IOTA/IOTA-ES occultation update for (393) Lampetia / TYC 5706-09041-1 event on 2023 Apr 28, 02:18 UT Visible from Europe, Africa Summary ------- On 2023 Apr 28 UT, the 129.2 km diameter asteroid (393) Lampetia will occult a 10.9 mag star in the constellation Scutum for observers along a path across Europe, Africa. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.37 mag to 11.93 mag (the magnitude of the asteroid) for at most 9.010 seconds. This update is based on, astrometry for the asteroid kindly provided by the IAU Minor Planet Center. This work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. The event at a glimpse ---------------------- * Rank: 99 * date and approx. time of event: 2023 Apr 28, 02:13 - 2023 Apr 28, 02:22 * geocentric midpoint of event [JD]: 2460062.59590683 * magnitude of target star: 10.92 * magnitude drop [mag]: 1.37 * estimated maximum duration [s]: 9.010 * Moon: 51 % sunlit, 148° distance * Sun: 113° distance * rough path description: Europe, Africa The occultation path -------------------- * approximate projected width [km]: 252 * 1 sigma uncertainty interval [path widths]: +/- 0.11 * 1 sigma uncertainty interval [seconds]: +/- 1.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.025, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.026", 0.003", 78°) * approx speed of asteroid's shadow [km/s]: 14.3356 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5706-09041-1 by 393 Lampetia on 2023 Apr 28 Centre Star Star Sun Path Limits Error Limits Alt E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Longitude Longitude Longitude Longitude .. .. .. 75 0 0 .. .. .... .. .. .. - 21 0 2 ... .. .. - 19 34 0 ... .. .. .... - 22 59 28 74 0 0 2 21 51.1 1 125 -2 - 16 54 40 ... .. .. - 15 42 40 ... .. .. .... - 18 55 40 73 0 0 2 21 50.2 3 129 -2 - 13 45 46 - 25 3 17 - 12 42 58 - 26 36 9 1.26 - 15 48 6 72 0 0 2 21 48.9 4 132 -3 - 11 15 13 - 20 58 45 - 10 19 3 - 22 14 6 1.42 - 13 18 27 71 0 0 2 21 47.2 6 134 -4 - 9 12 46 - 17 51 20 - 8 21 40 - 18 56 2 1.49 - 11 16 31 70 0 0 2 21 45.2 7 136 -4 - 7 31 51 - 15 21 56 - 6 44 46 - 16 19 19 1.53 - 9 35 48 69 0 0 2 21 43.0 8 138 -5 - 6 8 0 - 13 20 7 - 5 24 13 - 14 12 5 1.56 - 8 11 56 68 0 0 2 21 40.4 9 139 -6 - 4 58 2 - 11 39 25 - 4 17 0 - 12 27 8 1.57 - 7 1 47 67 0 0 2 21 37.7 10 140 -6 - 3 59 33 - 10 15 26 - 3 20 51 - 10 59 45 1.58 - 6 3 0 66 0 0 2 21 34.7 11 141 -7 - 3 10 45 - 9 5 5 - 2 34 4 - 9 46 34 1.59 - 5 13 51 65 0 0 2 21 31.4 12 141 -8 - 2 30 13 - 8 6 3 - 1 55 18 - 8 45 10 1.60 - 4 32 55 64 0 0 2 21 28.0 13 142 -8 - 1 56 49 - 7 16 36 - 1 23 28 - 7 53 41 1.61 - 3 59 6 63 0 0 2 21 24.3 14 142 -9 - 1 29 40 - 6 35 22 - 0 57 41 - 7 10 41 1.61 - 3 31 32 62 0 0 2 21 20.4 15 143 -10 - 1 8 0 - 6 1 15 - 0 37 15 - 6 35 2 1.61 - 3 9 29 61 0 0 2 21 16.3 16 143 -11 - 0 51 13 - 5 33 24 - 0 21 33 - 6 5 49 1.62 - 2 52 19 60 0 0 2 21 12.0 17 143 -11 - 0 38 47 - 5 11 4 - 0 10 7 - 5 42 18 1.62 - 2 39 34 59 0 0 2 21 7.5 18 143 -12 - 0 30 18 - 4 53 41 - 0 2 31 - 5 23 51 1.62 - 2 30 48 58 0 0 2 21 2.8 18 143 -13 - 0 25 23 - 4 40 45 0 1 36 - 5 9 57 1.63 - 2 25 39 57 0 0 2 20 57.9 19 143 -14 - 0 23 43 - 4 31 51 0 2 31 - 5 0 11 1.63 - 2 23 49 56 0 0 2 20 52.8 20 143 -15 - 0 25 4 - 4 26 38 0 0 30 - 4 54 11 1.63 - 2 25 3 55 0 0 2 20 47.5 21 142 -16 - 0 29 11 - 4 24 47 - 0 4 14 - 4 51 38 -1.63 - 2 29 8 54 0 0 2 20 42.0 22 142 -16 - 0 35 53 - 4 26 5 - 0 11 29 - 4 52 17 -1.63 - 2 35 51 53 0 0 2 20 36.3 22 142 -17 - 0 45 0 - 4 30 17 - 0 21 7 - 4 55 55 -1.64 - 2 45 5 52 0 0 2 20 30.4 23 141 -18 - 0 56 24 - 4 37 13 - 0 32 58 - 5 2 19 -1.64 - 2 56 39 51 0 0 2 20 24.3 24 141 -19 - 1 9 57 - 4 46 42 - 0 46 56 - 5 11 21 -1.64 - 3 10 27 50 0 0 2 20 18.0 24 140 -20 - 1 25 32 - 4 58 38 - 1 2 55 - 5 22 51 -1.64 - 3 26 24 49 0 0 2 20 11.5 25 139 -21 - 1 43 6 - 5 12 54 - 1 20 50 - 5 36 44 -1.64 - 3 44 24 48 0 0 2 20 4.9 26 139 -22 - 2 2 33 - 5 29 23 - 1 40 36 - 5 52 52 -1.65 - 4 4 22 47 0 0 2 19 58.0 26 138 -23 - 2 23 51 - 5 48 1 - 2 2 10 - 6 11 13 -1.65 - 4 26 17 46 0 0 2 19 51.0 27 137 -24 - 2 46 55 - 6 8 44 - 2 25 29 - 6 31 40 -1.65 - 4 50 5 45 0 0 2 19 43.8 27 137 -25 - 3 11 44 - 6 31 30 - 2 50 32 - 6 54 12 -1.65 - 5 15 44 44 0 0 2 19 36.4 28 136 -26 - 3 38 16 - 6 56 15 - 3 17 16 - 7 18 45 -1.65 - 5 43 12 43 0 0 2 19 28.8 28 135 -27 - 4 6 30 - 7 22 59 - 3 45 40 - 7 45 19 -1.66 - 6 12 31 42 0 0 2 19 21.0 29 134 -28 - 4 36 27 - 7 51 41 - 4 15 45 - 8 13 54 -1.66 - 6 43 40 41 0 0 2 19 13.1 29 133 -29 - 5 8 5 - 8 22 22 - 4 47 29 - 8 44 28 -1.66 - 7 16 38 40 0 0 2 19 4.9 29 132 -30 - 5 41 26 - 8 55 1 - 5 20 55 - 9 17 4 -1.66 - 7 51 29 39 0 0 2 18 56.6 30 131 -31 - 6 16 30 - 9 29 41 - 5 56 3 - 9 51 42 -1.67 - 8 28 13 38 0 0 2 18 48.1 30 130 -32 - 6 53 20 - 10 6 24 - 6 32 56 - 10 28 25 -1.67 - 9 6 54 37 0 0 2 18 39.4 30 129 -33 - 7 31 59 - 10 45 12 - 7 11 35 - 11 7 16 -1.67 - 9 47 36 36 0 0 2 18 30.6 30 128 -35 - 8 12 30 - 11 26 10 - 7 52 3 - 11 48 19 -1.68 - 10 30 21 35 0 0 2 18 21.5 31 127 -36 - 8 54 55 - 12 9 23 - 8 34 25 - 12 31 39 -1.68 - 11 15 16 34 0 0 2 18 12.3 31 126 -37 - 9 39 20 - 12 54 57 - 9 18 45 - 13 17 23 -1.68 - 12 2 27 33 0 0 2 18 2.9 31 125 -38 - 10 25 51 - 13 42 59 - 10 5 7 - 14 5 38 -1.69 - 12 52 2 32 0 0 2 17 53.3 31 123 -39 - 11 14 33 - 14 33 39 - 10 53 40 - 14 56 33 -1.69 - 13 44 10 31 0 0 2 17 43.5 31 122 -41 - 12 5 36 - 15 27 6 - 11 44 30 - 15 50 20 -1.69 - 14 39 1 30 0 0 2 17 33.6 30 121 -42 - 12 59 8 - 16 23 35 - 12 37 47 - 16 47 13 -1.70 - 15 36 50 29 0 0 2 17 23.4 30 120 -43 - 13 55 21 - 17 23 20 - 13 33 41 - 17 47 27 -1.70 - 16 37 50 28 0 0 2 17 13.0 30 119 -44 - 14 54 27 - 18 26 41 - 14 32 25 - 18 51 24 -1.70 - 17 42 23 27 0 0 2 17 2.5 29 117 -46 - 15 56 43 - 19 34 2 - 15 34 14 - 19 59 27 -1.71 - 18 50 50 26 0 0 2 16 51.7 29 116 -47 - 17 2 26 - 20 45 52 - 16 39 26 - 21 12 8 -1.71 - 20 3 42 25 0 0 2 16 40.7 28 115 -49 - 18 12 1 - 22 2 48 - 17 48 22 - 22 30 6 -1.72 - 21 21 33 24 0 0 2 16 29.5 28 113 -50 - 19 25 56 - 23 25 40 - 19 1 32 - 23 54 15 -1.72 - 22 45 13 23 0 0 2 16 18.0 27 112 -51 - 20 44 48 - 24 55 32 - 20 19 29 - 25 25 44 -1.73 - 24 15 43 22 0 0 2 16 6.2 26 111 -53 - 22 9 22 - 26 33 55 - 21 42 56 - 27 6 13 -1.73 - 25 54 31 21 0 0 2 15 54.1 25 109 -54 - 23 40 40 - 28 23 2 - 23 12 51 - 28 58 8 -1.74 - 27 43 43 20 0 0 2 15 41.7 23 108 -55 - 25 20 8 - 30 26 18 - 24 50 33 - 31 5 25 -1.75 - 29 46 32 19 0 0 2 15 28.8 22 107 -57 - 27 9 45 - 32 49 42 - 26 37 53 - 33 35 5 -1.77 Latitude Latitude Latitude Latitude - 30 0 0 18 53 53 2 15 27.5 21 107 -57 17 38 50 20 12 8 17 22 46 20 29 46 -1.71 - 31 0 0 18 27 43 2 15 21.7 21 106 -57 17 13 34 19 44 58 16 57 40 20 2 23 -1.74 - 32 0 0 18 3 18 2 15 16.1 20 106 -58 16 49 57 19 19 38 16 34 13 19 36 50 -1.74 - 33 0 0 17 40 35 2 15 10.8 19 105 -58 16 27 58 18 56 5 16 12 23 19 13 4 -1.74 - 34 0 0 17 19 31 2 15 5.8 18 104 -59 16 7 35 18 34 16 15 52 9 18 51 4 -1.74 - 35 0 0 17 0 6 2 15 1.1 17 104 -59 15 48 47 18 14 8 15 33 28 18 30 47 -1.74 - 36 0 0 16 42 16 2 14 56.6 16 104 -59 15 31 31 17 55 41 15 16 20 18 12 10 -1.75 - 37 0 0 16 26 1 2 14 52.4 16 103 -59 15 15 47 17 38 51 15 0 42 17 55 13 -1.75 - 38 0 0 16 11 18 2 14 48.4 15 103 -60 15 1 33 17 23 38 14 46 33 17 39 52 -1.75 - 39 0 0 15 58 8 2 14 44.7 14 102 -60 14 48 47 17 9 59 14 33 52 17 26 7 -1.75 - 40 0 0 15 46 27 2 14 41.2 13 102 -60 14 37 29 16 57 54 14 22 39 17 13 56 -1.76 - 41 0 0 15 36 16 2 14 38.0 12 102 -60 14 27 37 16 47 21 14 12 51 17 3 18 -1.76 - 42 0 0 15 27 34 2 14 35.0 11 101 -60 14 19 11 16 38 20 14 4 29 16 54 12 -1.76 - 43 0 0 15 20 18 2 14 32.3 10 101 -59 14 12 10 16 30 48 13 57 31 16 46 37 -1.77 - 44 0 0 15 14 30 2 14 29.8 9 101 -59 14 6 34 16 24 46 13 51 57 16 40 32 -1.78 - 45 0 0 15 10 7 2 14 27.6 8 100 -59 14 2 21 16 20 13 13 47 46 16 35 56 -1.78 - 46 0 0 15 7 10 2 14 25.6 7 100 -59 13 59 31 16 17 8 13 44 57 16 32 49 -1.80 - 47 0 0 15 5 37 2 14 23.9 6 100 -58 13 58 4 16 15 30 13 43 31 16 31 10 -1.81 - 48 0 0 15 5 30 2 14 22.4 5 99 -58 13 57 59 16 15 20 13 43 27 16 30 59 -1.83 - 49 0 0 15 6 47 2 14 21.2 4 99 -57 13 59 16 16 16 36 13 44 44 16 32 15 -1.86 - 50 0 0 15 9 28 2 14 20.2 3 99 -57 14 1 55 16 19 19 13 47 23 16 34 59 -1.91 - 51 0 0 15 13 33 2 14 19.5 2 99 -56 14 5 56 16 23 29 13 51 23 16 39 9 -2.00 - 52 0 0 15 19 2 2 14 19.0 1 98 -56 14 11 19 16 29 5 13 56 45 16 44 47 -2.21 - 53 0 0 15 25 56 2 14 18.7 0 98 -55 14 18 4 16 36 8 14 3 28 16 51 52 -3.36 Uncertainty in time = +/- 2 secs Prediction of 2023 Mar 1.1 Data for the target star ------------------------ * name: TYC 5706-09041-1 * constellation : Scutum * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 53 50.8028 DE: -07 46 09.973 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 53 50.8028 DE: -07 46 09.973 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 10.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (393) Lampetia asteroid class: approx. diameter [km]: 129 approx. diameter ["]: 0.127 distance from Earth [AU]: 1.40320 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#126 date of fit: 2023 Feb 07 source of used astrometry: MPC, JPL number of used observations: 0 number of rejected observations: 0 time covered by the observations: 1800 Jan 01 - 1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.026", 0.003", 78.4° remarks: * orbital elements for (393)Lampetia : Mean anomaly = 336.7902407449 deg Arg. of pericenter = 90.8674367213 deg Long. of node = 212.3931348734 deg Inclination = 14.8773235829 deg Eccentricity = 0.3299808591 Semimajor axis = 2.7797058340 AU Perihelion dist = 1.8624561150 AU Mag: H = 8.43, G = 0.15 Epoch of elements : MJD 60062.09590278 TDT (2023 Apr 28.0959) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1262023Feb07,9.01,2023,4,28,2.301764,-0.593199,0.621218,5.851297,5.588664,-0.004688,-0.001011,0.000001,0.000000 33.4468,-7.7424,144.88,14.03,False TYC 5706-09041-1,18.89744520,-7.7694369,0.00,10.92,0.00,0.0,0,,18.91848318,-7.7423524,1.37,0.00,0,0,0 393,Lampetia,11.93,129.2,1.4032,0,0,2.467,35.03,,8.4,0 0,336.7698,2023,4,28,90.8674,212.3931,14.8773,0.32998,2.77971,1.86246,8.45,5.0,0.15 1.110,0.0257,0.0033,78,0.0139,Known errors,-1.00,-1,-1,-1 20230428_9041-1,60004.06 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Mar 01, 01:21 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org