Update for (1010) Marlene - September 14/15, 2003

Update computed by Jan Manek; issued 13 Sep 2003 19:56 +0200 (CEST)

Jan Manek's update

                   IOTA/IOTA-ES occultation update for
         (1010) Marlene / TAC -03 00197 on September 14/15, 2003
            visible from Finland, Sweden, N Denmark, England,
                   Dominican Rep., Haiti and Jamaica


Summary

In the night of September 14/15, 2003 a faint 11.7 mag star TAC -03 00197 will be occulted by a 45 km asteroid (1010) Marlene. This update is based on USNO/Flagstaff astrometry for the asteroid and UCAC2 star position.

The updated path shows ~10 path width north shift with time ~1.6 minutes later compared to Edwin Goffin's nominal prediction.

Updated path runs due to south shift over middle Finland ~1:06.5 UT, south Sweden ~1:07.2 UT, north Denmark ~1:07.7 UT, England with London on south limit ~1:08.8 UT and after crossing Atlantic ocean follows Dominican Republic with Haiti ~1:19.8 UT and Jamaica ~1:20.4 UT. Please check the path chart for details.

Clear sky and good luck !!!

The event at one glimpse: * date and approx. UT time of event: September 15, 2003 @ 01:09 UT (Europe) 01:20 UT (Caribean area) * magnitude of target star: 11.7 * magnitude drop [mag]: 2.4 * estimated maximum duration [s]: 4.7 * path description: given above * Goffin's original chart reference: A03_0966 The occultation path: * approximate ground width [km]: 65 * uncertainty [path widths]: 2.8 * 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: TAC -03 00197 = GSC 4668-00713 * constellation: Cetus * J2000 position [h,m,s; o,',"]: 00h 29m 50.2321s; -03o 30' 03.349" * position source: UCAC2 * estimated accuracy ["]: 0.04" (0.03", 0.02") * V mag [mag]: 11.65 * B-V [mag]: +0.60 * remarks: Target star is in west Catus, about 5.9 degrees northeast of 3.5 mag star iota Ceti = SAO 128694 or 6' east of 7.0 mag star SAO 128784. !!! 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 GUIDE8): * 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: Second chart shows 30' blowup to show correctly the star in field.

Data for the minor planet: * general information: number, name: (1010) Marlene approx. diameter [km]: 45 * orbital information orbit source: calculation Manek source of used astrometry: USNO/Flagstaff (Ron Stone) number of used observations: 80 USNO number of rejected observations: 17 USNO time covered by the observations: 1998 07 28 - 2002 07 07 rms residuals ["] (RA,DE): 0.09", 0.11" estimated positional accuracy at epoch of event ["]: 0.09", 0.11" remarks: No recent opposition astrometry. Data for the event: * UT date and time of least geocentric approach: 01:13.3 UT * approx. V mag of minor planet at event [mag]: 14.0 * geocentric parallax of minor planet ["]: 5.333 * magnitude drop [mag]: 2.4 * estimated maximum duration [s]: 4.7 * apparent motion of minor planet ["/h]: 29.12 * angular distance to moon, phase of moon [deg,%]: 36, 83% * remarks: Elements for WinOccult: ============ cut here =========================================== 2003 Sep 15 1010 Marlene 1h 13.3m UT 11.7 0 29 50.232- 3 30 3.35TAC -03 00197 12.4 14.0 45 4.7 1.649 -1.722 -13.55 -4.456 -3.496 160.56 3.25 1.2211 -.33126 .63055 -4.83104 -2.54051 -0.00147 0.00000 2000 346.7479912003 9 8.00000275.92666899.038216 3.906854 0.104484552.931030032.6247826710.45 0.15 RATE 1.9641450 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000 ============ cut here =========================================== Calculator(s): Jan Manek

Updated path location for (1010) Marlene on September 14/15, 2003

Updated path location for (1010) Marlene on September 14/15, 2003

Path coordinates: Centre Star Star Sun Path Limits Error Limits E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 Latitude Latitude Latitude Latitude ...................................... shortened ............................................. o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " 49 0 0 69 53 8 1 5 48 9 232 -5 70 12 58 69 33 25 72 8 44 67 43 24 48 0 0 69 41 52 1 5 49 9 231 -5 70 1 48 69 22 3 71 58 12 67 31 29 47 0 0 69 30 15 1 5 50 10 231 -6 69 50 18 69 10 20 71 47 19 67 19 13 46 0 0 69 18 16 1 5 51 10 230 -6 69 38 26 68 58 15 71 36 6 67 6 36 45 0 0 69 5 56 1 5 52 11 229 -6 69 26 12 68 45 49 71 24 31 66 53 36 44 0 0 68 53 14 1 5 54 11 228 -7 69 13 36 68 33 0 71 12 35 66 40 13 43 0 0 68 40 9 1 5 55 11 227 -7 69 0 37 68 19 49 71 0 16 66 26 28 42 0 0 68 26 40 1 5 56 12 226 -8 68 47 16 68 6 14 70 47 35 66 12 20 41 0 0 68 12 49 1 5 58 12 225 -8 68 33 31 67 52 16 70 34 31 65 57 47 40 0 0 67 58 34 1 5 59 13 224 -9 68 19 22 67 37 54 70 21 3 65 42 51 39 0 0 67 43 54 1 6 1 13 223 -9 68 4 49 67 23 8 70 7 11 65 27 31 38 0 0 67 28 50 1 6 3 14 222 -9 67 49 52 67 7 58 69 52 55 65 11 46 37 0 0 67 13 21 1 6 5 14 221 -10 67 34 29 66 52 22 69 38 13 64 55 36 36 0 0 66 57 26 1 6 7 15 220 -10 67 18 41 66 36 21 69 23 6 64 39 1 35 0 0 66 41 6 1 6 9 15 219 -11 67 2 27 66 19 54 69 7 34 64 22 0 34 0 0 66 24 19 1 6 11 15 218 -11 66 45 48 66 3 1 68 51 34 64 4 33 33 0 0 66 7 6 1 6 13 16 217 -12 66 28 41 65 45 42 68 35 8 63 46 40 32 0 0 65 49 26 1 6 15 16 216 -12 66 11 7 65 27 55 68 18 15 63 28 20 31 0 0 65 31 19 1 6 17 17 215 -13 65 53 7 65 9 42 68 0 54 63 9 34 30 0 0 65 12 44 1 6 20 17 214 -13 65 34 38 64 51 1 67 43 5 62 50 21 29 0 0 64 53 42 1 6 23 18 214 -14 65 15 42 64 31 53 67 24 47 62 30 40 28 0 0 64 34 11 1 6 25 18 213 -14 64 56 17 64 12 16 67 6 1 62 10 32 27 0 0 64 14 12 1 6 28 19 212 -15 64 36 24 63 52 11 66 46 45 61 49 57 26 0 0 63 53 44 1 6 31 19 211 -16 64 16 2 63 31 38 66 27 0 61 28 54 25 0 0 63 32 48 1 6 34 20 210 -16 63 55 12 63 10 36 66 6 45 61 7 23 24 0 0 63 11 22 1 6 37 20 209 -17 63 33 52 62 49 5 65 46 0 60 45 24 23 0 0 62 49 28 1 6 41 21 208 -17 63 12 2 62 27 5 65 24 44 60 22 57 22 0 0 62 27 4 1 6 44 22 207 -18 62 49 44 62 4 36 65 2 58 60 0 2 21 0 0 62 4 11 1 6 48 22 206 -18 62 26 56 61 41 38 64 40 41 59 36 39 20 0 0 61 40 49 1 6 52 23 205 -19 62 3 38 61 18 12 64 17 53 59 12 49 19 0 0 61 16 57 1 6 56 23 204 -20 61 39 51 60 54 16 63 54 34 58 48 30 18 0 0 60 52 36 1 7 0 24 203 -20 61 15 34 60 29 51 63 30 44 58 23 44 17 0 0 60 27 46 1 7 4 24 202 -21 60 50 48 60 4 57 63 6 23 57 58 30 16 0 0 60 2 27 1 7 8 25 201 -21 60 25 33 59 39 34 62 41 31 57 32 49 15 0 0 59 36 40 1 7 13 25 200 -22 59 59 49 59 13 43 62 16 9 57 6 40 14 0 0 59 10 23 1 7 18 26 199 -23 59 33 36 58 47 24 61 50 16 56 40 6 13 0 0 58 43 39 1 7 23 27 198 -23 59 6 54 58 20 37 61 23 52 56 13 4 12 0 0 58 16 27 1 7 28 27 197 -24 58 39 44 57 53 22 60 56 58 55 45 37 11 0 0 57 48 47 1 7 33 28 196 -25 58 12 7 57 25 40 60 29 34 55 17 44 10 0 0 57 20 40 1 7 38 28 195 -25 57 44 2 56 57 32 60 1 42 54 49 27 9 0 0 56 52 7 1 7 44 29 194 -26 57 15 30 56 28 57 59 33 20 54 20 45 8 0 0 56 23 8 1 7 50 30 193 -27 56 46 32 55 59 57 59 4 30 53 51 39 7 0 0 55 53 44 1 7 56 30 192 -27 56 17 9 55 30 32 58 35 12 53 22 9 6 0 0 55 23 55 1 8 2 31 191 -28 55 47 21 55 0 43 58 5 27 52 52 18 5 0 0 54 53 43 1 8 8 31 190 -29 55 17 8 54 30 30 57 35 15 52 22 4 4 0 0 54 23 7 1 8 15 32 188 -30 54 46 32 53 59 54 57 4 39 51 51 30 3 0 0 53 52 9 1 8 22 33 187 -30 54 15 34 53 28 57 56 33 37 51 20 35 2 0 0 53 20 50 1 8 29 33 186 -31 53 44 14 52 57 39 56 2 12 50 49 21 1 0 0 52 49 10 1 8 36 34 185 -32 53 12 33 52 26 0 55 30 23 50 17 49 0 0 0 52 17 11 1 8 43 34 184 -32 52 40 33 51 54 3 54 58 13 49 45 59 - 1 0 0 51 44 54 1 8 51 35 183 -33 52 8 13 51 21 47 54 25 43 49 13 53 - 2 0 0 51 12 19 1 8 58 35 182 -34 51 35 37 50 49 15 53 52 52 48 41 32 - 3 0 0 50 39 28 1 9 6 36 180 -35 51 2 43 50 16 26 53 19 43 48 8 56 - 4 0 0 50 6 22 1 9 14 37 179 -35 50 29 34 49 43 23 52 46 17 47 36 7 - 5 0 0 49 33 2 1 9 22 37 178 -36 49 56 11 49 10 6 52 12 35 47 3 6 - 6 0 0 48 59 29 1 9 31 38 177 -37 49 22 35 48 36 36 51 38 38 46 29 53 - 7 0 0 48 25 45 1 9 39 38 176 -37 48 48 47 48 2 56 51 4 27 45 56 31 - 8 0 0 47 51 50 1 9 48 39 174 -38 48 14 49 47 29 5 50 30 4 45 23 0 - 9 0 0 47 17 47 1 9 57 39 173 -39 47 40 41 46 55 5 49 55 30 44 49 21 - 10 0 0 46 43 35 1 10 6 40 172 -40 47 6 25 46 20 58 49 20 47 44 15 36 - 11 0 0 46 9 17 1 10 15 40 170 -40 46 32 2 45 46 44 48 45 56 43 41 46 - 12 0 0 45 34 54 1 10 25 40 169 -41 45 57 34 45 12 25 48 10 57 43 7 51 ...................................... shortened ............................................. - 64 0 0 21 9 48 1 19 0 28 106 -41 21 27 51 20 51 50 23 12 48 19 11 15 - 65 0 0 20 53 50 1 19 7 27 106 -41 21 11 51 20 35 55 22 56 29 18 55 36 - 66 0 0 20 38 28 1 19 14 26 105 -40 20 56 26 20 20 36 22 40 46 18 40 32 - 67 0 0 20 23 42 1 19 21 26 104 -39 20 41 37 20 5 53 22 25 40 18 26 4 - 68 0 0 20 9 32 1 19 27 25 104 -38 20 27 24 19 51 45 22 11 12 18 12 11 - 69 0 0 19 55 58 1 19 34 24 103 -38 20 13 48 19 38 14 21 57 20 17 58 53 - 70 0 0 19 43 1 1 19 40 23 103 -37 20 0 49 19 25 20 21 44 6 17 46 11 - 71 0 0 19 30 41 1 19 46 22 102 -36 19 48 26 19 13 2 21 31 30 17 34 6 - 72 0 0 19 18 58 1 19 51 21 102 -35 19 36 41 19 1 21 21 19 32 17 22 36 - 73 0 0 19 7 52 1 19 57 20 101 -34 19 25 33 18 50 17 21 8 12 17 11 43 - 74 0 0 18 57 24 1 20 2 20 101 -34 19 15 3 18 39 50 20 57 31 17 1 26 - 75 0 0 18 47 33 1 20 7 19 101 -33 19 5 10 18 30 1 20 47 27 16 51 46 - 76 0 0 18 38 19 1 20 12 18 100 -32 18 55 55 18 20 49 20 38 3 16 42 42 - 77 0 0 18 29 44 1 20 17 17 100 -31 18 47 18 18 12 15 20 29 17 16 34 16 - 78 0 0 18 21 46 1 20 21 16 99 -30 18 39 19 18 4 19 20 21 11 16 26 27 - 79 0 0 18 14 27 1 20 25 15 99 -29 18 31 59 17 57 1 20 13 43 16 19 15 - 80 0 0 18 7 46 1 20 29 14 99 -28 18 25 17 17 50 21 20 6 55 16 12 41 - 81 0 0 18 1 44 1 20 33 13 98 -27 18 19 14 17 44 20 20 0 46 16 6 45 - 82 0 0 17 56 20 1 20 36 12 98 -27 18 13 49 17 38 57 19 55 17 16 1 26 - 83 0 0 17 51 35 1 20 40 12 97 -26 18 9 4 17 34 12 19 50 28 15 56 45 - 84 0 0 17 47 29 1 20 43 11 97 -25 18 4 57 17 30 7 19 46 18 15 52 42 - 85 0 0 17 44 2 1 20 45 10 97 -24 18 1 30 17 26 40 19 42 49 15 49 17 - 86 0 0 17 41 15 1 20 48 9 96 -23 17 58 42 17 23 53 19 39 59 15 46 31 - 87 0 0 17 39 6 1 20 50 8 96 -22 17 56 33 17 21 44 19 37 51 15 44 23 - 88 0 0 17 37 37 1 20 52 7 96 -21 17 55 5 17 20 15 19 36 22 15 42 54 - 89 0 0 17 36 48 1 20 54 6 96 -20 17 54 15 17 19 26 19 35 34 15 42 3 - 90 0 0 17 36 38 1 20 55 5 95 -19 17 54 6 17 19 16 19 35 27 15 41 51 - 91 0 0 17 37 9 1 20 56 4 95 -18 17 54 37 17 19 46 19 36 1 15 42 18 ...................................... 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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