Cora»OccDetail

Stellar Occultation by (267449) 2002 DT8 on 2023-11-04 (20:45:36 UT)

Event Details
Occultation UUID [and db] : 33c18e20-ddb4-11f0-547e-005def67e670 [observed] Occultation Date + Time : 2023-11-04 at 20:45:36 UT +/- 0.23 min [1] Object Designation : (267449) 2002 DT8 Star Designation : GDR3 0955799754309149568 Star Coordinates (ICRF) : RA = 06 30 15.7278, DE = +39 33 02.610 [2] Star Magnitudes : G = 13.48 mag, RP = 12.72 mag, BP = 14.11 mag Object Magnitude : V = 19.26 mag Estimated Magnitude Drop : 5.8 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 9.9 km/s Object Mean Diameter : 3.0 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.4867 arcs/min @ PA = 14 deg Horizontal Parallax : 5.2530 arcs Dynamical Class : MBA Elongation to Moon & Sun : 32° (sunlit = 55%), Sun = 124° Cross-track uncertainty : 19.7 mas = 23 km = 7.97 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#27 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : 33c18e20-ddb4-11f0-547e-005def67e670 [observed]

 Occultation Date + Time   : 2023-11-04 at 20:45:36 UT +/- 0.23 min  [1]
 Object Designation        : (267449) 2002 DT8
 Star Designation          : GDR3 0955799754309149568
 Star Coordinates (ICRF)   : RA = 06 30 15.7278, DE = +39 33 02.610  [2]
 Star Magnitudes           : G = 13.48 mag, RP = 12.72 mag, BP = 14.11 mag
 Object Magnitude          : V = 19.26 mag
 Estimated Magnitude Drop  : 5.8 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 9.9 km/s
 Object Mean Diameter      : 3.0 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.4867 arcs/min @ PA = 14 deg
 Horizontal Parallax       : 5.2530 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 32° (sunlit = 55%), Sun = 124°
 Cross-track uncertainty   : 19.7 mas = 23 km = 7.97 path-width (1-sig)
 RUWE and duplicate source : 1.09 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#27
 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 ---------------------------------------------- 20:38:30 -17.6576 +035.9656 +05 046 -55 20:38:37 -14.6264 +038.3870 +08 045 -59 20:38:45 -12.4623 +039.8407 +11 045 -61 20:38:52 -10.6466 +040.9127 +13 045 -63 20:39:00 -09.0352 +041.7642 +15 045 -65 20:39:07 -07.5629 +042.4675 +16 045 -67 20:39:15 -06.1933 +043.0624 +18 045 -68 20:39:22 -04.9039 +043.5736 +19 045 -69 20:39:30 -03.6793 +044.0175 +20 045 -71 20:39:37 -02.5086 +044.4057 +21 045 -72 20:39:45 -01.3837 +044.7468 +22 046 -73 20:39:52 -00.2984 +045.0473 +23 046 -74 20:40:00 +00.7523 +045.3123 +24 046 -75 20:40:07 +01.7724 +045.5457 +25 046 -76 20:40:15 +02.7651 +045.7509 +26 047 -77 20:40:22 +03.7331 +045.9306 +27 047 -78 20:40:30 +04.6788 +046.0868 +28 047 -79 20:40:37 +05.6040 +046.2216 +28 048 -80 20:40:45 +06.5105 +046.3365 +29 048 -81 20:40:52 +07.3996 +046.4328 +30 048 -82 20:41:00 +08.2728 +046.5117 +31 049 -83 20:41:07 +09.1310 +046.5742 +31 049 -84 20:41:15 +09.9754 +046.6211 +32 049 -84 20:41:22 +10.8067 +046.6531 +32 050 -85 20:41:30 +11.6258 +046.6710 +33 050 -86 20:41:37 +12.4334 +046.6753 +33 051 -87 20:41:45 +13.2302 +046.6664 +34 051 -87 20:41:52 +14.0166 +046.6448 +34 051 -88 20:42:00 +14.7934 +046.6109 +35 052 -89 20:42:07 +15.5608 +046.5649 +35 052 -89 20:42:15 +16.3195 +046.5072 +36 053 -89 20:42:22 +17.0697 +046.4379 +36 053 -88 20:42:30 +17.8119 +046.3573 +37 054 -87 20:42:37 +18.5463 +046.2655 +37 054 -87 20:42:45 +19.2734 +046.1627 +37 054 -86 20:42:52 +19.9933 +046.0488 +38 055 -85 20:43:00 +20.7064 +045.9241 +38 055 -85 20:43:07 +21.4128 +045.7886 +38 056 -84 20:43:15 +22.1129 +045.6422 +39 056 -83 20:43:22 +22.8068 +045.4851 +39 057 -83 20:43:30 +23.4947 +045.3170 +39 057 -82 20:43:37 +24.1767 +045.1381 +40 058 -81 20:43:45 +24.8531 +044.9483 +40 058 -81 20:43:52 +25.5239 +044.7474 +40 059 -80 20:44:00 +26.1894 +044.5353 +40 059 -79 20:44:07 +26.8496 +044.3120 +40 060 -79 20:44:15 +27.5045 +044.0774 +41 060 -78 20:44:22 +28.1544 +043.8311 +41 061 -77 20:44:30 +28.7993 +043.5732 +41 061 -77 20:44:37 +29.4392 +043.3033 +41 061 -76 20:44:45 +30.0743 +043.0213 +41 062 -75 20:44:52 +30.7045 +042.7269 +41 062 -75 20:45:00 +31.3299 +042.4199 +41 063 -74 20:45:07 +31.9506 +042.1001 +41 063 -73 20:45:15 +32.5664 +041.7670 +41 064 -73 20:45:22 +33.1775 +041.4205 +41 064 -72 20:45:30 +33.7839 +041.0602 +41 064 -71 20:45:37 +34.3854 +040.6857 +41 065 -71 20:45:45 +34.9821 +040.2966 +41 065 -70 20:45:52 +35.5740 +039.8927 +41 066 -70 20:46:00 +36.1609 +039.4734 +41 066 -69 20:46:07 +36.7428 +039.0384 +41 066 -68 20:46:15 +37.3197 +038.5871 +41 067 -68 20:46:22 +37.8914 +038.1191 +41 067 -67 20:46:30 +38.4578 +037.6339 +41 067 -66 20:46:37 +39.0188 +037.1309 +41 068 -66 20:46:45 +39.5742 +036.6095 +41 068 -65 20:46:52 +40.1239 +036.0693 +41 068 -64 20:47:00 +40.6677 +035.5095 +40 068 -64 20:47:07 +41.2054 +034.9296 +40 068 -63 20:47:15 +41.7368 +034.3288 +40 069 -62 20:47:22 +42.2617 +033.7064 +40 069 -62 20:47:30 +42.7797 +033.0617 +40 069 -61 20:47:37 +43.2906 +032.3940 +39 069 -60 20:47:45 +43.7940 +031.7024 +39 069 -60 20:47:52 +44.2897 +030.9862 +39 069 -59 20:48:00 +44.7772 +030.2444 +38 069 -59 20:48:07 +45.2561 +029.4762 +38 069 -58 20:48:15 +45.7260 +028.6806 +38 069 -57 20:48:22 +46.1864 +027.8568 +37 069 -57 20:48:30 +46.6368 +027.0037 +37 069 -56 20:48:37 +47.0765 +026.1204 +37 069 -55 20:48:45 +47.5051 +025.2057 +36 068 -55 20:48:52 +47.9217 +024.2587 +36 068 -54 20:49:00 +48.3256 +023.2783 +35 068 -53 20:49:07 +48.7161 +022.2634 +35 068 -52 20:49:15 +49.0923 +021.2128 +35 067 -52 20:49:22 +49.4533 +020.1255 +34 067 -51 20:49:30 +49.7980 +019.0003 +34 066 -50 20:49:37 +50.1252 +017.8361 +33 066 -50 20:49:45 +50.4339 +016.6317 +32 065 -49 20:49:52 +50.7226 +015.3861 +32 065 -48 20:50:00 +50.9899 +014.0980 +31 064 -47 20:50:07 +51.2343 +012.7664 +31 064 -47 20:50:15 +51.4539 +011.3902 +30 063 -46 20:50:22 +51.6468 +009.9682 +29 062 -45 20:50:30 +51.8109 +008.4994 +29 061 -44 20:50:37 +51.9439 +006.9826 +28 060 -44 20:50:45 +52.0430 +005.4167 +27 060 -43 20:50:52 +52.1053 +003.8006 +26 059 -42 20:51:00 +52.1273 +002.1330 +25 058 -41 20:51:07 +52.1051 +000.4124 +25 056 -40 20:51:15 +52.0341 -001.3629 +24 055 -39 20:51:22 +51.9090 -003.1949 +23 054 -38 20:51:30 +51.7231 -005.0864 +22 053 -37 20:51:37 +51.4685 -007.0409 +21 052 -36 20:51:45 +51.1351 -009.0636 +19 050 -35 20:51:52 +50.7093 -011.1619 +18 049 -34 20:52:00 +50.1732 -013.3469 +17 047 -33 20:52:07 +49.5003 -015.6362 +15 046 -32 20:52:15 +48.6494 -018.0596 +13 044 -31 20:52:22 +47.5489 -020.6727 +12 042 -29 20:52:30 +46.0472 -023.5992 +09 040 -27 20:52:37 +43.6634 -027.2494 +06 038 -25 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 20:38:30   -17.6576  +035.9656   +05  046  -55 20:38:37   -14.6264  +038.3870   +08  045  -59 20:38:45   -12.4623  +039.8407   +11  045  -61 20:38:52   -10.6466  +040.9127   +13  045  -63 20:39:00   -09.0352  +041.7642   +15  045  -65 20:39:07   -07.5629  +042.4675   +16  045  -67 20:39:15   -06.1933  +043.0624   +18  045  -68 20:39:22   -04.9039  +043.5736   +19  045  -69 20:39:30   -03.6793  +044.0175   +20  045  -71 20:39:37   -02.5086  +044.4057   +21  045  -72 20:39:45   -01.3837  +044.7468   +22  046  -73 20:39:52   -00.2984  +045.0473   +23  046  -74 20:40:00   +00.7523  +045.3123   +24  046  -75 20:40:07   +01.7724  +045.5457   +25  046  -76 20:40:15   +02.7651  +045.7509   +26  047  -77 20:40:22   +03.7331  +045.9306   +27  047  -78 20:40:30   +04.6788  +046.0868   +28  047  -79 20:40:37   +05.6040  +046.2216   +28  048  -80 20:40:45   +06.5105  +046.3365   +29  048  -81 20:40:52   +07.3996  +046.4328   +30  048  -82 20:41:00   +08.2728  +046.5117   +31  049  -83 20:41:07   +09.1310  +046.5742   +31  049  -84 20:41:15   +09.9754  +046.6211   +32  049  -84 20:41:22   +10.8067  +046.6531   +32  050  -85 20:41:30   +11.6258  +046.6710   +33  050  -86 20:41:37   +12.4334  +046.6753   +33  051  -87 20:41:45   +13.2302  +046.6664   +34  051  -87 20:41:52   +14.0166  +046.6448   +34  051  -88 20:42:00   +14.7934  +046.6109   +35  052  -89 20:42:07   +15.5608  +046.5649   +35  052  -89 20:42:15   +16.3195  +046.5072   +36  053  -89 20:42:22   +17.0697  +046.4379   +36  053  -88 20:42:30   +17.8119  +046.3573   +37  054  -87 20:42:37   +18.5463  +046.2655   +37  054  -87 20:42:45   +19.2734  +046.1627   +37  054  -86 20:42:52   +19.9933  +046.0488   +38  055  -85 20:43:00   +20.7064  +045.9241   +38  055  -85 20:43:07   +21.4128  +045.7886   +38  056  -84 20:43:15   +22.1129  +045.6422   +39  056  -83 20:43:22   +22.8068  +045.4851   +39  057  -83 20:43:30   +23.4947  +045.3170   +39  057  -82 20:43:37   +24.1767  +045.1381   +40  058  -81 20:43:45   +24.8531  +044.9483   +40  058  -81 20:43:52   +25.5239  +044.7474   +40  059  -80 20:44:00   +26.1894  +044.5353   +40  059  -79 20:44:07   +26.8496  +044.3120   +40  060  -79 20:44:15   +27.5045  +044.0774   +41  060  -78 20:44:22   +28.1544  +043.8311   +41  061  -77 20:44:30   +28.7993  +043.5732   +41  061  -77 20:44:37   +29.4392  +043.3033   +41  061  -76 20:44:45   +30.0743  +043.0213   +41  062  -75 20:44:52   +30.7045  +042.7269   +41  062  -75 20:45:00   +31.3299  +042.4199   +41  063  -74 20:45:07   +31.9506  +042.1001   +41  063  -73 20:45:15   +32.5664  +041.7670   +41  064  -73 20:45:22   +33.1775  +041.4205   +41  064  -72 20:45:30   +33.7839  +041.0602   +41  064  -71 20:45:37   +34.3854  +040.6857   +41  065  -71 20:45:45   +34.9821  +040.2966   +41  065  -70 20:45:52   +35.5740  +039.8927   +41  066  -70 20:46:00   +36.1609  +039.4734   +41  066  -69 20:46:07   +36.7428  +039.0384   +41  066  -68 20:46:15   +37.3197  +038.5871   +41  067  -68 20:46:22   +37.8914  +038.1191   +41  067  -67 20:46:30   +38.4578  +037.6339   +41  067  -66 20:46:37   +39.0188  +037.1309   +41  068  -66 20:46:45   +39.5742  +036.6095   +41  068  -65 20:46:52   +40.1239  +036.0693   +41  068  -64 20:47:00   +40.6677  +035.5095   +40  068  -64 20:47:07   +41.2054  +034.9296   +40  068  -63 20:47:15   +41.7368  +034.3288   +40  069  -62 20:47:22   +42.2617  +033.7064   +40  069  -62 20:47:30   +42.7797  +033.0617   +40  069  -61 20:47:37   +43.2906  +032.3940   +39  069  -60 20:47:45   +43.7940  +031.7024   +39  069  -60 20:47:52   +44.2897  +030.9862   +39  069  -59 20:48:00   +44.7772  +030.2444   +38  069  -59 20:48:07   +45.2561  +029.4762   +38  069  -58 20:48:15   +45.7260  +028.6806   +38  069  -57 20:48:22   +46.1864  +027.8568   +37  069  -57 20:48:30   +46.6368  +027.0037   +37  069  -56 20:48:37   +47.0765  +026.1204   +37  069  -55 20:48:45   +47.5051  +025.2057   +36  068  -55 20:48:52   +47.9217  +024.2587   +36  068  -54 20:49:00   +48.3256  +023.2783   +35  068  -53 20:49:07   +48.7161  +022.2634   +35  068  -52 20:49:15   +49.0923  +021.2128   +35  067  -52 20:49:22   +49.4533  +020.1255   +34  067  -51 20:49:30   +49.7980  +019.0003   +34  066  -50 20:49:37   +50.1252  +017.8361   +33  066  -50 20:49:45   +50.4339  +016.6317   +32  065  -49 20:49:52   +50.7226  +015.3861   +32  065  -48 20:50:00   +50.9899  +014.0980   +31  064  -47 20:50:07   +51.2343  +012.7664   +31  064  -47 20:50:15   +51.4539  +011.3902   +30  063  -46 20:50:22   +51.6468  +009.9682   +29  062  -45 20:50:30   +51.8109  +008.4994   +29  061  -44 20:50:37   +51.9439  +006.9826   +28  060  -44 20:50:45   +52.0430  +005.4167   +27  060  -43 20:50:52   +52.1053  +003.8006   +26  059  -42 20:51:00   +52.1273  +002.1330   +25  058  -41 20:51:07   +52.1051  +000.4124   +25  056  -40 20:51:15   +52.0341  -001.3629   +24  055  -39 20:51:22   +51.9090  -003.1949   +23  054  -38 20:51:30   +51.7231  -005.0864   +22  053  -37 20:51:37   +51.4685  -007.0409   +21  052  -36 20:51:45   +51.1351  -009.0636   +19  050  -35 20:51:52   +50.7093  -011.1619   +18  049  -34 20:52:00   +50.1732  -013.3469   +17  047  -33 20:52:07   +49.5003  -015.6362   +15  046  -32 20:52:15   +48.6494  -018.0596   +13  044  -31 20:52:22   +47.5489  -020.6727   +12  042  -29 20:52:30   +46.0472  -023.5992   +09  040  -27 20:52:37   +43.6634  -027.2494   +06  038  -25

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- -17.7392 +035.8643 -17.5782 +036.0643 -14.6694 +038.3295 -14.5838 +038.4440 -12.4945 +039.7953 -12.4302 +039.8859 -10.6733 +040.8735 -10.6200 +040.9518 -09.0584 +041.7288 -09.0121 +041.7995 -07.5836 +042.4348 -07.5422 +042.5001 -06.2122 +043.0318 -06.1745 +043.0931 -04.9213 +043.5445 -04.8865 +043.6027 -03.6956 +043.9896 -03.6630 +044.0454 -02.5240 +044.3788 -02.4933 +044.4326 -01.3983 +044.7208 -01.3692 +044.7728 -00.3122 +045.0220 -00.2846 +045.0726 +00.7391 +045.2876 +00.7656 +045.3370 +01.7597 +045.5215 +01.7851 +045.5699 +02.7528 +045.7272 +02.7774 +045.7747 +03.7213 +045.9072 +03.7450 +045.9539 +04.6673 +046.0638 +04.6903 +046.1098 +05.5928 +046.1989 +05.6152 +046.2443 +06.4996 +046.3141 +06.5214 +046.3589 +07.3890 +046.4106 +07.4103 +046.4550 +08.2624 +046.4897 +08.2832 +046.5337 +09.1208 +046.5524 +09.1412 +046.5959 +09.9654 +046.5994 +09.9853 +046.6427 +10.7969 +046.6316 +10.8165 +046.6746 +11.6161 +046.6497 +11.6355 +046.6923 +12.4239 +046.6540 +12.4429 +046.6965 +13.2208 +046.6453 +13.2395 +046.6875 +14.0074 +046.6237 +14.0259 +046.6658 +14.7842 +046.5899 +14.8025 +046.6318 +15.5518 +046.5440 +15.5699 +046.5858 +16.3105 +046.4863 +16.3284 +046.5280 +17.0608 +046.4171 +17.0785 +046.4587 +17.8031 +046.3365 +17.8206 +046.3781 +18.5376 +046.2447 +18.5550 +046.2863 +19.2647 +046.1419 +19.2820 +046.1834 +19.9847 +046.0281 +20.0019 +046.0696 +20.6978 +045.9034 +20.7149 +045.9449 +21.4043 +045.7678 +21.4213 +045.8094 +22.1044 +045.6214 +22.1214 +045.6630 +22.7983 +045.4642 +22.8152 +045.5059 +23.4862 +045.2962 +23.5031 +045.3379 +24.1683 +045.1172 +24.1851 +045.1590 +24.8447 +044.9273 +24.8615 +044.9692 +25.5155 +044.7264 +25.5323 +044.7683 +26.1810 +044.5143 +26.1978 +044.5564 +26.8411 +044.2909 +26.8580 +044.3331 +27.4961 +044.0562 +27.5129 +044.0985 +28.1460 +043.8099 +28.1628 +043.8524 +28.7909 +043.5518 +28.8077 +043.5945 +29.4308 +043.2819 +29.4477 +043.3247 +30.0658 +042.9998 +30.0828 +043.0428 +30.6960 +042.7053 +30.7130 +042.7485 +31.3214 +042.3982 +31.3385 +042.4416 +31.9419 +042.0783 +31.9591 +042.1218 +32.5578 +041.7451 +32.5751 +041.7889 +33.1688 +041.3985 +33.1862 +041.4425 +33.7751 +041.0380 +33.7926 +041.0823 +34.3766 +040.6634 +34.3942 +040.7079 +34.9732 +040.2743 +34.9910 +040.3190 +35.5650 +039.8702 +35.5829 +039.9152 +36.1519 +039.4508 +36.1699 +039.4961 +36.7337 +039.0156 +36.7520 +039.0611 +37.3105 +038.5642 +37.3289 +038.6100 +37.8821 +038.0960 +37.9007 +038.1422 +38.4484 +037.6107 +38.4672 +037.6571 +39.0093 +037.1075 +39.0283 +037.1542 +39.5646 +036.5860 +39.5838 +036.6331 +40.1142 +036.0456 +40.1336 +036.0930 +40.6579 +035.4857 +40.6776 +035.5334 +41.1955 +034.9056 +41.2154 +034.9536 +41.7267 +034.3046 +41.7469 +034.3529 +42.2514 +033.6820 +42.2719 +033.7307 +42.7693 +033.0372 +42.7901 +033.0863 +43.2800 +032.3693 +43.3011 +032.4187 +43.7833 +031.6775 +43.8047 +031.7273 +44.2788 +030.9611 +44.3006 +031.0113 +44.7661 +030.2191 +44.7883 +030.2697 +45.2448 +029.4507 +45.2674 +029.5016 +45.7145 +028.6550 +45.7375 +028.7063 +46.1747 +027.8310 +46.1981 +027.8826 +46.6249 +026.9777 +46.6487 +027.0297 +47.0644 +026.0942 +47.0887 +026.1466 +47.4927 +025.1793 +47.5175 +025.2321 +47.9090 +024.2322 +47.9343 +024.2853 +48.3127 +023.2516 +48.3386 +023.3050 +48.7029 +022.2365 +48.7294 +022.2903 +49.0788 +021.1857 +49.1059 +021.2399 +49.4394 +020.0982 +49.4671 +020.1528 +49.7838 +018.9729 +49.8121 +019.0277 +50.1107 +017.8085 +50.1398 +017.8637 +50.4190 +016.6040 +50.4488 +016.6595 +50.7073 +015.3582 +50.7379 +015.4140 +50.9742 +014.0700 +51.0057 +014.1261 +51.2181 +012.7382 +51.2504 +012.7946 +51.4372 +011.3618 +51.4705 +011.4185 +51.6296 +009.9397 +51.6640 +009.9967 +51.7932 +008.4708 +51.8286 +008.5280 +51.9256 +006.9538 +51.9622 +007.0113 +52.0241 +005.3879 +52.0619 +005.4456 +52.0857 +003.7716 +52.1249 +003.8296 +52.1069 +002.1038 +52.1476 +002.1622 +52.0839 +000.3830 +52.1262 +000.4417 +52.0121 -001.3925 +52.0562 -001.3333 +51.8859 -003.2248 +51.9320 -003.1651 +51.6989 -005.1166 +51.7473 -005.0562 +51.4430 -007.0716 +51.4940 -007.0102 +51.1080 -009.0950 +51.1621 -009.0323 +50.6804 -011.1941 +50.7382 -011.1298 +50.1420 -013.3803 +50.2044 -013.3135 +49.4660 -015.6714 +49.5344 -015.6011 +48.6111 -018.0975 +48.6877 -018.0218 +47.5042 -020.7152 +47.5933 -020.6303 +45.9909 -023.6509 +46.1030 -023.5478 +43.5725 -027.3307 +43.7526 -027.1697 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.