SETI bioastro: Fw: AstroAlert: 99 asteroid occ'ns seen in 2003; more chances this month

From: LARRY KLAES (ljk4_at_msn.com)
Date: Sat Dec 06 2003 - 21:33:03 PST

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    ----- Original Message -----
    From: David Dunham
    Sent: Saturday, December 06, 2003 2:24 AM
    To: occultation_at_SkyandTelescope.com
    Subject: AstroAlert: 99 asteroid occ'ns seen in 2003; more chances this month

    ==================================================================
    This Is SKY & TELESCOPE's AstroAlert for Occultations
    ==================================================================

          99 asteroidal occultations have been observed so far in 2003,
    beating last year's record of 84. You can see the list of them at
    http://iota.jhuapl.edu/mpocc23.txt . The next observed occultation
    on the list below will be #100 for 2003, a new milestone - maybe
    you'll make the lucky observation.

          Updated information about asteroidal occultations visible from
    North and South America, Europe, Asia, New Zealand, & Australia and
    other areas through the end of December, are summarized according to
    calculations by Steve Preston (comprehensive here only for North
    America; occultations of brighter stars given for other areas) and
    Jan Manek (for Europe). Updated path maps, finder charts, and other
    detailed information about these events can be found at the Web
    sites at the end of this message; Steve Preston's Web site also has
    path updates for South America, Australia, New Zealand, Japan, and
    often other areas, while Jan Manek's site covers Europe and southern
    Africa (but some European events are instead on Preston's site,
    especially trans-Atlantic events); you should consult them since I
    mainly list the better foreign and North American events here. Under
    "Approx. location", places are spelled out when they can be, but
    usually it is necessary to use the standard two-letter postal
    abbreviations for the States of the USA and provinces of Canada (for
    example, AB = Alberta, NB = New Brunswick, NE = Nebraska) or the
    two-letter country abbreviations used in Web and e-mail addresses
    (FR = France, DE = Germany, NZ = New Zealand, etc.). A complete
    list of these codes is at
    http://www.nwhealth.edu/it/employs/abbrev.html . "cen." or "c"
    means central, and small letters, with or without ".", indicate the
    part of the State, Province, or country, such as sCA = southern
    California, nON = northern Ontario, sTX = southern Texas, etc.
    Rarely, 3-letter airport abbreviations are used, and I use "Sib" for
    Siberia. Often, not every place crossed by a path is mentioned, so if
    you are between two listed states or countries, the event may occur in
    your location; also, due to remaining path errors, if you are in
    adjacent areas, you should also watch since the actual path might
    occur at your location. Unless otherwise specified in the notes, the
    magnitude drop in case of an occultation is 1.0 or more. Those
    especially in the Americas are reminded that the dates and times below
    are U.T., and that local dates may be a day earlier. NOTE that the
    times are U.T.; especially in the Americas, events often occur the
    evening of the PREVIOUSLY-LISTED date, local time.

    2003 Asteroid S t a r
    Date U.T. Diam., R.A.(2000)Dec.
    Dec. h m m # Name km mag. h m o / Approx. location
      7 2:49-:49 115 Thyra 79 11.0 20 50.5 -13 21 MO,sKS,nTX,NM,sAZ,MX
      7 22:59-:61 757Portlandia 32 8.2 00 04.8 +01 32 Ohio,seOnt.,Quebec
      8 4:08-:11 1343 Nicole 24 11.8 05 56.0 +29 41 Bahamas, sFla., cMX
      9 5:22-:24 103 Hera 95 11.0 11 32.4 +04 39 nSpain,swFR,sItaly
    10 21:40-:63 674 Rachele 101 11.5 01 29.6 +03 17 ZA,AL,ES,FR,BE,NL,NO
    11 7:49-:49 1172 Aeneas 142 9.3 07 16.1 +10 14 Patagonia,s.Chile
    11 12:11-:20 647 Adelgunde 17 10.0 08 15.9 +13 44 ND,WY,nUT,sNV,cenCA
    12 0:27-:28 597 Bandusia 36 11.1 23 02.5 -13 27 AL,GA,VA,MD,PA,NH,NB
    12 1:08-:19 4457 van Gogh 12 9.7 05 18.5 +02 05 nwRU,sSE,nUK,eNS,sIA
    12 1:43-:44 627 Charis 48 9.3 22 58.1 -11 08 nwOR,WA,seBC,sAB,SK
    12 10:50-:51 1264 Letaba 74 10.6 05 14.2 +08 04 NC,TN,OK,nNM,sCA,wHI
    13 7:20-:28 1988 Delores 23 11.4 07 15.8 +20 59 sNS,ME,sQC,MB,AB,BC
    14 3:28-:39 231 Vindobona 82 11.2 05 13.4 +30 13 nEG,neLB,Malta,nES,
                sNF,nNB,sQC,sON,cMI,sWI,IA,seNE,nwKS,seCO,nwNM,AZ,San Diego
    14 6:45-:51 1036 Ganymed 31 11.9 09 03.9 -17 13 wNF,PE,cNS,eCU,JM,CR
    15 6:09-:16 1783 Albitskij 21 10.7 07 32.3 +03 13 nMN,SD,sWY,UT,NV,cCA
    15 6:50-:56 590 Tomyris 39 10.8 07 19.6 +20 12 sGA,nMS,OK,CO,UT,nCA
    15 13:04-:11 1153 Wallenb. 13 7.8 08 53.0 +16 21 nTX-DFW,cNM,cAZ,sCA
    16 17:11-:18 828 Lindemania 53 8.9 08 17.2 +21 11 sHonshu,sKR,nChina
    16 20:41-:43 638 Moira 65 6.7 23 55.1 -09 28 sEthiopia,n&wCongo
    17 9:57-:57 348 May 82 9.5 20 22.3 -24 59 AU-nNSW,seQueensland
    18 0:12-:28 104 Klymene 123 11.4 06 01.9 +26 38 swCN,UZ,swKZ,swRU,
       BL,sLT,Kalingrad,sSE,DK,nUK,s&eQC,seON,sMI,nIN,IL,MO,seKS,OK,nwTX,sNM
    18 8:34-:39 1493 Sigrid 24 11.9 06 04.1 +27 08 MD,OH,nIL,nIA,SD,nOR
    18 12:58-:68 3372Bratijchuk 11 8.7 05 18.7 +28 05 MX,sCA,seSib,nCN,nIN
    21 1:17-:23 114 Kassandra 99 11.8 00 23.5 -01 19 MX,TX,OK,IL,OH,ON,QC
    22 4:09-:19 1173 Anchises 126 10.2 06 56.7 +23 15 CanaryIs,nFL,sTX,nMX
    22 21:43-:58 925Alphonsina 54 6.3 05 06.8 +43 10 nwCN,RU,LT,nwPL,
                                   Germany-Berlin,France,Spain,sPT,neBrazil
    24 6:05-:10 792 Metcalfia 60 9.4 05 52.8 +22 16 Bahamas,Havana,cMex.
    24 8:24-:24 77 Frigga 69 11.8 12 55.6 -05 39 NM,nTX,nLA,sMS,nFla.
    24 8:57-:62 34 Circe 113 11.8 06 49.6 +13 57 Bahamas,sFL,sTX,nwMX
    25 13:18-:23 462 Eriphyla 35 9.5 06 37.1 +22 26 sJapan,e&sCN,India
    27 6:12-:18 432 Pythia 46 10.8 06 46.9 +26 14 BM,sVA,sOH,IL,SD,nOR
    29 15:00-:02 894 Erda 36 7.1 07 25.8 +04 27 AU-nQ'ld,nNT,neWA
    30 9:58-:07 410 Chloris 123 12.2 07 03.8 +24 7 e&nVA,DC,s&wMD,nWV,
          swPA,e&nOH,sMI-Detroit,nWI,nMN,sMB,SK,AB,nwBC,sYK,AK,ne-s.cen.Sib.
    31 6:00-:03 792 Metcalfia 60 12.1 05 45.5 +21 44 MB,SK,AB,MT,sWA,nwOR
    31 6:58-:65 208 Lacrimosa 41 9.0 09 03.1 +19 10 cFL,sLA,TX,seAZ,nwMX
    31 12:37-:41 102 Miriam 83 7.5 05 22.4 +16 07 MT,sAB,BC,sAK,Sib,KZ

    Notes for Individual Events:

    Dec. 7, Portlandia: The star is ZC 3 = SAO 108997, sp. A5. The path
    passes over Toronto, where Guy Nason is organizing a large effort to
    bracket the path and uncertainty zone, and the weather looks good.

    Dec. 10: Jean Lecacheux examined a digital sky survey image of the
    star and found that it is elongated, probably an unresolved close,
    approximately equal double. If so, there will be two paths probably
    well east and west of the updated prediction, and since the asteroid
    is a little brighter than either component individually, if there is
    an occultation, it will probably have a rather difficult to notice
    magnitude drop of only about 0.4.

    Dec. 11, Aeneas: The star is SAO 96708, spectral type F0. Aeneas
    is a Trojan asteroid.

    Dec. 12, van Gogh: The star is SAO 112613, sp. A0. The narrow path,
    with large uncertainty, also passes over sFI,sNO,seNF,sNB,sME,NH,VT,nNY,
    sON,sMI-Detroit,nIL(ORD),sNE, and Colorado (Boulder, very low).

    Dec. 12, Charis: The star is ZC 3368 = SAO 165409. Portland, OR is on
    the s. edge of the uncertainty zone, Seattle is at the n. limit, and
    Calgary is at the s. limit.

    Dec. 15, Wallenbergia: The star is SAO 98194 = HIP 43613, sp. G5.

    Dec. 16, Lindemania: The star is SAO 80067, spectral type A2.

    Dec. 16, Moira: The star is SAO 146975, spectral type F0.

    Dec. 17: The star is SAO 189203, spectral type G0.

    Dec. 18, Klymene: The magnitude drop will be 0.8.

    Dec. 18, Bratichuk: The star is SAO 77093 = HIP 24776, sp. A2.

    Dec. 22, Anchises is a Trojan asteroid.

    Dec. 22, Alphonsina: The star is SAO 40029 = HIP 23799, sp. F2. This
    is the brightest star occulted by an asteroid in Europe during 2003, so
    Europeans are planning a large, coordinated effort to observe it.

    Dec. 24, Circe: The magnitude drop will be 0.8.

    Dec. 29: The star is SAO 115429 = HIP 36049, spectral type K0.

    Dec. 31, Lacrimosa: The star is SAO 98314 = TYC 1397-01764-1.

    Dec. 31, Miriam: The star is SAO 94498, spectral type A0.
    ______

    For more about these events, see Steve Preston's site, URL above,
    for updated path maps and other details, and see the asteroidal
    occultation section of the main IOTA site at
    http://www.lunar-occultations.com/iota/asteroids/astrndx.htm
    for annotated versions of E. Goffin's good finder charts
    for North American events and links to sites covering
    other areas. For Europe, see also L. Vasta & J. Manek's site at
    http://mpocc.astro.cz/mp (but it is not working now; hopefully, it
    will be restored Monday).

    I just list the events in the table above; see the Web sites for
    the updated maps to see the closest approach time for your
    location, and more accurate coordinates of the star and its
    designation. You must display this message with a fixed-space
    font such as Courier for the columns of the table to line up.
    The U.T. time range is given, with only the minutes of the
    hour given for the end time (subtract 60 and add 1 to the hour
    for end minutes greater than 59).

    Good luck with YOUR observations of asteroidal occultations.

    David Dunham, 2003 December 6

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