"Pseudo-MPEC" for P21XSix
Created 2024 Sep 5 16:22:26 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
Astrometry:
P21XSix 5C2004 05 25.37186915 08 50.10 -19 38 41.3 ~953Mx WNEOCPT14
P21XSix &C2013 05 07.32341517 37 25.11 -29 36 13.9 ~953M WNEOCPW84
P21XSix &C2013 05 07.32462817 37 25.11 -29 36 13.9 ~953M WNEOCPW84
P21XSix &C2013 05 07.32582317 37 25.09 -29 36 13.9 ~953M WNEOCPW84
P21XSix &C2013 05 07.32702617 37 25.07 -29 36 13.9 ~953M WNEOCPW84
P21XSix C2020 06 15.53140 20 31 04.710-28 06 12.84 ~952M 21.6 wUNEOCPF51
P21XSix C2020 06 15.55205 20 31 04.533-28 06 13.82 ~952M 21.9 wUNEOCPF51
P21XSix C2020 06 15.56239 20 31 04.410-28 06 14.61 ~952M 21.8 wUNEOCPF51
P21XSix C2021 06 13.56337 21 02 59.488-26 09 23.21 ~952M 21.3 wUNEOCPF51
P21XSix C2021 06 13.57443 21 02 59.395-26 09 23.98 ~952M 21.3 wUNEOCPF51
P21XSix C2021 06 13.58500 21 02 59.343-26 09 24.50 ~952M 21.5 wUNEOCPF51
P21XSix* C2024 09 03.38169022 31 37.473-18 16 31.31 ~93G7 21.09wXNEOCPF52
P21XSix C2024 09 03.39353122 31 37.283-18 16 32.01 ~93G7 20.82wXNEOCPF52
P21XSix C2024 09 03.40536822 31 37.135-18 16 32.66 ~93G7 20.81wXNEOCPF52
P21XSix C2024 09 03.41721622 31 36.948-18 16 33.65 ~93G7 20.74wXNEOCPF52
P21XSix 1C2024 09 04.25099222 31 25.36 -18 17 27.4 ~950M 20.1 GVNEOCPW87
P21XSix 1C2024 09 04.25413222 31 25.31 -18 17 27.7 ~950M 20.1 GVNEOCPW87
P21XSix 1C2024 09 04.25747922 31 25.27 -18 17 27.8 ~950M 20.2 GVNEOCPW87
P21XSix 1C2024 09 04.26064622 31 25.22 -18 17 28.1 ~950M 20.1 GVNEOCPW87
Station data:
(F51) Pan-STARRS 1, Haleakala (N20.707234 W156.255910) US/Hawaii.
Observers J. Bulger, T. Lowe, A. Schultz, M. Willman. Measurers K.
Chambers, S. Chastel, T. de Boer, L. Denneau, J. Fairlamb, H. Flewelling,
M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R. Weryk.
1.8-m Ritchey-Chrétien + CCD.
(F52) Pan-STARRS 2, Haleakala (N20.707382 W156.255910) US/Hawaii.
Observers J. Bulger, T. Dukes, T. Lowe, A. Schultz, M. Willman. Measurers
K. Chambers, S. Chastel, T. de Boer, L. Denneau, J. Fairlamb, H.
Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat,
R. Weryk. 1.8-m Ritchey-Chrétien + CCD.
(T14) Mauna Kea-UH/Tholen NEO Follow-Up (CFHT) (N19.825252 W155.468876)
US/Hawaii. Observer S. Deen. 3.6-m Canada-France-Hawaii Telescope.
(W84) Cerro Tololo-DECam (S30.169594 W70.806420) Chile. Observer S. Deen.
4.0-m reflector + CCD.
(W87) Cerro Tololo-LCO C (S30.167454 W70.804680) Chile. Observer J. D.
Armstrong. Measurer T. Lister. 1.0-m f/8.0 Ritchey-Chrétien + CCD.
Orbital elements: P21XSix
Perihelion 2029 Dec 23.18664 +/- 0.376 TT = 4:28:45 (JD 2462493.68664)
Epoch 2024 Sep 4.0 TT = JDT 2460557.5 AutoNEOCP
M 331.52845610 +/- 0.011 (J2000 ecliptic)
n 0.01470495 +/- 2.88e-6 Peri. 349.61944 +/- 0.015
a 16.5003636 +/- 0.00215 Node 38.36598 +/- 0.00036
e 0.3247895 +/- 2.56e-5 Incl. 8.49508 +/- 0.000020
P 67.02553 H 9.68 G 0.15 U 4.3
q 11.1412184 +/- 0.00103 Q 21.8595089 +/- 0.00328
18 of 19 observations 2013 May 7-2024 Sept. 4; mean residual 0".13
Residuals in arcseconds: 040525 T14( 1.2+ .39-) 200615 F51 .20- .03- 240903 F52 .12- .11- 130507 W84 .05- .27- 210613 F51 .08+ .10+ 240904 W87 .08+ .00 130507 W84 .09+ .25- 210613 F51 .17- .03- 240904 W87 .00 .10- 130507 W84 .03- .24- 210613 F51 .09+ .06+ 240904 W87 .10+ .02+ 130507 W84 .15- .22- 240903 F52 .16+ .12- 240904 W87 .03+ .08- 200615 F51 .02- .02- 240903 F52 .14- .03- 200615 F51 .16+ .17+ 240903 F52 .15+ .10+ Ephemerides (geocentric): Date (UTC) HH RA Dec delta r elong mag " sig PA ---- -------- ------------ ------------ ------ ------ ----- --- -------- 2024 09 05 16 22 31 05.771 -18 18 58.38 11.445 12.428 166.5 20.6 .014 53 2024 09 05 17 22 31 05.196 -18 19 01.02 11.445 12.428 166.5 20.6 .014 53 2024 09 05 18 22 31 04.620 -18 19 03.66 11.445 12.428 166.5 20.6 .014 54 2024 09 05 19 22 31 04.045 -18 19 06.29 11.446 12.428 166.4 20.6 .015 54 2024 09 05 20 22 31 03.469 -18 19 08.93 11.446 12.428 166.4 20.6 .015 55 2024 09 05 21 22 31 02.894 -18 19 11.56 11.446 12.428 166.4 20.6 .016 55 2024 09 05 22 22 31 02.319 -18 19 14.18 11.446 12.428 166.3 20.6 .016 55 2024 09 05 23 22 31 01.743 -18 19 16.81 11.446 12.428 166.3 20.6 .016 56 2024 09 06 00 22 31 01.168 -18 19 19.44 11.446 12.428 166.3 20.6 .017 56 2024 09 06 01 22 31 00.593 -18 19 22.06 11.446 12.428 166.2 20.6 .017 57 2024 09 06 02 22 31 00.018 -18 19 24.68 11.446 12.427 166.2 20.6 .018 57 2024 09 06 03 22 30 59.444 -18 19 27.30 11.446 12.427 166.2 20.6 .018 57 2024 09 06 04 22 30 58.869 -18 19 29.91 11.446 12.427 166.1 20.6 .019 58 2024 09 06 05 22 30 58.294 -18 19 32.53 11.446 12.427 166.1 20.6 .019 58 2024 09 06 06 22 30 57.720 -18 19 35.14 11.447 12.427 166.1 20.6 .019 58 2024 09 06 07 22 30 57.145 -18 19 37.75 11.447 12.427 166.0 20.6 .020 58 2024 09 06 08 22 30 56.571 -18 19 40.36 11.447 12.427 166.0 20.6 .020 59 2024 09 06 09 22 30 55.996 -18 19 42.96 11.447 12.427 166.0 20.6 .021 59 2024 09 06 10 22 30 55.422 -18 19 45.57 11.447 12.427 165.9 20.6 .021 59 2024 09 06 11 22 30 54.848 -18 19 48.17 11.447 12.427 165.9 20.6 .021 59 2024 09 06 12 22 30 54.274 -18 19 50.77 11.447 12.427 165.9 20.6 .022 60 2024 09 06 13 22 30 53.700 -18 19 53.37 11.447 12.427 165.8 20.6 .022 60 2024 09 06 14 22 30 53.126 -18 19 55.96 11.447 12.427 165.8 20.6 .023 60 2024 09 06 15 22 30 52.553 -18 19 58.56 11.447 12.427 165.8 20.6 .023 60 2024 09 06 16 22 30 51.979 -18 20 01.15 11.448 12.427 165.7 20.6 .024 61 2024 09 06 17 22 30 51.405 -18 20 03.74 11.448 12.427 165.7 20.6 .024 61 2024 09 06 18 22 30 50.832 -18 20 06.32 11.448 12.427 165.7 20.6 .024 61 2024 09 06 19 22 30 50.258 -18 20 08.91 11.448 12.427 165.6 20.6 .025 61 2024 09 06 20 22 30 49.685 -18 20 11.49 11.448 12.427 165.6 20.6 .025 61 2024 09 06 21 22 30 49.112 -18 20 14.08 11.448 12.427 165.6 20.6 .026 61 2024 09 06 22 22 30 48.539 -18 20 16.65 11.448 12.426 165.5 20.6 .026 62 2024 09 06 23 22 30 47.966 -18 20 19.23 11.448 12.426 165.5 20.6 .027 62 2024 09 07 00 22 30 47.393 -18 20 21.81 11.448 12.426 165.4 20.6 .027 62 2024 09 07 01 22 30 46.820 -18 20 24.38 11.448 12.426 165.4 20.6 .027 62 2024 09 07 02 22 30 46.247 -18 20 26.95 11.449 12.426 165.4 20.6 .028 62 2024 09 07 03 22 30 45.675 -18 20 29.52 11.449 12.426 165.3 20.6 .028 62 2024 09 07 04 22 30 45.102 -18 20 32.09 11.449 12.426 165.3 20.6 .029 62 2024 09 07 05 22 30 44.530 -18 20 34.65 11.449 12.426 165.3 20.6 .029 63 2024 09 07 06 22 30 43.958 -18 20 37.21 11.449 12.426 165.2 20.6 .030 63 2024 09 07 07 22 30 43.385 -18 20 39.78 11.449 12.426 165.2 20.6 .030 63 2024 09 07 08 22 30 42.813 -18 20 42.33 11.449 12.426 165.2 20.6 .030 63 2024 09 07 09 22 30 42.241 -18 20 44.89 11.449 12.426 165.1 20.6 .031 63 2024 09 07 10 22 30 41.669 -18 20 47.44 11.449 12.426 165.1 20.6 .031 63 2024 09 07 11 22 30 41.097 -18 20 50.00 11.450 12.426 165.1 20.6 .032 63 2024 09 07 12 22 30 40.526 -18 20 52.55 11.450 12.426 165.0 20.6 .032 63 2024 09 07 13 22 30 39.954 -18 20 55.09 11.450 12.426 165.0 20.6 .033 63 2024 09 07 14 22 30 39.383 -18 20 57.64 11.450 12.426 165.0 20.6 .033 64 2024 09 07 15 22 30 38.811 -18 21 00.18 11.450 12.426 164.9 20.6 .033 64