least geocentric approach: 20:51.7 UT * approx. V mag of minor planet at event [mag]: 15.6 * geocentric parallax of minor planet ["]: 3.388 * magnitude drop [mag]: 4.9 * estimated maximum duration [s]: 3.8 * apparent motion of minor planet ["/h]: 28.55 * angular distance to moon, phase of moon [deg,%]: 95, 0% * remarks: Elements for WinOccult: ============ cut here =========================================== 2003 Jan 02 1035 Amata 20h 51.7m UT 87-00437-1 10.7 0 42 16.459 17 9 16.28TYC 1187-00437-1 15.6 57 3.8 2.596 1.839 10.99 -44.446 17.152 228.09 -22.89 20.8623 -.12547 .29944 7.77971 3.24233 0.00553 0.00231 2000 51.75832222003 1 1.00000323.1393632.180664 18.081250 0.200972053.139335322.5084166710.35 0.15 RATE 1.7719339 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000 ============ cut here =========================================== Calculator(s): Jan Manek

    Updated path location for (1035) Amata on January 2/3, 2003 Path coordinates: Center Altitude Path Limits E. Longitude Latitude U.T. star sun Limit 1 Limit 2 ........................... shortened ............................. o ' " o ' " h m s o o o ' " o ' " Latitude Latitude - 14 0 0 45 40 7 20 55 31 51 -36 45 23 31 45 56 45 - 13 0 0 45 48 34 20 55 35 51 -37 45 31 59 46 5 10 - 12 0 0 45 56 37 20 55 40 50 -37 45 40 4 46 13 11 - 11 0 0 46 4 16 20 55 44 49 -38 45 47 45 46 20 49 - 10 0 0 46 11 32 20 55 48 49 -39 45 55 3 46 28 4 - 9 0 0 46 18 26 20 55 53 48 -39 46 1 57 46 34 55 - 8 0 0 46 24 55 20 55 57 47 -40 46 8 29 46 41 24 - 7 0 0 46 31 2 20 56 1 47 -41 46 14 37 46 47 30 - 6 0 0 46 36 47 20 56 5 46 -42 46 20 22 46 53 13 - 5 0 0 46 42 8 20 56 9 45 -42 46 25 44 46 58 33 - 4 0 0 46 47 7 20 56 13 45 -43 46 30 44 47 3 31 - 3 0 0 46 51 43 20 56 17 44 -44 46 35 21 47 8 6 - 2 0 0 46 55 56 20 56 20 43 -44 46 39 36 47 12 18 - 1 0 0 46 59 47 20 56 24 43 -45 46 43 27 47 16 9 0 0 0 47 3 16 20 56 28 42 -45 46 46 57 47 19 37 1 0 0 47 6 23 20 56 32 42 -46 46 50 4 47 22 43 2 0 0 47 9 7 20 56 35 41 -47 46 52 49 47 25 26 3 0 0 47 11 29 20 56 39 40 -47 46 55 12 47 27 48 4 0 0 47 13 29 20 56 42 40 -48 46 57 12 47 29 48 5 0 0 47 15 7 20 56 46 39 -49 46 58 50 47 31 25 6 0 0 47 16 23 20 56 49 38 -49 47 0 7 47 32 41 7 0 0 47 17 17 20 56 52 38 -50 47 1 1 47 33 35 8 0 0 47 17 49 20 56 56 37 -51 47 1 33 47 34 7 9 0 0 47 17 59 20 56 59 36 -51 47 1 43 47 34 17 10 0 0 47 17 48 20 57 2 36 -52 47 1 31 47 34 6 11 0 0 47 17 14 20 57 5 35 -52 47 0 57 47 33 32 12 0 0 47 16 18 20 57 8 34 -53 47 0 2 47 32 37 13 0 0 47 15 1 20 57 11 34 -54 46 58 44 47 31 20 14 0 0 47 13 22 20 57 14 33 -54 46 57 4 47 29 41 15 0 0 47 11 20 20 57 17 32 -55 46 55 2 47 27 40 16 0 0 47 8 57 20 57 20 32 -55 46 52 39 47 25 17 17 0 0 47 6 12 20 57 23 31 -56 46 49 53 47 22 33 18 0 0 47 3 5 20 57 26 30 -57 46 46 45 47 19 26 19 0 0 46 59 36 20 57 29 29 -57 46 43 15 47 15 58 20 0 0 46 55 44 20 57 31 29 -58 46 39 23 47 12 8 21 0 0 46 51 31 20 57 34 28 -58 46 35 8 47 7 55 22 0 0 46 46 56 20 57 36 27 -59 46 30 32 47 3 21 23 0 0 46 41 58 20 57 39 27 -60 46 25 33 46 58 24 24 0 0 46 36 38 20 57 41 26 -60 46 20 12 46 53 5 25 0 0 46 30 56 20 57 44 25 -61 46 14 28 46 47 24 26 0 0 46 24 51 20 57 46 25 -61 46 8 22 46 41 21 27 0 0 46 18 24 20 57 48 24 -62 46 1 54 46 34 55 28 0 0 46 11 34 20 57 51 23 -62 45 55 3 46 28 7 29 0 0 46 4 22 20 57 53 23 -63 45 47 49 46 20 56 30 0 0 45 56 47 20 57 55 22 -63 45 40 12 46 13 23 31 0 0 45 48 49 20 57 57 21 -64 45 32 13 46 5 26 32 0 0 45 40 28 20 57 59 20 -64 45 23 50 45 57 7 33 0 0 45 31 44 20 58 1 20 -65 45 15 5 45 48 25 34 0 0 45 22 38 20 58 3 19 -65 45 5 56 45 39 21 35 0 0 45 13 8 20 58 5 18 -66 44 56 24 45 29 53 36 0 0 45 3 14 20 58 7 18 -66 44 46 29 45 20 1 37 0 0 44 52 58 20 58 8 17 -67 44 36 11 45 9 47 38 0 0 44 42 18 20 58 10 16 -67 44 25 28 44 59 9 39 0 0 44 31 14 20 58 12 15 -67 44 14 23 44 48 7 40 0 0 44 19 47 20 58 13 15 -68 44 2 53 44 36 42 41 0 0 44 7 56 20 58 15 14 -68 43 51 0 44 24 54 42 0 0 43 55 41 20 58 16 13 -69 43 38 43 44 12 41 43 0 0 43 43 2 20 58 17 12 -69 43 26 2 44 0 5 44 0 0 43 29 60 20 58 19 12 -69 43 12 57 43 47 4 45 0 0 43 16 33 20 58 20 11 -70 42 59 27 43 33 40 46 0 0 43 2 42 20 58 21 10 -70 42 45 34 43 19 51 47 0 0 42 48 26 20 58 22 9 -70 42 31 16 43 5 38 48 0 0 42 33 47 20 58 23 9 -70 42 16 34 42 51 1 49 0 0 42 18 42 20 58 24 8 -70 42 1 27 42 35 60 50 0 0 42 3 14 20 58 24 7 -71 41 45 56 42 20 34 51 0 0 41 47 21 20 58 25 6 -71 41 29 60 42 4 43 52 0 0 41 31 3 20 58 26 5 -71 41 13 39 41 48 28 53 0 0 41 14 20 20 58 26 5 -71 40 56 54 41 31 48 ........................... shortened ............................. ---------------------------------------------------------------------------- Jan Manek Stefanik Observatory Private : Petrin 205 Werichova 950 118 46 Praha 1 152 00 Praha 5 - Barrandov |_|_| Czech Republic Czech Republic / \ Internet : jan.manek@worldonline.cz |-O-O-| --------------------------------------------------------------------U---U---

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