"Pseudo-MPEC" for 6HF2521
Created 2026 Aug 17 21:35:05 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
Astrometry:
6HF2521*KC2026 08 16.13819 20 54 59.74 -03 31 56.9 ~8G55 19.9 GVNEOCPW94
6HF2521 KC2026 08 16.14444 20 55 00.70 -03 32 39.1 ~8G55 VNEOCPW94
6HF2521 KC2026 08 16.15066 20 55 01.55 -03 33 21.6 ~8G55 19.5 GVNEOCPW94
6HF2521 0C2026 08 16.20287620 55 11.262-03 39 47.80 ~8GDZ 19.59iUNEOCPI41
6HF2521 4C2026 08 16.21138 20 55 10.67 -03 40 09.2 ~8G5o 19.7 VqNEOCPW97
6HF2521 4C2026 08 16.21724 20 55 11.63 -03 40 47.9 ~8G5o qNEOCPW97
6HF2521 4C2026 08 16.22308 20 55 12.50 -03 41 27.0 ~8G5o qNEOCPW97
6HF2521 0C2026 08 16.25112220 55 18.649-03 45 12.39 ~8GDZ 20.85gUNEOCPI41
6HF2521 0C2026 08 16.26476220 55 20.686-03 46 44.18 ~8GDZ 19.82rUNEOCPI41
6HF2521 !C2026 08 16.27290520 55 21.967-03 47 39.08 ~8G6o 20.1 GWNEOCP673
6HF2521 !C2026 08 16.27518520 55 22.308-03 47 54.42 ~8G6o 20.0 GWNEOCP673
6HF2521 0C2026 08 16.27832220 55 22.771-03 48 15.06 ~8GDZ 19.82rUNEOCPI41
6HF2521 KC2026 08 16.57221820 56 10.406-04 20 24.86 ~8GEK 20.0 GWNEOCP474
6HF2521 KC2026 08 16.57477320 56 10.829-04 20 41.53 ~8GEK 20.3 GWNEOCP474
6HF2521 KC2026 08 16.57732420 56 11.198-04 20 59.53 ~8GEK 20.0 GWNEOCP474
6HF2521 KC2026 08 16.57987820 56 11.587-04 21 16.24 ~8GEK 20.0 GWNEOCP474
6HF2521 KC2026 08 16.58243320 56 12.010-04 21 33.66 ~8GEK 20.2 GWNEOCP474
6HF2521 0B2026 08 16.79777320 56 50.547-04 45 55.66 ~8H1Z 20.5 GWNEOCPM21
6HF2521 0B2026 08 16.81698520 56 53.492-04 48 06.38 ~8H1Z WNEOCPM21
6HF2521 1C2026 08 16.87522020 57 02.369-04 55 22.80 ~8H6K 19.5 GXNEOCP033
6HF2521 1C2026 08 16.87576020 57 02.459-04 55 27.20 ~8H6K 19.8 GXNEOCP033
6HF2521 1C2026 08 16.87630020 57 02.520-04 55 30.40 ~8H6K 20.2 GXNEOCP033
6HF2521 1C2026 08 16.87684020 57 02.588-04 55 34.29 ~8H6K 20.0 GXNEOCP033
6HF2521 0B2026 08 16.93291720 57 11.866-05 01 50.52 ~8GNo 19.4 GXNEOCPR54
6HF2521 0B2026 08 16.94684020 57 14.081-05 03 24.80 ~8GNo 19.5 GXNEOCPR54
6HF2521 KC2026 08 16.94763120 57 13.63 -05 03 29.3 ~8GN5 19.2 GXNEOCPL01
6HF2521 KC2026 08 16.95017320 57 14.04 -05 03 46.3 ~8GN5 19.8 GXNEOCPL01
6HF2521 KC2026 08 16.95271320 57 14.45 -05 04 03.6 ~8GN5 19.8 GXNEOCPL01
6HF2521 0B2026 08 16.96130820 57 16.320-05 05 02.29 ~8GNo XNEOCPR54
Station data:
(033) Karl Schwarzschild Observatory, Tautenburg (N50.980139 E11.711240)
Germany. Observer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
(474) Mount John Observatory, Lake Tekapo (S43.987385 E170.464960) New
Zealand. Observers A. C. Gilmore, P. M. Kilmartin. Measurer P. M.
Kilmartin. 1.0-m f/7.7 reflector + CCD.
(673) Table Mountain Observatory, Wrightwood (N34.381485 W117.682170)
US/California. Observers J. Chesley, J. Pittichova. Measurer W. M. Owen
Jr. 0.61-m f/16 reflector + CCD.
(I41) Palomar Mountain--ZTF (N33.357336 W116.859780) US/California.
Observers B. T. Bolin, Z. T. F. Collaboration. Measurers B. T. Bolin,
Z.-Y. Lin, F. J. Masci. 1.2-m f/2.4 Schmidt.
(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.
(M21) Schiaparelli Southern Observatory, Hakos (S23.236549 E16.361440)
Namibia. Observers A. Aletti, F. Bellini, L. Buzzi, G. Galli. Measurer L.
Buzzi. 0.36-m f/8.4 reflector + CCD.
(R54) Petit Cosquet, Bangor (N47.314413 W3.211500) France.
(W94) AMACS1, San Pedro de Atacama (S22.953074 W68.179810) Chile. Observers
A. Maury, G. Attard. Measurers A. Maury, G. Attard, D. Parrott. 0.28-m
f/2.2 Schmidt + CCD.
(W97) Atacama Desert Observatory, San Pedro de Atacama (S22.953413
W68.179760) Chile.
Orbital elements: 6HF2521
Perihelion 2026 Aug 10.331102 +/- 0.636 TT = 7:56:47.2 (JD 2461262.831102)
Epoch 2026 Aug 17.0 TT = JDT 2461269.5 Earth MOID: 0.2239 AutoNEOCP
M 1.679912969 +/- 0.17 (J2000 ecliptic)
n 0.251902644 +/- 0.00376 Peri. 168.938943 +/- 0.56
a 2.483023888 +/- 0.0247 Node 146.956806 +/- 0.012
e 0.50420537 +/- 0.00444 Incl. 24.220525 +/- 0.10
P 3.91265 H 22.17 G 0.15 U 9.0
q 1.231069892 +/- 0.00121 Q 3.734977883 +/- 0.0482
From 29 observations 2026 Aug. 16 (19.8 hr); mean residual 0".30
Residuals in arcseconds: 260816 W94 .25+ .21+ 260816 673 .13- .20+ 260816 033 .24+ .40- 260816 W94 .58+ .01+ 260816 I41 .08+ .11+ 260816 033 .12- .04+ 260816 W94 .66- .68- 260816 474 .03- .14- 260816 033 .37- .20- 260816 I41 .09+ .21- 260816 474 .34+ .39+ 260816 R54 .15- .29+ 260816 W97 .75- .27- 260816 474 .08- .45- 260816 R54 .40+ .05- 260816 W97 .38+ .40+ 260816 474 .22- .02+ 260816 L01 .32- .05- 260816 W97 .18+ .53+ 260816 474 .14+ .20- 260816 L01 .11- .09+ 260816 I41 .25+ .19- 260816 M21 .38+ .50+ 260816 L01 .10+ .09- 260816 I41 .30- .22- 260816 M21 .32- .48- 260816 R54 .07+ .06+ 260816 673 .04- .20+ 260816 033 .17+ .36+ Ephemerides (geocentric): Date (UTC) HH RA Dec delta r elong mag " sig PA ---- -------- ------------ ------------ ------ ------ ----- --- -------- 2026 08 17 22 20 59 57.113 -06 51 58.73 .22661 1.2339 166.6 20.1 1.83 161 2026 08 17 23 21 00 04.189 -06 56 39.92 .22662 1.2339 166.6 20.1 1.94 161 2026 08 18 00 21 00 11.270 -07 01 21.10 .22664 1.2340 166.7 20.1 2.06 161 2026 08 18 01 21 00 18.355 -07 06 02.26 .22665 1.2340 166.7 20.1 2.17 161 2026 08 18 02 21 00 25.444 -07 10 43.41 .22666 1.2340 166.7 20.1 2.29 161 2026 08 18 03 21 00 32.538 -07 15 24.53 .22668 1.2341 166.8 20.1 2.42 161 2026 08 18 04 21 00 39.637 -07 20 05.63 .22669 1.2341 166.8 20.1 2.55 161 2026 08 18 05 21 00 46.740 -07 24 46.70 .22671 1.2341 166.8 20.1 2.68 161 2026 08 18 06 21 00 53.847 -07 29 27.75 .22673 1.2341 166.9 20.1 2.81 161 2026 08 18 07 21 01 00.959 -07 34 08.77 .22674 1.2342 166.9 20.1 2.95 161 2026 08 18 08 21 01 08.075 -07 38 49.76 .22676 1.2342 166.9 20.1 3.09 161 2026 08 18 09 21 01 15.196 -07 43 30.71 .22678 1.2342 167.0 20.1 3.23 161 2026 08 18 10 21 01 22.321 -07 48 11.63 .22680 1.2343 167.0 20.1 3.38 161 2026 08 18 11 21 01 29.450 -07 52 52.52 .22682 1.2343 167.0 20.1 3.53 161 2026 08 18 12 21 01 36.584 -07 57 33.36 .22684 1.2343 167.1 20.1 3.68 161 2026 08 18 13 21 01 43.722 -08 02 14.17 .22686 1.2344 167.1 20.1 3.84 161 2026 08 18 14 21 01 50.865 -08 06 54.93 .22688 1.2344 167.1 20.1 4.00 161 2026 08 18 15 21 01 58.012 -08 11 35.65 .22690 1.2344 167.1 20.1 4.16 161 2026 08 18 16 21 02 05.163 -08 16 16.32 .22693 1.2345 167.2 20.1 4.33 161 2026 08 18 17 21 02 12.319 -08 20 56.94 .22695 1.2345 167.2 20.1 4.50 161 2026 08 18 18 21 02 19.479 -08 25 37.52 .22697 1.2346 167.2 20.1 4.67 161 2026 08 18 19 21 02 26.643 -08 30 18.04 .22700 1.2346 167.2 20.1 4.85 161 2026 08 18 20 21 02 33.811 -08 34 58.50 .22702 1.2346 167.3 20.1 5.03 161 2026 08 18 21 21 02 40.984 -08 39 38.91 .22705 1.2347 167.3 20.1 5.21 161 2026 08 18 22 21 02 48.161 -08 44 19.26 .22708 1.2347 167.3 20.1 5.39 161 2026 08 18 23 21 02 55.343 -08 48 59.55 .22710 1.2347 167.3 20.1 5.58 161 2026 08 19 00 21 03 02.528 -08 53 39.78 .22713 1.2348 167.4 20.1 5.77 161 2026 08 19 01 21 03 09.718 -08 58 19.95 .22716 1.2348 167.4 20.1 5.97 161 2026 08 19 02 21 03 16.912 -09 03 00.04 .22719 1.2348 167.4 20.1 6.16 161 2026 08 19 03 21 03 24.111 -09 07 40.07 .22722 1.2349 167.4 20.1 6.37 161 2026 08 19 04 21 03 31.313 -09 12 20.03 .22725 1.2349 167.5 20.1 6.57 161 2026 08 19 05 21 03 38.520 -09 16 59.92 .22728 1.2349 167.5 20.1 6.78 161 2026 08 19 06 21 03 45.731 -09 21 39.74 .22731 1.2350 167.5 20.1 6.99 161 2026 08 19 07 21 03 52.946 -09 26 19.47 .22735 1.2350 167.5 20.1 7.20 161 2026 08 19 08 21 04 00.166 -09 30 59.14 .22738 1.2350 167.5 20.1 7.42 161 2026 08 19 09 21 04 07.389 -09 35 38.72 .22741 1.2351 167.5 20.1 7.63 161 2026 08 19 10 21 04 14.617 -09 40 18.22 .22745 1.2351 167.6 20.1 7.86 161 2026 08 19 11 21 04 21.849 -09 44 57.63 .22748 1.2352 167.6 20.1 8.08 161 2026 08 19 12 21 04 29.085 -09 49 36.96 .22752 1.2352 167.6 20.1 8.31 161 2026 08 19 13 21 04 36.325 -09 54 16.20 .22755 1.2352 167.6 20.1 8.54 161 2026 08 19 14 21 04 43.569 -09 58 55.36 .22759 1.2353 167.6 20.1 8.78 161 2026 08 19 15 21 04 50.818 -10 03 34.42 .22763 1.2353 167.6 20.1 9.02 161 2026 08 19 16 21 04 58.070 -10 08 13.39 .22767 1.2353 167.6 20.1 9.26 161 2026 08 19 17 21 05 05.327 -10 12 52.26 .22771 1.2354 167.7 20.1 9.50 161 2026 08 19 18 21 05 12.587 -10 17 31.04 .22775 1.2354 167.7 20.1 9.75 161 2026 08 19 19 21 05 19.852 -10 22 09.72 .22779 1.2355 167.7 20.1 10.0 161 2026 08 19 20 21 05 27.121 -10 26 48.29 .22783 1.2355 167.7 20.1 10.3 161 2026 08 19 21 21 05 34.393 -10 31 26.77 .22787 1.2355 167.7 20.1 10.5 160