"Pseudo-MPEC" for RdSH500
Created 2026 Sep 14 2:35:32 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
Astrometry:
RdSH500*KB2026 09 12.06437500 10 42.118+19 00 30.45 ~9CF5x20.6 VZNEOCPY89
RdSH500 KB2026 09 12.07866900 10 42.241+18 59 41.01 ~9CF5 20.7 VZNEOCPY89
RdSH500 KB2026 09 12.09296300 10 42.268+18 58 53.34 ~9CF5 20.6 VZNEOCPY89
RdSH500 KB2026 09 12.97306100 11 51.844+18 07 17.14 ~9D5K 20.3 VZNEOCPY89
RdSH500 KB2026 09 12.98739600 11 52.007+18 06 24.12 ~9D5K 20.8 VZNEOCPY89
RdSH500 KB2026 09 13.00171300 11 52.359+18 05 23.13 ~9D5Kx19.4 VZNEOCPY89
RdSH500 KC2026 09 13.13502400 11 50.92 +17 56 27.9 ~9D3o 20.2 GVNEOCPL01
RdSH500 KC2026 09 13.13820300 11 51.06 +17 56 13.9 ~9D3o 20.6 GVNEOCPL01
RdSH500 KC2026 09 13.14116900 11 51.15 +17 56 02.3 ~9D3o 20.9 GVNEOCPL01
RdSH500 1C2026 09 13.20945300 12 13.648+17 52 16.50 ~9D5K 20.60GVNEOCPI52
RdSH500 1C2026 09 13.21131600 12 13.756+17 52 08.90 ~9D5K 19.60GVNEOCPI52
RdSH500 1C2026 09 13.21318000 12 13.788+17 52 01.78 ~9D5K 20.82GVNEOCPI52
RdSH500 KC2026 09 13.94422000 13 10.43 +16 59 08.7 ~9DNZ 19.8 GXNEOCP958
RdSH500 KC2026 09 13.95080100 13 10.49 +16 58 37.6 ~9DNZ 19.6 GXNEOCP958
RdSH500 KB2026 09 13.95104 00 13 05.83 +16 58 32.5 ~9DNZ 19.7 GXNEOCPL04
RdSH500 KC2026 09 13.95737300 13 10.74 +16 58 09.2 ~9DNZ 19.6 GXNEOCP958
RdSH500 KB2026 09 13.96383 00 13 06.10 +16 57 33.3 ~9DNZ 19.6 GXNEOCPL04
RdSH500 KB2026 09 13.96708300 13 12.100+16 57 27.58 ~9E1Z 19.3 VZNEOCPY89
RdSH500 KB2026 09 13.98138300 13 12.358+16 56 22.90 ~9E1Z 18.6 VZNEOCPY89
RdSH500 KB2026 09 13.99568300 13 12.680+16 55 18.46 ~9E1Z 19.0 VZNEOCPY89
RdSH500 C2026 09 14.04370 00 13 10.82 +16 51 28.5 ~9E1o 20.8 rXNEOCP511
RdSH500 C2026 09 14.04581 00 13 10.90 +16 51 18.6 ~9E1o 21.5 rXNEOCP511
RdSH500 C2026 09 14.04791 00 13 10.91 +16 51 08.3 ~9E1o 20.7 rXNEOCP511
RdSH500 C2026 09 14.05001 00 13 10.91 +16 50 58.2 ~9E1o 20.7 rXNEOCP511
RdSH500 C2026 09 14.05211 00 13 10.97 +16 50 48.6 ~9E1o 21.2 rXNEOCP511
Station data:
(511) Haute Provence (N43.931873 E5.715700) France. Observers W.
Polycarpe, M. Dennefield, W. Thuillot, B. Carry, P. David, S. Bouquillon,
F. Taris, P. Tanga, M. Delbó, E. Saquet, V. Robert. Measurers W. Thuillot,
S. Bouquillon, F. Taris, T. Carlucci, C. Barache. 1.20-m f/6 reflector +
CCD.
(958) Observatoire de Dax (N43.693381 W1.030530) France. Observer P.
Dupouy. 0.32-m Schmidt-Cassegrain.
(I52) Steward Observatory, Mt. Lemmon Station (N32.442570 W110.788920)
US/Arizona. Measurers T. Beuden, V. F. Carvajal, D. Fay, J. B. Fazekas, D.
C. Fuls, A. R. Gibbs, A. D. Grauer, H. Gröller, J. K. Hogan, R. A.
Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L. Seaman, F. C.
Shelly, K. W. Wierzchoś. 1.0-m prime focus + CCD.
(L01) Višnjan Observatory, Tičan (N45.290897 E13.749300) Croatia.
Observers K. Korlević, L. Poropat. Measurer K. Korlevic. 1.0-m f/2.9
reflector + CCD.
(L04) ROASTERR-1 Observatory, Cluj-Napoca (N46.820952 E23.596400) Romania.
Observer L. Hudin. 0.1-m f/9 refractor + CCD.
(Y89) Proxima Centauri Observatory, Valdin (N42.222443 W6.988110) Spain.
Observer R. Hahn. 0.36-m f/2.0 reflector + CMO.
Orbital elements: RdSH500
Perihelion 2026 Dec 17.420551 +/- 0.0448 TT = 10:05:35.6 (JD 2461391.920551)
Epoch 2026 Sep 14.0 TT = JDT 2461297.5 Earth MOID: 0.0095 AutoNEOCP
M 264.177890961 +/- 0.048 (J2000 ecliptic)
n 1.014843781 +/- 0.000102 Peri. 293.741023 +/- 0.010
a 0.980700927 +/- 6.59e-5 Node 176.248325 +/- 0.0035
e 0.20966761 +/- 0.000403 Incl. 6.344166 +/- 0.012
P 0.971/354.728d H 26.15 G 0.15 U 6.6
q 0.775079703 +/- 0.000387 Q 1.186322152 +/- 0.000421
23 of 25 observations 2026 Sept. 12-14 (47.4 hr); mean residual 0".40
Residuals in arcseconds: 260912 Y89( .45- 3.3+) 260913 I52 .92- .32+ 260913 Y89 .55- .44- 260912 Y89 .47+ .36+ 260913 I52 .00 .30- 260913 Y89 .28+ .22+ 260912 Y89 .15- .30- 260913 I52 .15- .44- 260914 511 .24- .00 260912 Y89 .65+ .21+ 260913 958 .86+ .83+ 260914 511 .41+ .18+ 260912 Y89 .10+ .11+ 260913 958 .62- .82- 260914 511 .05+ .06- 260913 Y89( 2.7+ 7.5-) 260913 L04 .28- .02- 260914 511 .45- .10- 260913 L01 .29- .25+ 260913 958 .77+ .30+ 260914 511 .11- .38+ 260913 L01 .10+ .51- 260913 L04 .24+ .04- 260913 L01 .15- .26+ 260913 Y89 .10+ .30- Ephemerides (geocentric): Date (UTC) HH RA Dec delta r elong mag " sig PA ---- -------- ------------ ------------ ------ ------ ----- --- -------- 2026 09 14 03 00 13 20.113 +16 46 45.55 .03841 1.0414 156.6 20.2 .203 164 2026 09 14 04 00 13 23.803 +16 43 25.29 .03825 1.0413 156.7 20.2 .206 164 2026 09 14 05 00 13 27.518 +16 40 03.29 .03810 1.0411 156.8 20.2 .209 163 2026 09 14 06 00 13 31.258 +16 36 39.54 .03794 1.0410 156.8 20.2 .211 163 2026 09 14 07 00 13 35.024 +16 33 14.02 .03778 1.0409 156.9 20.2 .214 163 2026 09 14 08 00 13 38.814 +16 29 46.70 .03763 1.0407 157.0 20.2 .217 162 2026 09 14 09 00 13 42.631 +16 26 17.56 .03747 1.0406 157.1 20.2 .220 162 2026 09 14 10 00 13 46.474 +16 22 46.59 .03732 1.0405 157.1 20.2 .223 162 2026 09 14 11 00 13 50.343 +16 19 13.75 .03716 1.0403 157.2 20.2 .226 161 2026 09 14 12 00 13 54.239 +16 15 39.04 .03701 1.0402 157.3 20.1 .229 161 2026 09 14 13 00 13 58.162 +16 12 02.43 .03685 1.0400 157.4 20.1 .233 161 2026 09 14 14 00 14 02.112 +16 08 23.89 .03670 1.0399 157.4 20.1 .236 160 2026 09 14 15 00 14 06.091 +16 04 43.40 .03654 1.0398 157.5 20.1 .240 160 2026 09 14 16 00 14 10.097 +16 01 00.94 .03639 1.0396 157.6 20.1 .243 160 2026 09 14 17 00 14 14.132 +15 57 16.49 .03623 1.0395 157.7 20.1 .247 160 2026 09 14 18 00 14 18.196 +15 53 30.01 .03608 1.0394 157.7 20.1 .251 159 2026 09 14 19 00 14 22.289 +15 49 41.50 .03592 1.0392 157.8 20.1 .255 159 2026 09 14 20 00 14 26.412 +15 45 50.91 .03577 1.0391 157.9 20.0 .259 159 2026 09 14 21 00 14 30.565 +15 41 58.23 .03561 1.0389 158.0 20.0 .263 159 2026 09 14 22 00 14 34.748 +15 38 03.43 .03546 1.0388 158.1 20.0 .267 158 2026 09 14 23 00 14 38.961 +15 34 06.49 .03530 1.0387 158.1 20.0 .271 158 2026 09 15 00 00 14 43.206 +15 30 07.37 .03515 1.0385 158.2 20.0 .276 158 2026 09 15 01 00 14 47.483 +15 26 06.06 .03500 1.0384 158.3 20.0 .280 158 2026 09 15 02 00 14 51.791 +15 22 02.52 .03484 1.0383 158.4 20.0 .285 157 2026 09 15 03 00 14 56.132 +15 17 56.72 .03469 1.0381 158.5 20.0 .290 157 2026 09 15 04 00 15 00.506 +15 13 48.64 .03453 1.0380 158.5 19.9 .295 157 2026 09 15 05 00 15 04.912 +15 09 38.25 .03438 1.0378 158.6 19.9 .300 157 2026 09 15 06 00 15 09.353 +15 05 25.53 .03423 1.0377 158.7 19.9 .305 157 2026 09 15 07 00 15 13.827 +15 01 10.43 .03407 1.0376 158.8 19.9 .310 157 2026 09 15 08 00 15 18.336 +14 56 52.93 .03392 1.0374 158.9 19.9 .316 156 2026 09 15 09 00 15 22.880 +14 52 32.99 .03376 1.0373 159.0 19.9 .321 156 2026 09 15 10 00 15 27.459 +14 48 10.60 .03361 1.0372 159.1 19.9 .327 156 2026 09 15 11 00 15 32.074 +14 43 45.71 .03346 1.0370 159.1 19.9 .333 156 2026 09 15 12 00 15 36.726 +14 39 18.30 .03330 1.0369 159.2 19.8 .339 156 2026 09 15 13 00 15 41.415 +14 34 48.33 .03315 1.0367 159.3 19.8 .345 156 2026 09 15 14 00 15 46.140 +14 30 15.76 .03300 1.0366 159.4 19.8 .351 156 2026 09 15 15 00 15 50.904 +14 25 40.57 .03284 1.0365 159.5 19.8 .358 156 2026 09 15 16 00 15 55.706 +14 21 02.71 .03269 1.0363 159.6 19.8 .365 156 2026 09 15 17 00 16 00.547 +14 16 22.16 .03254 1.0362 159.7 19.8 .371 156 2026 09 15 18 00 16 05.427 +14 11 38.88 .03239 1.0360 159.7 19.8 .378 155 2026 09 15 19 00 16 10.347 +14 06 52.82 .03223 1.0359 159.8 19.8 .386 155 2026 09 15 20 00 16 15.308 +14 02 03.96 .03208 1.0358 159.9 19.7 .393 155 2026 09 15 21 00 16 20.310 +13 57 12.26 .03193 1.0356 160.0 19.7 .400 155 2026 09 15 22 00 16 25.353 +13 52 17.67 .03178 1.0355 160.1 19.7 .408 155 2026 09 15 23 00 16 30.438 +13 47 20.16 .03162 1.0354 160.2 19.7 .416 155 2026 09 16 00 00 16 35.566 +13 42 19.70 .03147 1.0352 160.3 19.7 .424 155 2026 09 16 01 00 16 40.738 +13 37 16.22 .03132 1.0351 160.4 19.7 .432 155 2026 09 16 02 00 16 45.953 +13 32 09.71 .03117 1.0349 160.5 19.7 .441 155