"Pseudo-MPEC" for A11Ht4d
Created 2026 Oct 2 15:35:03 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
Astrometry:
A11Ht4d*0C2026 09 29.89112322 58 54.029-15 46 50.63 ~A135 18.06oVNEOCPM22
A11Ht4d 0C2026 09 29.89382822 58 53.438-15 46 48.36 ~A135 18.07oVNEOCPM22
A11Ht4d 0C2026 09 29.89879722 58 52.500-15 46 43.46 ~A135 18.66oVNEOCPM22
A11Ht4d 0C2026 09 29.90787122 58 50.681-15 46 34.18 ~A135 17.84oVNEOCPM22
A11Ht4d* C2026 10 02.02365 23 01 44.10 -15 16 31.6 ~A2EZ 18.1 RXNEOCPX19
A11Ht4d C2026 10 02.02803 23 01 43.43 -15 16 30.0 ~A2EZ 18.3 RXNEOCPX19
A11Ht4d C2026 10 02.03241 23 01 42.77 -15 16 28.9 ~A2EZ 18.3 RXNEOCPX19
A11Ht4d C2026 10 02.03678 23 01 42.09 -15 16 27.4 ~A2EZ 18.4 RXNEOCPX19
A11Ht4d C2026 10 02.04487 23 01 40.83 -15 16 24.5 ~A2EZ 18.5 RXNEOCPX19
A11Ht4d KB2026 10 02.52139123 02 00.271-15 21 58.07 ~A2EZ 17.9 GXNEOCPQ06
A11Ht4d KB2026 10 02.52717423 01 59.185-15 21 53.95 ~A2EZ 18.3 GXNEOCPQ06
A11Ht4d KB2026 10 02.53281623 01 58.316-15 21 50.04 ~A2EZ 17.6 GXNEOCPQ06
Station data:
(M22) ATLAS South Africa, Sutherland (S32.380156 E20.810590) South Africa.
Observers L. Denneau, R. Siverd, J. Tonry, H. Weiland. Measurers L.
Denneau, N. Erasmus, A. Fitzsimmons, J. Robinson, R. Siverd, J. Tonry, H.
Weiland. 0.5-m f/2.0 Schmidt + CCD.
(Q06) Tarui Observatory, Tarui (N35.394791 E136.495470) Japan. Observer H.
Watanabe. 0.35-m f/1.9 Schmidt-Cassegrain + CMO.
(X19) Santel Observatory, El Leoncito (S31.802444 W69.326170) Argentina.
Observer A. Sankovich. 0.5-m f/1.5 reflector + CMOS.
Orbital elements: A11Ht4d
Perihelion 2026 Dec 4.428377 +/- 1 TT = 10:16:51.7 (JD 2461378.928377)
Epoch 2026 Oct 2.0 TT = JDT 2461315.5 Earth MOID: 0.0062 AutoNEOCP
M 299.005416197 +/- 0.9 (J2000 ecliptic)
n 0.961629267 +/- 0.000504 Peri. 313.633458 +/- 0.6
a 1.016555124 +/- 0.000355 Node 116.380991 +/- 1.5
e 0.00896000 +/- 0.000464 Incl. 0.111579 +/- 0.0010
P 1.025/374.358d H 26.74 G 0.15 U 7.6
q 1.007446787 +/- 0.000121 Q 1.025663462 +/- 0.00083
From 12 observations 2026 Sept. 29-Oct. 2; mean residual 0".36
Residuals in arcseconds: 260929 M22 .54+ .17+ 261002 X19 .66+ .10- 261002 X19 .27- .12- 260929 M22 .29- .12- 261002 X19 .07+ .22+ 261002 Q06 .20+ .12+ 260929 M22 .26+ .05- 261002 X19 .11- .05- 261002 Q06 .96- .11+ 260929 M22 .50- .01+ 261002 X19 .37- .03- 261002 Q06 .77+ .18- Ephemerides (geocentric): Date (UTC) HH RA Dec delta r elong mag " sig PA ---- -------- ------------ ------------ ------ ------ ----- --- -------- 2026 10 02 16 23 02 02.946 -15 11 10.39 .01289 1.0121 150.6 18.6 .541 38 2026 10 02 17 23 02 05.710 -15 10 34.95 .01290 1.0121 150.6 18.6 .607 39 2026 10 02 18 23 02 08.474 -15 09 59.50 .01291 1.0121 150.5 18.6 .674 40 2026 10 02 19 23 02 11.237 -15 09 24.04 .01292 1.0121 150.5 18.6 .743 41 2026 10 02 20 23 02 14.001 -15 08 48.57 .01293 1.0121 150.5 18.6 .814 41 2026 10 02 21 23 02 16.764 -15 08 13.09 .01294 1.0121 150.5 18.6 .887 42 2026 10 02 22 23 02 19.528 -15 07 37.60 .01295 1.0121 150.4 18.6 .961 42 2026 10 02 23 23 02 22.291 -15 07 02.10 .01296 1.0121 150.4 18.6 1.04 43 2026 10 03 00 23 02 25.054 -15 06 26.59 .01297 1.0121 150.4 18.6 1.11 43 2026 10 03 01 23 02 27.817 -15 05 51.06 .01298 1.0121 150.4 18.6 1.19 44 2026 10 03 02 23 02 30.581 -15 05 15.53 .01299 1.0121 150.3 18.6 1.28 44 2026 10 03 03 23 02 33.344 -15 04 39.98 .01300 1.0120 150.3 18.6 1.36 44 2026 10 03 04 23 02 36.107 -15 04 04.42 .01301 1.0120 150.3 18.6 1.44 44 2026 10 03 05 23 02 38.871 -15 03 28.85 .01302 1.0120 150.3 18.6 1.53 45 2026 10 03 06 23 02 41.634 -15 02 53.27 .01303 1.0120 150.2 18.6 1.62 45 2026 10 03 07 23 02 44.398 -15 02 17.67 .01304 1.0120 150.2 18.6 1.70 45 2026 10 03 08 23 02 47.161 -15 01 42.07 .01305 1.0120 150.2 18.6 1.79 45 2026 10 03 09 23 02 49.925 -15 01 06.45 .01306 1.0120 150.2 18.6 1.89 45 2026 10 03 10 23 02 52.689 -15 00 30.81 .01307 1.0120 150.1 18.6 1.98 46 2026 10 03 11 23 02 55.454 -14 59 55.17 .01308 1.0120 150.1 18.6 2.08 46 2026 10 03 12 23 02 58.218 -14 59 19.51 .01309 1.0120 150.1 18.6 2.17 46 2026 10 03 13 23 03 00.983 -14 58 43.83 .01310 1.0120 150.1 18.6 2.27 46 2026 10 03 14 23 03 03.748 -14 58 08.14 .01311 1.0120 150.0 18.6 2.37 46 2026 10 03 15 23 03 06.513 -14 57 32.44 .01312 1.0120 150.0 18.6 2.47 46 2026 10 03 16 23 03 09.279 -14 56 56.73 .01313 1.0120 150.0 18.6 2.58 46 2026 10 03 17 23 03 12.044 -14 56 21.00 .01314 1.0120 150.0 18.7 2.68 46 2026 10 03 18 23 03 14.811 -14 55 45.25 .01315 1.0120 149.9 18.7 2.79 46 2026 10 03 19 23 03 17.577 -14 55 09.49 .01316 1.0120 149.9 18.7 2.89 46 2026 10 03 20 23 03 20.344 -14 54 33.72 .01317 1.0119 149.9 18.7 3.00 46 2026 10 03 21 23 03 23.112 -14 53 57.93 .01318 1.0119 149.9 18.7 3.11 47 2026 10 03 22 23 03 25.880 -14 53 22.12 .01319 1.0119 149.8 18.7 3.23 47 2026 10 03 23 23 03 28.648 -14 52 46.30 .01320 1.0119 149.8 18.7 3.34 47 2026 10 04 00 23 03 31.417 -14 52 10.47 .01321 1.0119 149.8 18.7 3.45 47 2026 10 04 01 23 03 34.187 -14 51 34.62 .01322 1.0119 149.8 18.7 3.57 47 2026 10 04 02 23 03 36.957 -14 50 58.75 .01323 1.0119 149.8 18.7 3.69 47 2026 10 04 03 23 03 39.727 -14 50 22.86 .01324 1.0119 149.7 18.7 3.81 47 2026 10 04 04 23 03 42.499 -14 49 46.96 .01325 1.0119 149.7 18.7 3.93 47 2026 10 04 05 23 03 45.271 -14 49 11.05 .01326 1.0119 149.7 18.7 4.05 47 2026 10 04 06 23 03 48.043 -14 48 35.11 .01327 1.0119 149.7 18.7 4.18 47 2026 10 04 07 23 03 50.816 -14 47 59.16 .01328 1.0119 149.6 18.7 4.30 47 2026 10 04 08 23 03 53.590 -14 47 23.19 .01329 1.0119 149.6 18.7 4.43 47 2026 10 04 09 23 03 56.365 -14 46 47.20 .01330 1.0119 149.6 18.7 4.56 47 2026 10 04 10 23 03 59.140 -14 46 11.20 .01331 1.0119 149.6 18.7 4.69 47 2026 10 04 11 23 04 01.916 -14 45 35.17 .01332 1.0119 149.5 18.7 4.82 47 2026 10 04 12 23 04 04.693 -14 44 59.13 .01333 1.0119 149.5 18.7 4.95 47 2026 10 04 13 23 04 07.471 -14 44 23.07 .01334 1.0118 149.5 18.7 5.09 47 2026 10 04 14 23 04 10.250 -14 43 47.00 .01335 1.0118 149.5 18.7 5.22 47 2026 10 04 15 23 04 13.029 -14 43 10.90 .01335 1.0118 149.4 18.7 5.36 47