Cora»OccDetail

Stellar Occultation by (331448) 2012 HX7 on 2024-08-11 (20:39:16 UT)

Event Details
Occultation UUID [and db] : 3c7699b0-ddb5-11f0-547e-fa59e85a55a6 [observed] Occultation Date + Time : 2024-08-11 at 20:39:16 UT +/- 0.1 min [1] Object Designation : (331448) 2012 HX7 Star Designation : GDR3 1818380168338693888 Star Coordinates (ICRF) : RA = 20 33 52.6404, DE = +21 27 27.412 [2] Star Magnitudes : G = 10.96 mag, RP = 10.25 mag, BP = 11.53 mag Object Magnitude : V = 20.48 mag Estimated Magnitude Drop : 9.5 mag Estimated Max. Duration : 0.2 sec Speed of the shadow : 12.7 km/s Object Mean Diameter : 2.6 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.4783 arcs/min @ PA = 238 deg Horizontal Parallax : 4.0070 arcs Dynamical Class : MBA Elongation to Moon & Sun : 97° (sunlit = 43%), Sun = 141° Cross-track uncertainty : 34.3 mas = 54 km = 21.00 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#25 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : 3c7699b0-ddb5-11f0-547e-fa59e85a55a6 [observed]

 Occultation Date + Time   : 2024-08-11 at 20:39:16 UT +/- 0.1 min  [1]
 Object Designation        : (331448) 2012 HX7
 Star Designation          : GDR3 1818380168338693888
 Star Coordinates (ICRF)   : RA = 20 33 52.6404, DE = +21 27 27.412  [2]
 Star Magnitudes           : G = 10.96 mag, RP = 10.25 mag, BP = 11.53 mag
 Object Magnitude          : V = 20.48 mag
 Estimated Magnitude Drop  : 9.5 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 12.7 km/s
 Object Mean Diameter      : 2.6 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.4783 arcs/min @ PA = 238 deg
 Horizontal Parallax       : 4.0070 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 97° (sunlit = 43%), Sun = 141°
 Cross-track uncertainty   : 34.3 mas = 54 km = 21.00 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#25
 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

(If error 404: link not valid which means no data available)

Interactive map

Download KMZ file

Aladin Sky Atlas

Aladin Lite direct link (has Gaia overlay)

Occultation Ground Track
Time[UT] \| Lat----CENTR----Lon \| Alt hh:mm:ss \| +DD.dddd +DDD.dddd \| deg ---------------------------------------------- 20:32:16 +62.5505 +157.2696 +07 304 +20 20:32:23 +65.1672 +149.1582 +12 296 +16 20:32:31 +66.8452 +142.5516 +15 290 +13 20:32:38 +68.0747 +136.5378 +17 285 +11 20:32:46 +69.0117 +130.8523 +19 279 +10 20:32:53 +69.7307 +125.3887 +21 274 +08 20:33:01 +70.2748 +120.1023 +23 269 +07 20:33:08 +70.6723 +114.9771 +25 264 +05 20:33:16 +70.9440 +110.0117 +27 259 +04 20:33:23 +71.1057 +105.2118 +28 254 +03 20:33:31 +71.1708 +100.5854 +29 250 +02 20:33:38 +71.1506 +096.1406 +31 245 +01 20:33:46 +71.0550 +091.8835 +32 241 +00 20:33:53 +70.8927 +087.8179 +33 237 -01 20:34:01 +70.6718 +083.9446 +34 233 -02 20:34:08 +70.3991 +080.2617 +35 229 -03 20:34:16 +70.0812 +076.7653 +37 225 -03 20:34:23 +69.7235 +073.4492 +38 222 -04 20:34:31 +69.3311 +070.3060 +39 218 -05 20:34:38 +68.9084 +067.3273 +40 215 -06 20:34:46 +68.4592 +064.5041 +40 212 -06 20:34:53 +67.9871 +061.8272 +41 209 -07 20:35:01 +67.4949 +059.2872 +42 206 -07 20:35:08 +66.9853 +056.8750 +43 203 -08 20:35:16 +66.4606 +054.5819 +44 200 -09 20:35:23 +65.9228 +052.3994 +45 198 -09 20:35:31 +65.3735 +050.3196 +45 195 -10 20:35:38 +64.8144 +048.3350 +46 193 -10 20:35:46 +64.2467 +046.4387 +47 191 -11 20:35:53 +63.6715 +044.6243 +48 188 -11 20:36:01 +63.0899 +042.8857 +48 186 -12 20:36:08 +62.5027 +041.2173 +49 184 -12 20:36:16 +61.9106 +039.6141 +50 181 -13 20:36:23 +61.3144 +038.0714 +50 179 -13 20:36:31 +60.7145 +036.5847 +51 177 -13 20:36:38 +60.1114 +035.1502 +51 175 -14 20:36:46 +59.5056 +033.7640 +52 173 -14 20:36:53 +58.8974 +032.4229 +52 171 -14 20:37:01 +58.2871 +031.1236 +53 169 -15 20:37:08 +57.6751 +029.8633 +53 167 -15 20:37:16 +57.0614 +028.6394 +54 165 -15 20:37:23 +56.4464 +027.4493 +54 163 -16 20:37:31 +55.8301 +026.2907 +54 161 -16 20:37:38 +55.2128 +025.1616 +55 159 -16 20:37:46 +54.5945 +024.0600 +55 156 -17 20:37:53 +53.9753 +022.9840 +55 154 -17 20:38:01 +53.3553 +021.9320 +56 152 -17 20:38:08 +52.7346 +020.9023 +56 150 -17 20:38:16 +52.1131 +019.8935 +56 148 -18 20:38:23 +51.4909 +018.9043 +56 146 -18 20:38:31 +50.8681 +017.9332 +57 144 -18 20:38:38 +50.2446 +016.9792 +57 142 -18 20:38:46 +49.6204 +016.0410 +57 140 -18 20:38:53 +48.9956 +015.1176 +57 138 -18 20:39:01 +48.3700 +014.2079 +57 136 -19 20:39:08 +47.7436 +013.3111 +57 135 -19 20:39:16 +47.1165 +012.4261 +57 133 -19 20:39:23 +46.4885 +011.5522 +57 131 -19 20:39:31 +45.8596 +010.6885 +57 129 -19 20:39:38 +45.2298 +009.8341 +57 127 -19 20:39:46 +44.5989 +008.9885 +57 125 -19 20:39:53 +43.9669 +008.1507 +57 123 -19 20:40:01 +43.3338 +007.3202 +57 121 -19 20:40:08 +42.6994 +006.4963 +56 119 -19 20:40:16 +42.0637 +005.6783 +56 118 -19 20:40:23 +41.4265 +004.8655 +56 116 -19 20:40:31 +40.7878 +004.0574 +56 114 -19 20:40:38 +40.1474 +003.2534 +55 112 -19 20:40:46 +39.5052 +002.4528 +55 111 -19 20:40:53 +38.8612 +001.6551 +55 109 -19 20:41:01 +38.2151 +000.8596 +54 108 -19 20:41:08 +37.5669 +000.0659 +54 106 -19 20:41:16 +36.9164 -000.7266 +54 104 -19 20:41:23 +36.2634 -001.5187 +53 103 -19 20:41:31 +35.6079 -002.3107 +53 101 -19 20:41:38 +34.9495 -003.1033 +52 100 -19 20:41:46 +34.2882 -003.8972 +52 099 -18 20:41:53 +33.6238 -004.6928 +51 097 -18 20:42:01 +32.9560 -005.4909 +51 096 -18 20:42:08 +32.2846 -006.2920 +50 095 -18 20:42:16 +31.6094 -007.0969 +49 093 -18 20:42:23 +30.9302 -007.9063 +49 092 -17 20:42:31 +30.2467 -008.7207 +48 091 -17 20:42:38 +29.5586 -009.5412 +47 090 -17 20:42:46 +28.8656 -010.3683 +47 089 -17 20:42:53 +28.1673 -011.2030 +46 088 -16 20:43:01 +27.4635 -012.0462 +45 087 -16 20:43:08 +26.7536 -012.8989 +45 085 -16 20:43:16 +26.0374 -013.7621 +44 084 -15 20:43:23 +25.3142 -014.6369 +43 084 -15 20:43:31 +24.5837 -015.5247 +42 083 -15 20:43:38 +23.8452 -016.4268 +41 082 -14 20:43:46 +23.0981 -017.3448 +40 081 -14 20:43:53 +22.3417 -018.2802 +39 080 -13 20:44:01 +21.5752 -019.2351 +38 079 -13 20:44:08 +20.7976 -020.2116 +37 078 -12 20:44:16 +20.0081 -021.2121 +36 078 -12 20:44:23 +19.2052 -022.2395 +35 077 -11 20:44:31 +18.3878 -023.2970 +34 076 -10 20:44:38 +17.5541 -024.3884 +33 075 -10 20:44:46 +16.7024 -025.5184 +32 075 -09 20:44:53 +15.8301 -026.6924 +30 074 -08 20:45:01 +14.9347 -027.9171 +29 073 -07 20:45:08 +14.0125 -029.2011 +28 073 -07 20:45:16 +13.0591 -030.5551 +26 072 -06 20:45:23 +12.0686 -031.9931 +24 072 -05 20:45:31 +11.0333 -033.5346 +23 071 -03 20:45:38 +09.9419 -035.2066 +21 071 -02 20:45:46 +08.7776 -037.0506 +19 070 -01 20:45:53 +07.5132 -039.1340 +16 070 +01 20:46:01 +06.0979 -041.5829 +14 069 +03 20:46:08 +04.4126 -044.6946 +10 069 +05 20:46:16 +01.9281 -049.7985 +05 069 +10 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 20:32:16   +62.5505  +157.2696   +07  304  +20 20:32:23   +65.1672  +149.1582   +12  296  +16 20:32:31   +66.8452  +142.5516   +15  290  +13 20:32:38   +68.0747  +136.5378   +17  285  +11 20:32:46   +69.0117  +130.8523   +19  279  +10 20:32:53   +69.7307  +125.3887   +21  274  +08 20:33:01   +70.2748  +120.1023   +23  269  +07 20:33:08   +70.6723  +114.9771   +25  264  +05 20:33:16   +70.9440  +110.0117   +27  259  +04 20:33:23   +71.1057  +105.2118   +28  254  +03 20:33:31   +71.1708  +100.5854   +29  250  +02 20:33:38   +71.1506  +096.1406   +31  245  +01 20:33:46   +71.0550  +091.8835   +32  241  +00 20:33:53   +70.8927  +087.8179   +33  237  -01 20:34:01   +70.6718  +083.9446   +34  233  -02 20:34:08   +70.3991  +080.2617   +35  229  -03 20:34:16   +70.0812  +076.7653   +37  225  -03 20:34:23   +69.7235  +073.4492   +38  222  -04 20:34:31   +69.3311  +070.3060   +39  218  -05 20:34:38   +68.9084  +067.3273   +40  215  -06 20:34:46   +68.4592  +064.5041   +40  212  -06 20:34:53   +67.9871  +061.8272   +41  209  -07 20:35:01   +67.4949  +059.2872   +42  206  -07 20:35:08   +66.9853  +056.8750   +43  203  -08 20:35:16   +66.4606  +054.5819   +44  200  -09 20:35:23   +65.9228  +052.3994   +45  198  -09 20:35:31   +65.3735  +050.3196   +45  195  -10 20:35:38   +64.8144  +048.3350   +46  193  -10 20:35:46   +64.2467  +046.4387   +47  191  -11 20:35:53   +63.6715  +044.6243   +48  188  -11 20:36:01   +63.0899  +042.8857   +48  186  -12 20:36:08   +62.5027  +041.2173   +49  184  -12 20:36:16   +61.9106  +039.6141   +50  181  -13 20:36:23   +61.3144  +038.0714   +50  179  -13 20:36:31   +60.7145  +036.5847   +51  177  -13 20:36:38   +60.1114  +035.1502   +51  175  -14 20:36:46   +59.5056  +033.7640   +52  173  -14 20:36:53   +58.8974  +032.4229   +52  171  -14 20:37:01   +58.2871  +031.1236   +53  169  -15 20:37:08   +57.6751  +029.8633   +53  167  -15 20:37:16   +57.0614  +028.6394   +54  165  -15 20:37:23   +56.4464  +027.4493   +54  163  -16 20:37:31   +55.8301  +026.2907   +54  161  -16 20:37:38   +55.2128  +025.1616   +55  159  -16 20:37:46   +54.5945  +024.0600   +55  156  -17 20:37:53   +53.9753  +022.9840   +55  154  -17 20:38:01   +53.3553  +021.9320   +56  152  -17 20:38:08   +52.7346  +020.9023   +56  150  -17 20:38:16   +52.1131  +019.8935   +56  148  -18 20:38:23   +51.4909  +018.9043   +56  146  -18 20:38:31   +50.8681  +017.9332   +57  144  -18 20:38:38   +50.2446  +016.9792   +57  142  -18 20:38:46   +49.6204  +016.0410   +57  140  -18 20:38:53   +48.9956  +015.1176   +57  138  -18 20:39:01   +48.3700  +014.2079   +57  136  -19 20:39:08   +47.7436  +013.3111   +57  135  -19 20:39:16   +47.1165  +012.4261   +57  133  -19 20:39:23   +46.4885  +011.5522   +57  131  -19 20:39:31   +45.8596  +010.6885   +57  129  -19 20:39:38   +45.2298  +009.8341   +57  127  -19 20:39:46   +44.5989  +008.9885   +57  125  -19 20:39:53   +43.9669  +008.1507   +57  123  -19 20:40:01   +43.3338  +007.3202   +57  121  -19 20:40:08   +42.6994  +006.4963   +56  119  -19 20:40:16   +42.0637  +005.6783   +56  118  -19 20:40:23   +41.4265  +004.8655   +56  116  -19 20:40:31   +40.7878  +004.0574   +56  114  -19 20:40:38   +40.1474  +003.2534   +55  112  -19 20:40:46   +39.5052  +002.4528   +55  111  -19 20:40:53   +38.8612  +001.6551   +55  109  -19 20:41:01   +38.2151  +000.8596   +54  108  -19 20:41:08   +37.5669  +000.0659   +54  106  -19 20:41:16   +36.9164  -000.7266   +54  104  -19 20:41:23   +36.2634  -001.5187   +53  103  -19 20:41:31   +35.6079  -002.3107   +53  101  -19 20:41:38   +34.9495  -003.1033   +52  100  -19 20:41:46   +34.2882  -003.8972   +52  099  -18 20:41:53   +33.6238  -004.6928   +51  097  -18 20:42:01   +32.9560  -005.4909   +51  096  -18 20:42:08   +32.2846  -006.2920   +50  095  -18 20:42:16   +31.6094  -007.0969   +49  093  -18 20:42:23   +30.9302  -007.9063   +49  092  -17 20:42:31   +30.2467  -008.7207   +48  091  -17 20:42:38   +29.5586  -009.5412   +47  090  -17 20:42:46   +28.8656  -010.3683   +47  089  -17 20:42:53   +28.1673  -011.2030   +46  088  -16 20:43:01   +27.4635  -012.0462   +45  087  -16 20:43:08   +26.7536  -012.8989   +45  085  -16 20:43:16   +26.0374  -013.7621   +44  084  -15 20:43:23   +25.3142  -014.6369   +43  084  -15 20:43:31   +24.5837  -015.5247   +42  083  -15 20:43:38   +23.8452  -016.4268   +41  082  -14 20:43:46   +23.0981  -017.3448   +40  081  -14 20:43:53   +22.3417  -018.2802   +39  080  -13 20:44:01   +21.5752  -019.2351   +38  079  -13 20:44:08   +20.7976  -020.2116   +37  078  -12 20:44:16   +20.0081  -021.2121   +36  078  -12 20:44:23   +19.2052  -022.2395   +35  077  -11 20:44:31   +18.3878  -023.2970   +34  076  -10 20:44:38   +17.5541  -024.3884   +33  075  -10 20:44:46   +16.7024  -025.5184   +32  075  -09 20:44:53   +15.8301  -026.6924   +30  074  -08 20:45:01   +14.9347  -027.9171   +29  073  -07 20:45:08   +14.0125  -029.2011   +28  073  -07 20:45:16   +13.0591  -030.5551   +26  072  -06 20:45:23   +12.0686  -031.9931   +24  072  -05 20:45:31   +11.0333  -033.5346   +23  071  -03 20:45:38   +09.9419  -035.2066   +21  071  -02 20:45:46   +08.7776  -037.0506   +19  070  -01 20:45:53   +07.5132  -039.1340   +16  070  +01 20:46:01   +06.0979  -041.5829   +14  069  +03 20:46:08   +04.4126  -044.6946   +10  069  +05 20:46:16   +01.9281  -049.7985   +05  069  +10

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +62.5707 +157.1661 +62.5300 +157.3737 +65.1728 +149.0797 +65.1615 +149.2369 +66.8451 +142.4820 +66.8453 +142.6213 +68.0710 +136.4739 +68.0783 +136.6018 +69.0056 +130.7930 +69.0179 +130.9116 +69.7226 +125.3338 +69.7388 +125.4438 +70.2651 +120.0517 +70.2845 +120.1530 +70.6613 +114.9309 +70.6834 +115.0234 +70.9319 +109.9700 +70.9561 +110.0536 +71.0928 +105.1746 +71.1187 +105.2491 +71.1572 +100.5527 +71.1845 +100.6182 +71.1364 +096.1123 +71.1648 +096.1690 +71.0403 +091.8595 +71.0696 +091.9076 +70.8778 +087.7979 +70.9077 +087.8379 +70.6566 +083.9284 +70.6869 +083.9608 +70.3839 +080.2491 +70.4144 +080.2745 +70.0658 +076.7558 +70.0965 +076.7748 +69.7082 +073.4427 +69.7389 +073.4557 +69.3158 +070.3021 +69.3464 +070.3099 +68.8932 +067.3258 +68.9236 +067.3288 +68.4441 +064.5048 +68.4744 +064.5035 +67.9721 +061.8297 +68.0021 +061.8247 +67.4801 +059.2913 +67.5097 +059.2830 +66.9707 +056.8806 +67.0000 +056.8694 +66.4461 +054.5888 +66.4751 +054.5749 +65.9085 +052.4074 +65.9370 +052.3913 +65.3594 +050.3286 +65.3876 +050.3105 +64.8005 +048.3449 +64.8283 +048.3251 +64.2330 +046.4494 +64.2604 +046.4281 +63.6580 +044.6356 +63.6850 +044.6129 +63.0766 +042.8976 +63.1032 +042.8737 +62.4896 +041.2297 +62.5158 +041.2049 +61.8977 +039.6270 +61.9235 +039.6013 +61.3016 +038.0846 +61.3271 +038.0581 +60.7019 +036.5983 +60.7270 +036.5712 +60.0990 +035.1640 +60.1237 +035.1363 +59.4934 +033.7781 +59.5178 +033.7499 +58.8854 +032.4371 +58.9094 +032.4086 +58.2753 +031.1381 +58.2990 +031.1092 +57.6634 +029.8779 +57.6867 +029.8488 +57.0499 +028.6541 +57.0729 +028.6247 +56.4350 +027.4641 +56.4577 +027.4345 +55.8190 +026.3056 +55.8413 +026.2758 +55.2018 +025.1765 +55.2239 +025.1467 +54.5836 +024.0749 +54.6054 +024.0450 +53.9646 +022.9990 +53.9861 +022.9690 +53.3447 +021.9470 +53.3659 +021.9169 +52.7241 +020.9174 +52.7451 +020.8872 +52.1028 +019.9086 +52.1234 +019.8784 +51.4807 +018.9193 +51.5012 +018.8892 +50.8580 +017.9483 +50.8782 +017.9181 +50.2346 +016.9942 +50.2546 +016.9641 +49.6106 +016.0560 +49.6303 +016.0259 +48.9858 +015.1326 +49.0053 +015.1025 +48.3603 +014.2229 +48.3796 +014.1929 +47.7341 +013.3261 +47.7531 +013.2961 +47.1071 +012.4411 +47.1258 +012.4111 +46.4792 +011.5671 +46.4978 +011.5372 +45.8504 +010.7034 +45.8688 +010.6735 +45.2207 +009.8490 +45.2388 +009.8192 +44.5899 +009.0033 +44.6079 +008.9736 +43.9581 +008.1656 +43.9758 +008.1359 +43.3250 +007.3350 +43.3426 +007.3054 +42.6907 +006.5111 +42.7081 +006.4815 +42.0551 +005.6930 +42.0723 +005.6635 +41.4180 +004.8802 +41.4350 +004.8508 +40.7794 +004.0721 +40.7962 +004.0427 +40.1391 +003.2680 +40.1557 +003.2387 +39.4970 +002.4674 +39.5134 +002.4382 +38.8531 +001.6697 +38.8693 +001.6405 +38.2071 +000.8742 +38.2232 +000.8451 +37.5589 +000.0805 +37.5749 +000.0514 +36.9085 -000.7121 +36.9243 -000.7412 +36.2556 -001.5041 +36.2712 -001.5332 +35.6002 -002.2962 +35.6156 -002.3252 +34.9419 -003.0888 +34.9571 -003.1179 +34.2807 -003.8826 +34.2957 -003.9117 +33.6163 -004.6783 +33.6312 -004.7073 +32.9486 -005.4764 +32.9633 -005.5054 +32.2773 -006.2775 +32.2919 -006.3066 +31.6022 -007.0824 +31.6166 -007.1115 +30.9231 -007.8917 +30.9373 -007.9208 +30.2397 -008.7062 +30.2537 -008.7353 +29.5516 -009.5266 +29.5655 -009.5558 +28.8587 -010.3537 +28.8724 -010.3829 +28.1605 -011.1883 +28.1741 -011.2177 +27.4568 -012.0315 +27.4701 -012.0609 +26.7470 -012.8841 +26.7602 -012.9136 +26.0309 -013.7472 +26.0439 -013.7769 +25.3078 -014.6220 +25.3206 -014.6518 +24.5774 -015.5097 +24.5900 -015.5397 +23.8390 -016.4118 +23.8514 -016.4419 +23.0920 -017.3296 +23.1042 -017.3600 +22.3357 -018.2650 +22.3477 -018.2955 +21.5693 -019.2197 +21.5810 -019.2506 +20.7919 -020.1960 +20.8034 -020.2272 +20.0024 -021.1964 +20.0137 -021.2279 +19.1998 -022.2235 +19.2107 -022.2554 +18.3825 -023.2808 +18.3931 -023.3131 +17.5490 -024.3720 +17.5593 -024.4048 +16.6974 -025.5016 +16.7073 -025.5351 +15.8254 -026.6753 +15.8349 -026.7095 +14.9301 -027.8996 +14.9392 -027.9346 +14.0082 -029.1831 +14.0168 -029.2191 +13.0551 -030.5365 +13.0631 -030.5737 +12.0650 -031.9738 +12.0723 -032.0125 +11.0301 -033.5143 +11.0365 -033.5548 +09.9392 -035.1852 +09.9446 -035.2281 +08.7756 -037.0275 +08.7796 -037.0737 +07.5122 -039.1085 +07.5142 -039.1595 +06.0985 -041.5535 +06.0972 -041.6124 +04.4166 -044.6570 +04.4086 -044.7323 +01.9481 -049.7207 +01.9075 -049.8776 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.