Stellar Occultation by (177) Irma on 2012-02-18 (16:36:13 UT)
Event Details
Occultation UUID [and db] : 44dab222-b211-4fe5-bb94-770868a4b4b4 [observed]
Occultation Date + Time : 2012-02-18 at 16:36:13 UT +/- 0.03 min [1]
Object Designation : (177) Irma
Star Designation : GDR3 3428778705725363328
Star Coordinates (ICRF) : RA = 05 40 15.7732, DE = +24 57 55.422 [2]
Star Magnitudes : G = 9.16 mag, RP = 8.77 mag, BP = 9.39 mag
Object Magnitude : V = 14.09 mag
Estimated Magnitude Drop : 4.9 mag
Estimated Max. Duration : 12.5 sec
Object Mean Diameter : 73 km (src: astorb)
Orbital Class : MBA
Speed of the shadow : 5.9 km/s
Elongation to Moon & Sun : 155° (sunlit = 11%), Sun = 116°
Cross-track uncertainty : 0.7 mas = 0 km = 0.01 path-width (1-sig)
RUWE and duplicate source : 3.34 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#115
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
(If error 404: link not valid which means no data available)
Aladin Lite direct link (has Gaia overlay)
Occultation Ground Track
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Time[UT] | Lat----CENTR----Lon | Alt Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon
hh:mm:ss | +DD.dddd +DDD.dddd | deg deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd
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16:21:57 +42.4547 -051.1386 +08 063 +35 +41.9356 -053.2449 +42.8101 -049.3545
16:22:10 +44.3103 -047.2293 +11 066 +32 +44.0975 -048.7505 +44.4638 -045.8261
16:22:24 +45.7221 -044.1618 +14 068 +30 +45.6308 -045.4606 +45.7788 -042.9339
16:22:38 +46.9051 -041.5127 +16 070 +29 +46.8852 -042.6862 +46.9009 -040.3907
16:22:51 +47.9409 -039.1220 +18 072 +27 +47.9702 -040.2125 +47.8933 -038.0728
16:23:05 +48.8712 -036.9086 +20 074 +25 +48.9376 -037.9388 +48.7900 -035.9136
16:23:19 +49.7205 -034.8248 +21 076 +24 +49.8164 -035.8085 +49.6121 -033.8725
16:23:32 +50.5047 -032.8397 +23 078 +23 +50.6252 -033.7858 +50.3735 -031.9222
16:23:46 +51.2348 -030.9320 +24 080 +21 +51.3764 -031.8467 +51.0839 -030.0439
16:24:00 +51.9189 -029.0861 +25 081 +20 +52.0788 -029.9738 +51.7506 -028.2236
16:24:13 +52.5628 -027.2904 +27 083 +19 +52.7391 -028.1543 +52.3790 -026.4506
16:24:27 +53.1712 -025.5359 +28 085 +18 +53.3624 -026.3785 +52.9734 -024.7167
16:24:40 +53.7479 -023.8155 +29 086 +17 +53.9526 -024.6386 +53.5371 -023.0152
16:24:54 +54.2957 -022.1235 +30 088 +16 +54.5129 -022.9283 +54.0730 -021.3408
16:25:08 +54.8170 -020.4550 +31 090 +15 +55.0459 -021.2427 +54.5832 -019.6892
16:25:21 +55.3139 -018.8063 +32 091 +14 +55.5536 -019.5775 +55.0696 -018.0565
16:25:35 +55.7880 -017.1740 +33 093 +13 +56.0379 -017.9293 +55.5339 -016.4397
16:25:49 +56.2406 -015.5553 +34 095 +12 +56.5002 -016.2951 +55.9772 -014.8363
16:26:02 +56.6731 -013.9478 +35 097 +11 +56.9418 -014.6724 +56.4009 -013.2439
16:26:16 +57.0863 -012.3497 +35 098 +10 +57.3638 -013.0591 +56.8057 -011.6607
16:26:30 +57.4813 -010.7590 +36 100 +09 +57.7671 -011.4533 +57.1927 -010.0850
16:26:43 +57.8587 -009.1745 +37 102 +08 +58.1525 -009.8535 +57.5625 -008.5155
16:26:57 +58.2193 -007.5946 +38 104 +07 +58.5207 -008.2583 +57.9157 -006.9508
16:27:11 +58.5635 -006.0185 +39 106 +06 +58.8722 -006.6666 +58.2529 -005.3900
16:27:24 +58.8920 -004.4451 +39 107 +05 +59.2077 -005.0774 +58.5746 -003.8322
16:27:38 +59.2051 -002.8737 +40 109 +04 +59.5275 -003.4899 +58.8813 -002.2766
16:27:52 +59.5033 -001.3035 +41 111 +03 +59.8322 -001.9033 +59.1732 -000.7227
16:28:05 +59.7869 +000.2658 +41 113 +02 +60.1219 -000.3172 +59.4509 +000.8302
16:28:19 +60.0562 +001.8349 +42 115 +02 +60.3972 +001.2690 +59.7145 +002.3824
16:28:32 +60.3115 +003.4039 +43 117 +01 +60.6582 +002.8556 +59.9643 +003.9342
16:28:46 +60.5531 +004.9732 +43 119 +00 +60.9052 +004.4428 +60.2006 +005.4860
16:29:00 +60.7811 +006.5430 +44 121 -01 +61.1384 +006.0310 +60.4236 +007.0377
16:29:13 +60.9958 +008.1132 +44 123 -02 +61.3580 +007.6200 +60.6336 +008.5896
16:29:27 +61.1973 +009.6841 +45 125 -03 +61.5643 +009.2100 +60.8306 +010.1417
16:29:41 +61.3859 +011.2554 +45 127 -03 +61.7574 +010.8010 +61.0148 +011.6939
16:29:54 +61.5617 +012.8271 +46 129 -04 +61.9374 +012.3927 +61.1865 +013.2462
16:30:08 +61.7248 +014.3991 +46 131 -05 +62.1046 +013.9852 +61.3457 +014.7983
16:30:22 +61.8753 +015.9712 +47 133 -06 +62.2589 +015.5780 +61.4927 +016.3502
16:30:35 +62.0135 +017.5430 +47 135 -06 +62.4006 +017.1710 +61.6274 +017.9015
16:30:49 +62.1394 +019.1144 +48 137 -07 +62.5298 +018.7638 +61.7501 +019.4520
16:31:03 +62.2531 +020.6849 +48 140 -08 +62.6466 +020.3561 +61.8608 +021.0014
16:31:16 +62.3547 +022.2542 +48 142 -09 +62.7511 +021.9474 +61.9597 +022.5494
16:31:30 +62.4444 +023.8219 +49 144 -10 +62.8435 +023.5374 +62.0469 +024.0955
16:31:44 +62.5223 +025.3876 +49 146 -10 +62.9237 +025.1256 +62.1225 +025.6395
16:31:57 +62.5884 +026.9508 +50 148 -11 +62.9920 +026.7115 +62.1866 +027.1808
16:32:11 +62.6430 +028.5111 +50 151 -12 +63.0485 +028.2946 +62.2393 +028.7190
16:32:24 +62.6860 +030.0680 +50 153 -12 +63.0932 +029.8745 +62.2807 +030.2538
16:32:38 +62.7176 +031.6210 +51 155 -13 +63.1263 +031.4505 +62.3109 +031.7847
16:32:52 +62.7379 +033.1696 +51 157 -14 +63.1478 +033.0221 +62.3301 +033.3111
16:33:05 +62.7471 +034.7134 +51 160 -15 +63.1580 +034.5889 +62.3383 +034.8327
16:33:19 +62.7452 +036.2518 +51 162 -15 +63.1569 +036.1502 +62.3357 +036.3490
16:33:33 +62.7323 +037.7844 +52 164 -16 +63.1445 +037.7056 +62.3223 +037.8596
16:33:46 +62.7086 +039.3106 +52 166 -17 +63.1212 +039.2545 +62.2983 +039.3640
16:34:00 +62.6742 +040.8300 +52 169 -18 +63.0869 +040.7965 +62.2637 +040.8617
16:34:14 +62.6292 +042.3422 +52 171 -18 +63.0418 +042.3310 +62.2188 +042.3524
16:34:27 +62.5737 +043.8467 +52 173 -19 +62.9860 +043.8575 +62.1636 +043.8356
16:34:41 +62.5078 +045.3431 +52 176 -20 +62.9196 +045.3757 +62.0983 +045.3111
16:34:55 +62.4318 +046.8311 +53 178 -20 +62.8428 +046.8851 +62.0229 +046.7783
16:35:08 +62.3456 +048.3101 +53 180 -21 +62.7558 +048.3853 +61.9376 +048.2369
16:35:22 +62.2495 +049.7800 +53 182 -22 +62.6585 +049.8759 +61.8425 +049.6867
16:35:36 +62.1435 +051.2403 +53 185 -23 +62.5513 +051.3566 +61.7377 +051.1274
16:35:49 +62.0277 +052.6908 +53 187 -23 +62.4341 +052.8271 +61.6234 +052.5586
16:36:03 +61.9024 +054.1312 +53 189 -24 +62.3072 +054.2870 +61.4996 +053.9801
16:36:16 +61.7676 +055.5613 +53 191 -25 +62.1706 +055.7362 +61.3666 +055.3918
16:36:30 +61.6235 +056.9809 +53 194 -25 +62.0245 +057.1744 +61.2243 +056.7934
16:36:44 +61.4701 +058.3898 +53 196 -26 +61.8690 +058.6015 +61.0729 +058.1847
16:36:57 +61.3076 +059.7879 +53 198 -27 +61.7043 +060.0172 +60.9126 +059.5657
16:37:11 +61.1361 +061.1750 +53 200 -27 +61.5304 +061.4215 +60.7434 +060.9362
16:37:25 +60.9558 +062.5512 +53 203 -28 +61.3476 +062.8143 +60.5655 +062.2962
16:37:38 +60.7667 +063.9163 +52 205 -29 +61.1558 +064.1955 +60.3790 +063.6456
16:37:52 +60.5689 +065.2703 +52 207 -30 +60.9553 +065.5651 +60.1839 +064.9844
16:38:06 +60.3626 +066.6132 +52 209 -30 +60.7461 +066.9232 +59.9804 +066.3127
16:38:19 +60.1478 +067.9452 +52 211 -31 +60.5283 +068.2698 +59.7685 +067.6304
16:38:33 +59.9247 +069.2662 +52 213 -32 +60.3021 +069.6050 +59.5484 +068.9376
16:38:47 +59.6933 +070.5764 +52 215 -32 +60.0675 +070.9288 +59.3201 +070.2345
16:39:00 +59.4538 +071.8759 +51 217 -33 +59.8246 +072.2414 +59.0838 +071.5212
16:39:14 +59.2061 +073.1649 +51 219 -34 +59.5736 +073.5430 +58.8394 +072.7977
16:39:28 +58.9504 +074.4435 +51 221 -34 +59.3144 +074.8338 +58.5871 +074.0643
16:39:41 +58.6868 +075.7119 +51 223 -35 +59.0472 +076.1140 +58.3269 +075.3212
16:39:55 +58.4152 +076.9704 +50 225 -36 +58.7720 +077.3838 +58.0589 +076.5687
16:40:08 +58.1358 +078.2193 +50 227 -36 +58.4888 +078.6435 +57.7832 +077.8068
16:40:22 +57.8486 +079.4587 +50 229 -37 +58.1978 +079.8935 +57.4996 +079.0360
16:40:36 +57.5536 +080.6891 +49 231 -38 +57.8989 +081.1339 +57.2084 +080.2564
16:40:49 +57.2509 +081.9108 +49 233 -38 +57.5922 +082.3653 +56.9096 +081.4685
16:41:03 +56.9404 +083.1241 +49 235 -39 +57.2777 +083.5878 +56.6030 +082.6725
16:41:17 +56.6222 +084.3293 +48 236 -40 +56.9554 +084.8021 +56.2888 +083.8689
16:41:30 +56.2963 +085.5269 +48 238 -41 +56.6253 +086.0083 +55.9669 +085.0580
16:41:44 +55.9626 +086.7174 +48 240 -41 +56.2874 +087.2071 +55.6373 +086.2401
16:41:58 +55.6211 +087.9011 +47 242 -42 +55.9416 +088.3989 +55.3001 +087.4158
16:42:11 +55.2718 +089.0785 +47 243 -43 +55.5879 +089.5841 +54.9550 +088.5855
16:42:25 +54.9147 +090.2501 +46 245 -43 +55.2263 +090.7633 +54.6022 +089.7496
16:42:39 +54.5495 +091.4165 +46 247 -44 +54.8567 +091.9370 +54.2414 +090.9087
16:42:52 +54.1763 +092.5782 +45 248 -45 +54.4789 +093.1058 +53.8727 +092.0634
16:43:06 +53.7950 +093.7358 +45 250 -45 +54.0929 +094.2703 +53.4959 +093.2140
16:43:20 +53.4054 +094.8899 +44 251 -46 +53.6986 +095.4311 +53.1109 +094.3614
16:43:33 +53.0074 +096.0411 +43 253 -47 +53.2957 +096.5890 +52.7176 +095.5060
16:43:47 +52.6008 +097.1902 +43 255 -47 +52.8842 +097.7447 +52.3158 +096.6486
16:44:00 +52.1854 +098.3379 +42 256 -48 +52.4638 +098.8988 +51.9053 +097.7899
16:44:14 +51.7611 +099.4850 +42 257 -49 +52.0343 +100.0523 +51.4859 +098.9306
16:44:28 +51.3274 +100.6322 +41 259 -49 +51.5955 +101.2059 +51.0574 +100.0715
16:44:41 +50.8843 +101.7806 +40 260 -50 +51.1470 +102.3606 +50.6195 +101.2134
16:44:55 +50.4313 +102.9310 +40 262 -50 +50.6885 +103.5174 +50.1718 +102.3574
16:45:09 +49.9681 +104.0844 +39 263 -51 +50.2197 +104.6774 +49.7141 +103.5044
16:45:22 +49.4943 +105.2421 +38 265 -52 +49.7400 +105.8418 +49.2460 +104.6555
16:45:36 +49.0094 +106.4052 +37 266 -52 +49.2492 +107.0117 +48.7669 +105.8119
16:45:50 +48.5129 +107.5751 +37 267 -53 +48.7464 +108.1886 +48.2764 +106.9748
16:46:03 +48.0042 +108.7532 +36 269 -54 +48.2313 +109.3741 +47.7739 +108.1457
16:46:17 +47.4825 +109.9411 +35 270 -54 +47.7030 +110.5698 +47.2588 +109.3261
16:46:31 +46.9472 +111.1408 +34 271 -55 +47.1607 +111.7776 +46.7302 +110.5177
16:46:44 +46.3973 +112.3542 +33 272 -55 +46.6034 +112.9997 +46.1874 +111.7227
16:46:58 +45.8318 +113.5836 +32 274 -56 +46.0301 +114.2385 +45.6294 +112.9430
16:47:12 +45.2494 +114.8318 +31 275 -56 +45.4395 +115.4968 +45.0549 +114.1813
16:47:25 +44.6488 +116.1017 +30 276 -57 +44.8301 +116.7779 +44.4627 +115.4405
16:47:39 +44.0281 +117.3969 +29 277 -57 +44.2000 +118.0854 +43.8511 +116.7240
16:47:52 +43.3855 +118.7218 +28 279 -58 +43.5472 +119.4241 +43.2183 +118.0357
16:48:06 +42.7185 +120.0813 +27 280 -58 +42.8689 +120.7991 +42.5619 +119.3804
16:48:20 +42.0239 +121.4816 +26 281 -58 +42.1620 +122.2174 +41.8791 +120.7639
16:48:33 +41.2982 +122.9305 +25 282 -59 +41.4223 +123.6871 +41.1666 +122.1933
16:48:47 +40.5364 +124.4378 +23 284 -59 +40.6446 +125.2190 +40.4198 +123.6775
16:49:01 +39.7324 +126.0161 +22 285 -59 +39.8220 +126.8271 +39.6330 +125.2283
16:49:14 +38.8775 +127.6828 +21 286 -59 +38.9448 +128.5309 +38.7987 +126.8611
16:49:28 +37.9599 +129.4622 +19 287 -59 +37.9996 +130.3580 +37.9062 +128.5974
16:49:42 +36.9616 +131.3905 +17 289 -59 +36.9653 +132.3508 +36.9400 +130.4688
16:49:55 +35.8538 +133.5264 +15 290 -58 +35.8071 +134.5801 +35.8759 +132.5243
16:50:09 +34.5843 +135.9765 +13 292 -58 +34.4582 +137.1827 +34.6720 +134.8497
16:50:23 +33.0360 +138.9803 +10 294 -57 +32.7505 +140.5023 +33.2422 +137.6212
16:50:36 +30.7763 +143.4285 +05 296 -54 +29.6151 +146.7432 +31.3351 +141.3554
Longitude measured positiv to the East. Azimuth (Azm) measured from North to East.