Cora»OccDetail

Stellar Occultation by (348) May on 2025-10-23 (23:57:34 UT)

Event Details
Occultation UUID [and db] : a23f6530-ddb8-11f0-547e-447f7f7f7866 [observed] Occultation Date + Time : 2025-10-23 at 23:57:34 UT +/- 0.01 min [1] Object Designation : (348) May Star Designation : GDR3 3302754126058680704 Star Coordinates (ICRF) : RA = 03 51 29.9684, DE = +10 21 58.224 [2] Star Magnitudes : G = 13.04 mag, RP = 12.52 mag, BP = 13.39 mag Object Magnitude : V = 13.92 mag Estimated Magnitude Drop : 1.3 mag Estimated Max. Duration : 9.2 sec Speed of the shadow : 9.0 km/s Object Mean Diameter : 82.8 km (src: astorb) => apparent = 59 mas Apparent Motion : 0.3883 arcs/min @ PA = 261 deg Horizontal Parallax : 4.5720 arcs Dynamical Class : MBA Elongation to Moon & Sun : 166° (sunlit = 6%), Sun = 151° Cross-track uncertainty : 1.3 mas = 1 km = 0.02 path-width (1-sig) RUWE and duplicate source : 0.99 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#80 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and db] : a23f6530-ddb8-11f0-547e-447f7f7f7866 [observed] Occultation Date + Time : 2025-10-23 at 23:57:34 UT +/- 0.01 min [1] Object Designation : (348) May Star Designation : GDR3 3302754126058680704 Star Coordinates (ICRF) : RA = 03 51 29.9684, DE = +10 21 58.224 [2] Star Magnitudes : G = 13.04 mag, RP = 12.52 mag, BP = 13.39 mag Object Magnitude : V = 13.92 mag Estimated Magnitude Drop : 1.3 mag Estimated Max. Duration : 9.2 sec Speed of the shadow : 9.0 km/s Object Mean Diameter : 82.8 km (src: astorb) => apparent = 59 mas Apparent Motion : 0.3883 arcs/min @ PA = 261 deg Horizontal Parallax : 4.5720 arcs Dynamical Class : MBA Elongation to Moon & Sun : 166° (sunlit = 6%), Sun = 151° Cross-track uncertainty : 1.3 mas = 1 km = 0.02 path-width (1-sig) RUWE and duplicate source : 0.99 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#80 Note : FP:true [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 ---------------------------------------------- 23:48:01 +45.1354 +122.8939 +04 281 +14 23:48:11 +46.3725 +115.0437 +10 275 +09 23:48:21 +47.0451 +110.1575 +13 271 +05 23:48:31 +47.5318 +106.2195 +16 268 +03 23:48:41 +47.9137 +102.8020 +18 266 +00 23:48:51 +48.2253 +099.7258 +20 263 -02 23:49:01 +48.4849 +096.8956 +22 261 -04 23:49:11 +48.7039 +094.2536 +23 259 -05 23:49:22 +48.8897 +091.7617 +25 257 -07 23:49:32 +49.0477 +089.3931 +26 255 -08 23:49:42 +49.1817 +087.1282 +28 253 -10 23:49:52 +49.2950 +084.9522 +29 251 -11 23:50:02 +49.3897 +082.8535 +30 249 -13 23:50:12 +49.4678 +080.8228 +31 247 -14 23:50:22 +49.5310 +078.8527 +32 245 -15 23:50:32 +49.5804 +076.9370 +34 244 -16 23:50:43 +49.6173 +075.0705 +35 242 -18 23:50:53 +49.6425 +073.2487 +36 240 -19 23:51:03 +49.6569 +071.4680 +37 238 -20 23:51:13 +49.6612 +069.7250 +37 237 -21 23:51:23 +49.6560 +068.0170 +38 235 -22 23:51:33 +49.6419 +066.3415 +39 233 -23 23:51:43 +49.6194 +064.6962 +40 231 -24 23:51:53 +49.5889 +063.0792 +41 230 -25 23:52:03 +49.5508 +061.4888 +42 228 -26 23:52:14 +49.5055 +059.9233 +42 226 -27 23:52:24 +49.4533 +058.3813 +43 224 -28 23:52:34 +49.3945 +056.8615 +44 223 -29 23:52:44 +49.3295 +055.3628 +44 221 -30 23:52:54 +49.2583 +053.8840 +45 219 -31 23:53:04 +49.1814 +052.4242 +46 217 -32 23:53:14 +49.0988 +050.9823 +46 216 -33 23:53:24 +49.0109 +049.5575 +47 214 -33 23:53:35 +48.9177 +048.1491 +48 212 -34 23:53:45 +48.8195 +046.7562 +48 210 -35 23:53:55 +48.7165 +045.3782 +49 208 -36 23:54:05 +48.6086 +044.0144 +49 207 -37 23:54:15 +48.4962 +042.6642 +50 205 -38 23:54:25 +48.3794 +041.3269 +50 203 -38 23:54:35 +48.2582 +040.0019 +50 201 -39 23:54:45 +48.1328 +038.6889 +51 199 -40 23:54:56 +48.0032 +037.3872 +51 197 -41 23:55:06 +47.8697 +036.0963 +52 195 -42 23:55:16 +47.7322 +034.8158 +52 193 -42 23:55:26 +47.5909 +033.5453 +52 192 -43 23:55:36 +47.4459 +032.2842 +53 190 -44 23:55:46 +47.2972 +031.0321 +53 188 -44 23:55:56 +47.1449 +029.7887 +53 186 -45 23:56:06 +46.9891 +028.5536 +53 184 -46 23:56:16 +46.8298 +027.3262 +54 182 -47 23:56:27 +46.6671 +026.1064 +54 180 -47 23:56:37 +46.5010 +024.8936 +54 178 -48 23:56:47 +46.3317 +023.6876 +54 176 -49 23:56:57 +46.1591 +022.4880 +54 174 -49 23:57:07 +45.9832 +021.2943 +54 172 -50 23:57:17 +45.8043 +020.1063 +54 170 -51 23:57:27 +45.6221 +018.9237 +54 168 -51 23:57:37 +45.4369 +017.7459 +54 166 -52 23:57:48 +45.2486 +016.5729 +54 164 -52 23:57:58 +45.0573 +015.4041 +54 162 -53 23:58:08 +44.8629 +014.2392 +54 161 -54 23:58:18 +44.6655 +013.0780 +54 159 -54 23:58:28 +44.4651 +011.9200 +54 157 -55 23:58:38 +44.2617 +010.7649 +54 155 -55 23:58:48 +44.0554 +009.6124 +54 153 -56 23:58:58 +43.8461 +008.4620 +53 151 -56 23:59:09 +43.6338 +007.3136 +53 149 -57 23:59:19 +43.4185 +006.1666 +53 147 -57 23:59:29 +43.2003 +005.0207 +53 146 -58 23:59:39 +42.9790 +003.8756 +52 144 -58 23:59:49 +42.7548 +002.7308 +52 142 -58 23:59:59 +42.5275 +001.5860 +52 140 -59 24:00:09 +42.2972 +000.4407 +51 139 -59 24:00:19 +42.0638 -000.7054 +51 137 -60 24:00:29 +41.8272 -001.8529 +51 135 -60 24:00:40 +41.5876 -003.0022 +50 134 -60 24:00:50 +41.3447 -004.1537 +50 132 -60 24:01:00 +41.0986 -005.3080 +49 130 -61 24:01:10 +40.8492 -006.4655 +49 129 -61 24:01:20 +40.5964 -007.6269 +48 127 -61 24:01:30 +40.3402 -008.7926 +48 126 -61 24:01:40 +40.0805 -009.9633 +47 124 -61 24:01:50 +39.8172 -011.1397 +47 123 -61 24:02:01 +39.5502 -012.3223 +46 121 -61 24:02:11 +39.2794 -013.5121 +45 120 -61 24:02:21 +39.0047 -014.7096 +45 119 -61 24:02:31 +38.7259 -015.9159 +44 117 -61 24:02:41 +38.4429 -017.1317 +43 116 -61 24:02:51 +38.1556 -018.3581 +43 114 -61 24:03:01 +37.8637 -019.5961 +42 113 -61 24:03:11 +37.5671 -020.8470 +41 112 -60 24:03:22 +37.2655 -022.1120 +40 111 -60 24:03:32 +36.9587 -023.3926 +40 109 -60 24:03:42 +36.6464 -024.6903 +39 108 -59 24:03:52 +36.3282 -026.0069 +38 107 -59 24:04:02 +36.0039 -027.3444 +37 106 -58 24:04:12 +35.6729 -028.7051 +36 104 -58 24:04:22 +35.3349 -030.0915 +35 103 -57 24:04:32 +34.9892 -031.5066 +34 102 -57 24:04:42 +34.6352 -032.9538 +33 101 -56 24:04:53 +34.2721 -034.4372 +32 100 -55 24:05:03 +33.8991 -035.9616 +31 098 -54 24:05:13 +33.5150 -037.5327 +29 097 -53 24:05:23 +33.1185 -039.1574 +28 096 -52 24:05:33 +32.7079 -040.8446 +27 095 -51 24:05:43 +32.2811 -042.6053 +25 094 -50 24:05:53 +31.8355 -044.4540 +24 092 -49 24:06:03 +31.3672 -046.4099 +22 091 -48 24:06:14 +30.8712 -048.5004 +21 090 -46 24:06:24 +30.3398 -050.7654 +19 089 -44 24:06:34 +29.7611 -053.2690 +16 087 -42 24:06:44 +29.1136 -056.1249 +14 086 -40 24:06:54 +28.3517 -059.5777 +11 084 -37 24:07:04 +27.3265 -064.4277 +07 082 -33 Longitude measured positiv to the East.

Occultation Ground Track

 ------------------ Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 23:48:01   +45.1354  +122.8939   +04  281  +14 23:48:11   +46.3725  +115.0437   +10  275  +09 23:48:21   +47.0451  +110.1575   +13  271  +05 23:48:31   +47.5318  +106.2195   +16  268  +03 23:48:41   +47.9137  +102.8020   +18  266  +00 23:48:51   +48.2253  +099.7258   +20  263  -02 23:49:01   +48.4849  +096.8956   +22  261  -04 23:49:11   +48.7039  +094.2536   +23  259  -05 23:49:22   +48.8897  +091.7617   +25  257  -07 23:49:32   +49.0477  +089.3931   +26  255  -08 23:49:42   +49.1817  +087.1282   +28  253  -10 23:49:52   +49.2950  +084.9522   +29  251  -11 23:50:02   +49.3897  +082.8535   +30  249  -13 23:50:12   +49.4678  +080.8228   +31  247  -14 23:50:22   +49.5310  +078.8527   +32  245  -15 23:50:32   +49.5804  +076.9370   +34  244  -16 23:50:43   +49.6173  +075.0705   +35  242  -18 23:50:53   +49.6425  +073.2487   +36  240  -19 23:51:03   +49.6569  +071.4680   +37  238  -20 23:51:13   +49.6612  +069.7250   +37  237  -21 23:51:23   +49.6560  +068.0170   +38  235  -22 23:51:33   +49.6419  +066.3415   +39  233  -23 23:51:43   +49.6194  +064.6962   +40  231  -24 23:51:53   +49.5889  +063.0792   +41  230  -25 23:52:03   +49.5508  +061.4888   +42  228  -26 23:52:14   +49.5055  +059.9233   +42  226  -27 23:52:24   +49.4533  +058.3813   +43  224  -28 23:52:34   +49.3945  +056.8615   +44  223  -29 23:52:44   +49.3295  +055.3628   +44  221  -30 23:52:54   +49.2583  +053.8840   +45  219  -31 23:53:04   +49.1814  +052.4242   +46  217  -32 23:53:14   +49.0988  +050.9823   +46  216  -33 23:53:24   +49.0109  +049.5575   +47  214  -33 23:53:35   +48.9177  +048.1491   +48  212  -34 23:53:45   +48.8195  +046.7562   +48  210  -35 23:53:55   +48.7165  +045.3782   +49  208  -36 23:54:05   +48.6086  +044.0144   +49  207  -37 23:54:15   +48.4962  +042.6642   +50  205  -38 23:54:25   +48.3794  +041.3269   +50  203  -38 23:54:35   +48.2582  +040.0019   +50  201  -39 23:54:45   +48.1328  +038.6889   +51  199  -40 23:54:56   +48.0032  +037.3872   +51  197  -41 23:55:06   +47.8697  +036.0963   +52  195  -42 23:55:16   +47.7322  +034.8158   +52  193  -42 23:55:26   +47.5909  +033.5453   +52  192  -43 23:55:36   +47.4459  +032.2842   +53  190  -44 23:55:46   +47.2972  +031.0321   +53  188  -44 23:55:56   +47.1449  +029.7887   +53  186  -45 23:56:06   +46.9891  +028.5536   +53  184  -46 23:56:16   +46.8298  +027.3262   +54  182  -47 23:56:27   +46.6671  +026.1064   +54  180  -47 23:56:37   +46.5010  +024.8936   +54  178  -48 23:56:47   +46.3317  +023.6876   +54  176  -49 23:56:57   +46.1591  +022.4880   +54  174  -49 23:57:07   +45.9832  +021.2943   +54  172  -50 23:57:17   +45.8043  +020.1063   +54  170  -51 23:57:27   +45.6221  +018.9237   +54  168  -51 23:57:37   +45.4369  +017.7459   +54  166  -52 23:57:48   +45.2486  +016.5729   +54  164  -52 23:57:58   +45.0573  +015.4041   +54  162  -53 23:58:08   +44.8629  +014.2392   +54  161  -54 23:58:18   +44.6655  +013.0780   +54  159  -54 23:58:28   +44.4651  +011.9200   +54  157  -55 23:58:38   +44.2617  +010.7649   +54  155  -55 23:58:48   +44.0554  +009.6124   +54  153  -56 23:58:58   +43.8461  +008.4620   +53  151  -56 23:59:09   +43.6338  +007.3136   +53  149  -57 23:59:19   +43.4185  +006.1666   +53  147  -57 23:59:29   +43.2003  +005.0207   +53  146  -58 23:59:39   +42.9790  +003.8756   +52  144  -58 23:59:49   +42.7548  +002.7308   +52  142  -58 23:59:59   +42.5275  +001.5860   +52  140  -59 24:00:09   +42.2972  +000.4407   +51  139  -59 24:00:19   +42.0638  -000.7054   +51  137  -60 24:00:29   +41.8272  -001.8529   +51  135  -60 24:00:40   +41.5876  -003.0022   +50  134  -60 24:00:50   +41.3447  -004.1537   +50  132  -60 24:01:00   +41.0986  -005.3080   +49  130  -61 24:01:10   +40.8492  -006.4655   +49  129  -61 24:01:20   +40.5964  -007.6269   +48  127  -61 24:01:30   +40.3402  -008.7926   +48  126  -61 24:01:40   +40.0805  -009.9633   +47  124  -61 24:01:50   +39.8172  -011.1397   +47  123  -61 24:02:01   +39.5502  -012.3223   +46  121  -61 24:02:11   +39.2794  -013.5121   +45  120  -61 24:02:21   +39.0047  -014.7096   +45  119  -61 24:02:31   +38.7259  -015.9159   +44  117  -61 24:02:41   +38.4429  -017.1317   +43  116  -61 24:02:51   +38.1556  -018.3581   +43  114  -61 24:03:01   +37.8637  -019.5961   +42  113  -61 24:03:11   +37.5671  -020.8470   +41  112  -60 24:03:22   +37.2655  -022.1120   +40  111  -60 24:03:32   +36.9587  -023.3926   +40  109  -60 24:03:42   +36.6464  -024.6903   +39  108  -59 24:03:52   +36.3282  -026.0069   +38  107  -59 24:04:02   +36.0039  -027.3444   +37  106  -58 24:04:12   +35.6729  -028.7051   +36  104  -58 24:04:22   +35.3349  -030.0915   +35  103  -57 24:04:32   +34.9892  -031.5066   +34  102  -57 24:04:42   +34.6352  -032.9538   +33  101  -56 24:04:53   +34.2721  -034.4372   +32  100  -55 24:05:03   +33.8991  -035.9616   +31  098  -54 24:05:13   +33.5150  -037.5327   +29  097  -53 24:05:23   +33.1185  -039.1574   +28  096  -52 24:05:33   +32.7079  -040.8446   +27  095  -51 24:05:43   +32.2811  -042.6053   +25  094  -50 24:05:53   +31.8355  -044.4540   +24  092  -49 24:06:03   +31.3672  -046.4099   +22  091  -48 24:06:14   +30.8712  -048.5004   +21  090  -46 24:06:24   +30.3398  -050.7654   +19  089  -44 24:06:34   +29.7611  -053.2690   +16  087  -42 24:06:44   +29.1136  -056.1249   +14  086  -40 24:06:54   +28.3517  -059.5777   +11  084  -37 24:07:04   +27.3265  -064.4277   +07  082  -33

Longitude measured positiv to the East.

------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +45.2258 +119.5157 +44.6213 +128.5302 +46.1660 +113.2429 +46.5291 +117.1322 +46.7612 +108.7653 +47.3085 +111.6831 +47.2069 +105.0441 +47.8451 +107.4818 +47.5622 +101.7693 +48.2580 +103.8999 +47.8545 +098.7979 +48.5913 +100.7063 +48.0993 +096.0501 +48.8673 +097.7855 +48.3065 +093.4759 +49.0992 +095.0699 +48.4825 +091.0415 +49.2955 +092.5161 +48.6324 +088.7231 +49.4623 +090.0939 +48.7595 +086.5027 +49.6039 +087.7817 +48.8667 +084.3667 +49.7235 +085.5633 +48.9563 +082.3045 +49.8238 +083.4261 +49.0299 +080.3075 +49.9068 +081.3601 +49.0891 +078.3685 +49.9741 +079.3573 +49.1350 +076.4819 +50.0273 +077.4110 +49.1688 +074.6427 +50.0674 +075.5159 +49.1913 +072.8468 +50.0956 +073.6671 +49.2033 +071.0905 +50.1125 +071.8609 +49.2055 +069.3709 +50.1190 +070.0936 +49.1984 +067.6851 +50.1158 +068.3625 +49.1827 +066.0308 +50.1034 +066.6648 +49.1588 +064.4059 +50.0824 +064.9983 +49.1271 +062.8086 +50.0531 +063.3609 +49.0880 +061.2370 +50.0161 +061.7508 +49.0418 +059.6897 +49.9717 +060.1664 +48.9890 +058.1653 +49.9203 +058.6062 +48.9297 +056.6625 +49.8621 +057.0688 +48.8642 +055.1803 +49.7975 +055.5530 +48.7927 +053.7174 +49.7267 +054.0577 +48.7156 +052.2730 +49.6500 +052.5818 +48.6330 +050.8462 +49.5675 +051.1243 +48.5451 +049.4360 +49.4795 +049.6845 +48.4521 +048.0418 +49.3863 +048.2613 +48.3541 +046.6627 +49.2878 +046.8542 +48.2513 +045.2982 +49.1845 +045.4623 +48.1439 +043.9474 +49.0762 +044.0849 +48.0320 +042.6099 +48.9634 +042.7214 +47.9156 +041.2851 +48.8460 +041.3713 +47.7951 +039.9723 +48.7242 +040.0338 +47.6703 +038.6711 +48.5980 +038.7085 +47.5415 +037.3809 +48.4678 +037.3949 +47.4088 +036.1014 +48.3334 +036.0924 +47.2721 +034.8319 +48.1951 +034.8005 +47.1317 +033.5721 +48.0529 +033.5188 +46.9877 +032.3216 +47.9068 +032.2468 +46.8400 +031.0798 +47.7571 +030.9841 +46.6887 +029.8465 +47.6037 +029.7303 +46.5340 +028.6213 +47.4468 +028.4850 +46.3758 +027.4036 +47.2863 +027.2477 +46.2143 +026.1933 +47.1224 +026.0181 +46.0494 +024.9898 +46.9551 +024.7957 +45.8813 +023.7929 +46.7845 +023.5803 +45.7100 +022.6022 +46.6106 +022.3714 +45.5355 +021.4174 +46.4334 +021.1687 +45.3579 +020.2380 +46.2530 +019.9719 +45.1771 +019.0638 +46.0695 +018.7805 +44.9933 +017.8945 +45.8828 +017.5942 +44.8065 +016.7296 +45.6930 +016.4127 +44.6166 +015.5689 +45.5001 +015.2356 +44.4237 +014.4120 +45.3042 +014.0626 +44.2278 +013.2585 +45.1053 +012.8933 +44.0290 +012.1083 +44.9033 +011.7274 +43.8272 +010.9608 +44.6983 +010.5645 +43.6225 +009.8158 +44.4903 +009.4042 +43.4148 +008.6730 +44.2793 +008.2462 +43.2042 +007.5319 +44.0653 +007.0902 +42.9906 +006.3922 +43.8483 +005.9358 +42.7741 +005.2535 +43.6283 +004.7825 +42.5545 +004.1156 +43.4052 +003.6300 +42.3321 +002.9779 +43.1792 +002.4779 +42.1066 +001.8402 +42.9500 +001.3259 +41.8781 +000.7019 +42.7178 +000.1734 +41.6465 -000.4372 +42.4825 -000.9800 +41.4118 -001.5777 +42.2441 -002.1347 +41.1741 -002.7200 +42.0025 -003.2911 +40.9331 -003.8645 +41.7576 -004.4498 +40.6890 -005.0117 +41.5095 -005.6113 +40.4416 -006.1622 +41.2581 -006.7761 +40.1908 -007.3164 +41.0032 -007.9447 +39.9367 -008.4750 +40.7449 -009.1177 +39.6790 -009.6385 +40.4830 -010.2959 +39.4179 -010.8076 +40.2175 -011.4797 +39.1530 -011.9828 +39.9483 -012.6700 +38.8844 -013.1650 +39.6752 -013.8674 +38.6120 -014.3549 +39.3981 -015.0729 +38.3355 -015.5533 +39.1170 -016.2872 +38.0549 -016.7611 +38.8315 -017.5112 +37.7700 -017.9793 +38.5417 -018.7461 +37.4806 -019.2089 +38.2472 -019.9929 +37.1866 -020.4510 +37.9480 -021.2529 +36.8877 -021.7068 +37.6436 -022.5273 +36.5836 -022.9779 +37.3340 -023.8177 +36.2741 -024.2657 +37.0187 -025.1257 +35.9590 -025.5718 +36.6975 -026.4531 +35.6377 -026.8983 +36.3700 -027.8020 +35.3100 -028.2473 +36.0357 -029.1749 +34.9753 -029.6212 +35.6941 -030.5743 +34.6332 -031.0229 +35.3446 -032.0034 +34.2830 -032.4556 +34.9867 -033.4658 +33.9241 -033.9232 +34.6193 -034.9658 +33.5554 -035.4302 +34.2417 -036.5085 +33.1761 -036.9820 +33.8526 -038.0999 +32.7848 -038.5851 +33.4505 -039.7476 +32.3801 -040.2476 +33.0338 -041.4610 +31.9599 -041.9798 +32.6000 -043.2522 +31.5218 -043.7949 +32.1463 -045.1370 +31.0624 -045.7104 +31.6684 -047.1370 +30.5772 -047.7506 +31.1606 -049.2828 +30.0594 -049.9505 +30.6142 -051.6208 +29.4988 -052.3647 +30.0147 -054.2270 +28.8780 -055.0860 +29.3356 -057.2440 +28.1621 -058.3002 +28.5140 -061.0084 +27.2574 -062.5116 +27.2667 -067.0460 Azimuth (Azm) measured from North to East.

Aladin Sky Atlas

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Aladin Lite direct link (has Gaia overlay)

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.