"Pseudo-MPEC" for P21Xilh
Created 2024 Aug 16 1:22:09 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
Astrometry: P21Xilh* C2024 08 13.44820123 21 35.892+08 57 09.27 ~8DCb 21.54wXNEOCPF52 P21Xilh C2024 08 13.45803623 21 35.934+08 57 22.72 ~8DCb 21.50wXNEOCPF52 P21Xilh C2024 08 13.46789823 21 35.980+08 57 36.67 ~8DCb 21.43wXNEOCPF52 P21Xilh C2024 08 13.52811423 21 36.223+08 59 00.93 ~8DK7 21.67GVNEOCPF52 P21Xilh C2024 08 13.52876923 21 36.239+08 59 01.78 ~8DK7 21.43GVNEOCPF52 P21Xilh KC2024 08 14.02874423 21 41.12 +09 10 37.0 ~8E37 20.9 GVNEOCPL01 P21Xilh KC2024 08 14.03884423 21 41.13 +09 10 51.7 ~8E37 20.9 GVNEOCPL01 P21Xilh KC2024 08 14.09379023 21 41.35 +09 12 09.3 ~8E37 21.2 GVNEOCPL01 P21Xilh KC2024 08 14.09715223 21 41.35 +09 12 13.9 ~8E37 21.2 GVNEOCPL01 P21Xilh KC2024 08 14.10135723 21 41.36 +09 12 20.4 ~8E37 20.8 GVNEOCPL01 P21Xilh KC2024 08 14.28628323 21 43.42 +09 16 41.5 ~8E7M 21.5 GVNEOCPH21 P21Xilh KC2024 08 14.28917423 21 43.43 +09 16 45.4 ~8E7M 21.6 GVNEOCPH21 P21Xilh KC2024 08 14.29110123 21 43.44 +09 16 48.0 ~8E7M 21.5 GVNEOCPH21 P21Xilh KC2024 08 15.00341323 21 49.14 +09 33 37.8 ~8F0q 21.5 GVNEOCP104 P21Xilh KB2024 08 15.01656 23 21 49.15 +09 33 56.7 ~8F77 21.5 GVNEOCP204 P21Xilh KB2024 08 15.05884 23 21 49.29 +09 34 57.2 ~8F77 VNEOCP204 P21Xilh KB2024 08 15.10114 23 21 49.39 +09 35 57.5 ~8F77 VNEOCP204 P21Xilh KC2024 08 15.31892 23 21 51.44 +09 41 08.5 ~8FGM 21.4 VNEOCPU63 P21Xilh KC2024 08 15.36787 23 21 51.57 +09 42 18.8 ~8FGM 22.1 VNEOCPU63 P21Xilh KC2024 08 15.39107 23 21 51.60 +09 42 51.8 ~8FGM 20.8 VNEOCPU63 P21Xilh KC2024 08 15.41027 23 21 51.68 +09 43 19.7 ~8FGM 21.3 VNEOCPU63 P21Xilh 1C2024 08 15.44419423 21 52.264+09 44 14.65 ~8FMq 21.40GVNEOCPT12 P21Xilh 1C2024 08 15.44656423 21 52.261+09 44 17.93 ~8FMq 21.53GVNEOCPT12 P21Xilh 1C2024 08 15.44970423 21 52.270+09 44 22.60 ~8FMq 21.32GVNEOCPT12 Station data: (104) San Marcello Pistoiese (N44.064178 E10.803750) Italy. Observers P. Bacci, M. Maestripieri. Measurers P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD. (204) Schiaparelli Observatory (N45.868292 E8.769720) Italy. Observer L. Buzzi. 0.60-m f/4.64 Newtonian + CCD0.84-m f/3.5 reflector + 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. (H21) Astronomical Research Observatory, Westfield (N39.483054 W87.968270) US/Illinois. Observer R. Holmes. Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.76-m f/3.0 astrograph + CCD0.81-m f/4.0 astrograph + CCD0.61-m f/4.5 astrograph + CCD0.40-m f/5.32 astrograph + CCD. (L01) Višnjan Observatory, Tičan (N45.290897 E13.749300) Croatia. Observers K. Korlević, D. Pujagic, V. Dobos. Measurers D. Pujagic, K. Korlević. 1.0-m f/2.9 reflector + CCD. (T12) Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m) (N19.822991 W155.469434) US/Hawaii. Observer R. Weryk. 2.24-m f/10.1 University of Hawaii reflector. (U63) Burnt Tree Hill Observatory, Cle Elum (N47.162712 W120.805440) US/Washington. Observers B. Vandeventer, R. Morrison, N. Saini, C. Zhai, R. Trahan, M. Shao. 0.28-m f/2.2 reflector + CCD. Orbital elements: P21Xilh Perihelion 2024 Nov 13.98398 +/- 0.308 TT = 23:36:55 (JD 2460628.48398) Epoch 2024 Aug 15.0 TT = JDT 2460537.5 Earth MOID: 0.2128 Ma: 0.0926 M 336.75549330 +/- 1.5 (J2000 ecliptic) AutoNEOCP n 0.25547912 +/- 0.0165 Peri. 106.69199 +/- 1.0 a 2.45979604 +/- 0.106 Node 301.82376 +/- 0.58 e 0.5380431 +/- 0.019 Incl. 8.86813 +/- 0.23 P 3.85788 H 20.78 G 0.15 U 10.0 q 1.13631970 +/- 0.00807 Q 3.78327238 +/- 0.209 From 24 observations 2024 Aug. 13-15; mean residual 0".33
Residuals in arcseconds: 240813 F52 .07- .17+ 240814 L01 .25- .36+ 240815 204 .42+ .14+ 240813 F52 .10- .16- 240814 L01 .39- .95+ 240815 U63 .26- .16+ 240813 F52 .05- .03- 240814 H21 .11- .13- 240815 U63 .20- .11+ 240813 F52 .06- .01+ 240814 H21 .12- .32- 240815 U63 .52- .20- 240813 F52 .14+ .05- 240814 H21 .08- .45- 240815 U63 .07+ .16+ 240814 L01 .89+ .33- 240815 104 .89+ .52- 240815 T12 .00 .04+ 240814 L01 .37+ .15+ 240815 204 .21+ .00 240815 T12 .07- .09- 240814 L01 .02- .48+ 240815 204 .61+ .13+ 240815 T12 .03+ .06+ Ephemerides (geocentric): Date (UTC) HH RA Dec delta r elong mag " sig PA ---- -------- ------------ ------------ ------ ------ ----- --- -------- 2024 08 16 01 23 21 55.422 +09 58 38.10 .56981 1.5181 145.8 21.5 .475 67 2024 08 16 02 23 21 55.644 +09 59 38.39 .56942 1.5178 145.8 21.5 .508 66 2024 08 16 03 23 21 55.862 +10 00 38.71 .56903 1.5175 145.9 21.5 .543 65 2024 08 16 04 23 21 56.078 +10 01 39.06 .56863 1.5173 145.9 21.5 .578 64 2024 08 16 05 23 21 56.290 +10 02 39.45 .56824 1.5170 145.9 21.5 .614 64 2024 08 16 06 23 21 56.499 +10 03 39.87 .56785 1.5167 145.9 21.5 .652 63 2024 08 16 07 23 21 56.705 +10 04 40.33 .56746 1.5164 146.0 21.5 .690 62 2024 08 16 08 23 21 56.908 +10 05 40.82 .56707 1.5161 146.0 21.5 .729 62 2024 08 16 09 23 21 57.108 +10 06 41.34 .56668 1.5159 146.0 21.5 .769 61 2024 08 16 10 23 21 57.305 +10 07 41.90 .56629 1.5156 146.0 21.5 .811 61 2024 08 16 11 23 21 57.498 +10 08 42.50 .56590 1.5153 146.1 21.5 .853 60 2024 08 16 12 23 21 57.689 +10 09 43.12 .56551 1.5150 146.1 21.5 .896 60 2024 08 16 13 23 21 57.876 +10 10 43.79 .56512 1.5147 146.1 21.5 .940 59 2024 08 16 14 23 21 58.060 +10 11 44.48 .56473 1.5145 146.1 21.5 .985 59 2024 08 16 15 23 21 58.241 +10 12 45.22 .56434 1.5142 146.2 21.5 1.03 58 2024 08 16 16 23 21 58.419 +10 13 45.98 .56395 1.5139 146.2 21.5 1.08 58 2024 08 16 17 23 21 58.593 +10 14 46.78 .56357 1.5136 146.2 21.5 1.13 58 2024 08 16 18 23 21 58.765 +10 15 47.62 .56318 1.5133 146.2 21.5 1.17 57 2024 08 16 19 23 21 58.933 +10 16 48.49 .56279 1.5131 146.3 21.5 1.22 57 2024 08 16 20 23 21 59.098 +10 17 49.39 .56240 1.5128 146.3 21.5 1.27 57 2024 08 16 21 23 21 59.260 +10 18 50.33 .56202 1.5125 146.3 21.5 1.33 57 2024 08 16 22 23 21 59.419 +10 19 51.30 .56163 1.5122 146.3 21.5 1.38 56 2024 08 16 23 23 21 59.574 +10 20 52.31 .56124 1.5119 146.3 21.5 1.43 56 2024 08 17 00 23 21 59.727 +10 21 53.35 .56086 1.5117 146.4 21.5 1.49 56 2024 08 17 01 23 21 59.876 +10 22 54.43 .56047 1.5114 146.4 21.5 1.54 56 2024 08 17 02 23 22 00.022 +10 23 55.54 .56008 1.5111 146.4 21.5 1.60 56 2024 08 17 03 23 22 00.165 +10 24 56.69 .55970 1.5108 146.4 21.5 1.65 55 2024 08 17 04 23 22 00.305 +10 25 57.87 .55931 1.5105 146.5 21.5 1.71 55 2024 08 17 05 23 22 00.442 +10 26 59.08 .55893 1.5103 146.5 21.5 1.77 55 2024 08 17 06 23 22 00.575 +10 28 00.33 .55854 1.5100 146.5 21.5 1.83 55 2024 08 17 07 23 22 00.706 +10 29 01.62 .55816 1.5097 146.5 21.5 1.89 55 2024 08 17 08 23 22 00.833 +10 30 02.94 .55777 1.5094 146.6 21.5 1.95 55 2024 08 17 09 23 22 00.957 +10 31 04.29 .55739 1.5092 146.6 21.5 2.02 54 2024 08 17 10 23 22 01.077 +10 32 05.68 .55700 1.5089 146.6 21.5 2.08 54 2024 08 17 11 23 22 01.195 +10 33 07.10 .55662 1.5086 146.6 21.5 2.14 54 2024 08 17 12 23 22 01.309 +10 34 08.56 .55624 1.5083 146.7 21.5 2.21 54 2024 08 17 13 23 22 01.420 +10 35 10.06 .55585 1.5080 146.7 21.5 2.28 54 2024 08 17 14 23 22 01.528 +10 36 11.58 .55547 1.5078 146.7 21.5 2.34 54 2024 08 17 15 23 22 01.633 +10 37 13.15 .55509 1.5075 146.7 21.4 2.41 54 2024 08 17 16 23 22 01.735 +10 38 14.75 .55471 1.5072 146.8 21.4 2.48 54 2024 08 17 17 23 22 01.833 +10 39 16.38 .55432 1.5069 146.8 21.4 2.55 53 2024 08 17 18 23 22 01.929 +10 40 18.05 .55394 1.5066 146.8 21.4 2.62 53 2024 08 17 19 23 22 02.021 +10 41 19.75 .55356 1.5064 146.8 21.4 2.69 53 2024 08 17 20 23 22 02.109 +10 42 21.49 .55318 1.5061 146.8 21.4 2.77 53 2024 08 17 21 23 22 02.195 +10 43 23.26 .55280 1.5058 146.9 21.4 2.84 53 2024 08 17 22 23 22 02.277 +10 44 25.07 .55242 1.5055 146.9 21.4 2.92 53 2024 08 17 23 23 22 02.357 +10 45 26.91 .55204 1.5053 146.9 21.4 2.99 53 2024 08 18 00 23 22 02.433 +10 46 28.79 .55166 1.5050 146.9 21.4 3.07 53