Cora»OccDetail

Stellar Occultation by (52) Europa on 2023-09-23 (20:07:15 UT)

Event Details
Occultation UUID [and db] : 32670730-ddb4-11f0-547e-8eb9dfef9627 [observed] Occultation Date + Time : 2023-09-23 at 20:07:15 UT +/- 0.0 min [1] Object Designation : (52) Europa Star Designation : GDR3 4119724246550093696 Star Coordinates (ICRF) : RA = 17 44 00.0596, DE = -20 05 33.505 [2] Star Magnitudes : G = 11.71 mag, RP = 10.6 mag, BP = 12.99 mag Object Magnitude : V = 12.82 mag Estimated Magnitude Drop : 1.4 mag Estimated Max. Duration : 17.4 sec Speed of the shadow : 17.4 km/s Object Mean Diameter : 302.5 km (src: astorb) => apparent = 124 mas Apparent Motion : 0.4283 arcs/min @ PA = 102 deg Horizontal Parallax : 2.6230 arcs Dynamical Class : MBA Elongation to Moon & Sun : 19° (sunlit = 62%), Sun = 86° Cross-track uncertainty : 1.0 mas = 2 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.8 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#141 Note : FP:true Object is a <Gaia mass determination> target ! [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : 32670730-ddb4-11f0-547e-8eb9dfef9627 [observed]

 Occultation Date + Time   : 2023-09-23 at 20:07:15 UT +/- 0.0 min  [1]
 Object Designation        : (52) Europa
 Star Designation          : GDR3 4119724246550093696
 Star Coordinates (ICRF)   : RA = 17 44 00.0596, DE = -20 05 33.505  [2]
 Star Magnitudes           : G = 11.71 mag, RP = 10.6 mag, BP = 12.99 mag
 Object Magnitude          : V = 12.82 mag
 Estimated Magnitude Drop  : 1.4 mag
 Estimated Max. Duration   : 17.4 sec
 Speed of the shadow       : 17.4 km/s
 Object Mean Diameter      : 302.5 km  (src: astorb) => apparent = 124 mas
 Apparent Motion           : 0.4283 arcs/min @ PA = 102 deg
 Horizontal Parallax       : 2.6230 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 19° (sunlit = 62%), Sun = 86°
 Cross-track uncertainty   : 1.0 mas = 2 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.8 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#141
 Note                      : FP:true

 Object is a <Gaia mass determination> target !

 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

More Data and Informations

SiMDA \| 3D Asteroid Catalogue \| Johnston Archive \| Star at CDS (Vizier) \| JPL Small-Body Node \| Minor Planet Center \| Wikipedia

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Occultation Ground Track
Time[UT] \| Lat----CENTR----Lon \| Alt hh:mm:ss \| +DD.dddd +DDD.dddd \| deg ---------------------------------------------- 20:04:39 +54.9308 -061.2034 +12 157 +16 20:04:58 +51.2992 -054.3503 +17 164 +13 20:05:17 +48.6822 -048.9939 +20 169 +10 20:05:36 +46.6054 -044.3468 +23 173 +07 20:05:55 +44.8877 -040.1092 +25 178 +05 20:06:14 +43.4384 -036.1262 +26 182 +02 20:06:34 +42.2058 -032.3029 +27 186 -01 20:06:53 +41.1587 -028.5730 +28 190 -04 20:07:12 +40.2781 -024.8847 +28 194 -07 20:07:31 +39.5540 -021.1927 +28 198 -10 20:07:50 +38.9830 -017.4527 +28 202 -13 20:08:09 +38.5689 -013.6164 +27 206 -16 20:08:28 +38.3232 -009.6245 +26 210 -19 20:08:47 +38.2691 -005.3967 +24 214 -22 20:09:07 +38.4497 -000.8090 +22 218 -26 20:09:26 +38.9489 +004.3597 +18 223 -29 20:09:45 +39.9647 +010.6085 +14 227 -33 20:10:04 +42.2894 +019.9212 +07 234 -37 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 20:04:39   +54.9308  -061.2034   +12  157  +16 20:04:58   +51.2992  -054.3503   +17  164  +13 20:05:17   +48.6822  -048.9939   +20  169  +10 20:05:36   +46.6054  -044.3468   +23  173  +07 20:05:55   +44.8877  -040.1092   +25  178  +05 20:06:14   +43.4384  -036.1262   +26  182  +02 20:06:34   +42.2058  -032.3029   +27  186  -01 20:06:53   +41.1587  -028.5730   +28  190  -04 20:07:12   +40.2781  -024.8847   +28  194  -07 20:07:31   +39.5540  -021.1927   +28  198  -10 20:07:50   +38.9830  -017.4527   +28  202  -13 20:08:09   +38.5689  -013.6164   +27  206  -16 20:08:28   +38.3232  -009.6245   +26  210  -19 20:08:47   +38.2691  -005.3967   +24  214  -22 20:09:07   +38.4497  -000.8090   +22  218  -26 20:09:26   +38.9489  +004.3597   +18  223  -29 20:09:45   +39.9647  +010.6085   +14  227  -33 20:10:04   +42.2894  +019.9212   +07  234  -37

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +62.9913 -067.2919 +50.3024 -059.2001 +56.1179 -055.9007 +47.5089 -053.5231 +52.6780 -049.5231 +45.3070 -048.7141 +50.1797 -044.3726 +43.4840 -044.3972 +48.2028 -039.8188 +41.9369 -040.3893 +46.5805 -035.6064 +40.6078 -036.5830 +45.2287 -031.5978 +39.4611 -032.9073 +44.1001 -027.7043 +38.4745 -029.3097 +43.1676 -023.8597 +37.6339 -025.7479 +42.4168 -020.0073 +36.9316 -022.1843 +41.8436 -016.0914 +36.3651 -018.5823 +41.4539 -012.0496 +35.9368 -014.9025 +41.2657 -007.8012 +35.6549 -011.0984 +41.3162 -003.2279 +35.5355 -007.1101 +41.6808 +001.8750 +35.6070 -002.8514 +42.5345 +007.9504 +35.9197 +001.8152 +44.5135 +016.5733 +36.5737 +007.1476 +43.6911 +018.9222 +37.8176 +013.7740 Azimuth (Azm) measured from North to East.

Apply ephem. offset (O-C) in RA & DE and CTU:
CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.