"Pseudo-MPEC" for 6HL3B21
Created 2026 Aug 23 22:35:05 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
Astrometry:
6HL3B21*KC2026 08 22.18253 21 47 37.24 -23 48 20.6 ~8M5K VNEOCPW94
6HL3B21 KC2026 08 22.18871 21 47 35.76 -23 46 31.4 ~8M5K 18.5 GVNEOCPW94
6HL3B21 KC2026 08 22.19494 21 47 34.16 -23 44 41.9 ~8M5K 18.4 GVNEOCPW94
6HL3B21 4C2026 08 22.23906 21 47 23.45 -23 31 44.5 ~8M6Z 19.7 VqNEOCPW97
6HL3B21 KC2026 08 22.24169821 47 25.932-23 32 29.58 ~8M6Z 19.5 VZNEOCPH36
6HL3B21 4C2026 08 22.24495 21 47 22.07 -23 30 01.0 ~8M6Z 19.8 VqNEOCPW97
6HL3B21 4C2026 08 22.25083 21 47 20.66 -23 28 16.9 ~8M6Z 18.6 VqNEOCPW97
6HL3B21 KC2026 08 22.25572021 47 22.651-23 28 24.56 ~8M6Z 19.4 VZNEOCPH36
6HL3B21 KC2026 08 22.27620621 47 17.796-23 22 26.83 ~8M7K 19.7 VZNEOCPH36
6HL3B21 KC2026 08 22.28524921 47 15.670-23 19 48.47 ~8M7K 19.7 VZNEOCPH36
6HL3B21 KC2026 08 22.48074 21 46 41.95 -22 21 47.8 ~8N8K 19.2 GVNEOCPE23
6HL3B21 KC2026 08 22.49016 21 46 39.84 -22 19 08.3 ~8N8K 19.1 GVNEOCPE23
6HL3B21 KC2026 08 22.49952 21 46 37.75 -22 16 30.4 ~8N8K 19.7 GVNEOCPE23
6HL3B21 1B2026 08 22.81757521 45 40.987-20 48 16.20 ~8MK5 19.0 VZNEOCPM49
6HL3B21 1B2026 08 22.82282221 45 39.924-20 46 50.95 ~8MK5 18.7 VZNEOCPM49
6HL3B21 KC2026 08 22.86309 21 45 31.15 -20 37 32.7 ~8N55 VNEOCP587
6HL3B21 KC2026 08 22.86969621 45 29.79 -20 35 45.7 ~8N55 19.4 GVNEOCP587
6HL3B21 0B2026 08 22.88271621 45 27.053-20 32 10.43 ~8NFo XNEOCPL34
6HL3B21 0B2026 08 22.94074421 45 15.255-20 16 39.15 ~8N0Z WNEOCP204
6HL3B21 KC2026 08 22.94635521 45 14.00 -20 15 08.2 ~8MNZ VNEOCP104
6HL3B21 0B2026 08 22.95353721 45 12.638-20 13 13.18 ~8N0Z 19.2 GWNEOCP204
6HL3B21 KC2026 08 22.95958321 45 11.22 -20 11 34.5 ~8MNZ 19.3 GVNEOCP104
6HL3B21 0B2026 08 22.97386521 45 07.877-20 07 39.07 ~8NFo 19.04GXNEOCPL34
6HL3B21 0B2026 08 22.99137721 45 04.320-20 02 57.70 ~8NFo 18.93GXNEOCPL34
6HL3B21 0C2026 08 23.01863321 45 00.295-19 55 52.00 ~8N15 19.7 GWNEOCPJ95
6HL3B21 0C2026 08 23.02398721 44 59.287-19 54 25.63 ~8N15x20.2 GWNEOCPJ95
6HL3B21 |C2026 08 23.11414021 44 47.230-19 28 43.30 ~8N3Z 19.5 GVNEOCP807
6HL3B21 |C2026 08 23.11821021 44 46.410-19 27 39.70 ~8N3Z 19.6 GVNEOCP807
6HL3B21 |C2026 08 23.12227021 44 45.570-19 26 36.10 ~8N3Z 19.8 GVNEOCP807
6HL3B21 4C2026 08 23.22265 21 44 24.64 -19 00 34.3 ~8N75 19.3 VqNEOCPW97
6HL3B21 4C2026 08 23.22861 21 44 23.46 -18 59 01.8 ~8N75 19.0 VqNEOCPW97
6HL3B21 4C2026 08 23.23455 21 44 22.27 -18 57 28.3 ~8N75 18.7 VqNEOCPW97
6HL3B21 KB2026 08 23.32567121 44 08.254-18 35 21.55 ~8NH5 19.33GWNEOCPV21
6HL3B21 KB2026 08 23.33436321 44 06.528-18 33 07.52 ~8NH5 19.46GWNEOCPV21
6HL3B21 KB2026 08 23.35153721 44 04.493-18 28 53.08 ~8NCZ 20.3 GVNEOCPU52
6HL3B21 KB2026 08 23.35452521 44 02.561-18 27 56.84 ~8NH5 19.32GWNEOCPV21
6HL3B21 KB2026 08 23.36557921 44 01.826-18 25 18.59 ~8NCZ 18.8 GVNEOCPU52
6HL3B21 KB2026 08 23.36575221 44 00.379-18 25 04.19 ~8NH5 19.19GWNEOCPV21
6HL3B21 KB2026 08 23.38318321 43 57.038-18 20 35.99 ~8NH5 19.42GWNEOCPV21
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. 0.84-m f/3.5 reflector + CCD.
(587) Sormano (N45.882946 E9.229180) Italy. Observers E. Colzani, E. Valli.
Measurer P. Sicoli. 0.5-m f/6.8 reflector + CCD.
(807) Cerro Tololo Observatory, La Serena (S30.169133 W70.805900) Chile.
Observer R. Holmes. 0.61-m f/6.5 astrograph + CCD.
(E23) Arcadia (S33.621197 E151.071190) Australia/NSW. Observer A. Hidas.
0.35-m f/1.9 reflector + CCD.
(H36) Sandlot Observatory, Scranton (N38.797718 W95.706550) US/Kansas.
Observer G. Hug. 0.56-m reflector + CCD.
(J95) Great Shefford (N51.474969 W1.447003) UK/England. Observer P.
Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain + CCD.
(L34) Galhassin Robotic Telescope, Isnello (N37.939358 E14.020610) Italy.
Observer A. Nastasi. 0.40-m reflector + CCD.
(M49) IAS Remote Observatory, Hakos (S23.236549 E16.361720) Namibia.
Observers D. Husar, M. Junius. Measurer D. Husar. 0.25-m f/4.6 reflector +
CCD.
(U52) Shasta Valley Observatory, Grenada (N41.579164 W122.549000)
US/California. Observer J. E. Rogers. Measurers J. E. Rogers, D. Parrott.
0.30-m Helin Telescope + CCD.
(V21) Cewanee Observatory at DSNM (N31.946619 W108.897690) US/New Mexico.
Observer D. T. Durig. 0.4-m f/8 Ritchey-Chrétien + 4656x3520 CCD.
(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: 6HL3B21
Perihelion 2026 Jul 7.971862 +/- 0.0313 TT = 23:19:28.8 (JD 2461229.471862)
Epoch 2026 Aug 23.0 TT = JDT 2461275.5 Earth MOID: 0.0703 AutoNEOCP
M 17.310189565 +/- 0.06 (J2000 ecliptic)
n 0.376078424 +/- 0.00122 Peri. 304.114341 +/- 0.030
a 1.900861334 +/- 0.00414 Node 330.279218 +/- 0.0010
e 0.50235784 +/- 0.00108 Incl. 19.886374 +/- 0.028
P 2.621/957.229d H 23.88 G 0.15 U 8.2
q 0.945948726 +/- 0.000149 Q 2.855773942 +/- 0.00828
38 of 39 observations 2026 Aug. 22-23 (28.8 hr); mean residual 0".33
Residuals in arcseconds: 260822 W94 .12- .01- 260822 M49 .11- .03- 260823 807 .13- .13+ 260822 W94 .43+ .19+ 260822 M49 .35+ .12+ 260823 807 .01+ .22- 260822 W94 .53- .18- 260822 587 .25+ .27+ 260823 807 .15- .40- 260822 W97 .27- .21- 260822 587 .01+ .34+ 260823 W97 .69- .48+ 260822 H36 .45- .46+ 260822 L34 .35+ .71- 260823 W97 .22- .18- 260822 W97 .19+ .41- 260822 204 .08- .15- 260823 W97 .01- .49+ 260822 W97 .14+ .19+ 260822 104 .77+ .80- 260823 V21 .45+ .14- 260822 H36 .04+ .18+ 260822 204 .09+ .15- 260823 V21 .34+ .16- 260822 H36 .31- .19- 260822 104 .06+ .07- 260823 U52 .78- .57+ 260822 H36 .36- .20+ 260822 L34 .61- .32+ 260823 V21 .17+ .14- 260822 E23 .22+ .10- 260822 L34 .46+ .06+ 260823 U52 .15- .54- 260822 E23 .25+ .01- 260823 J95 .06- .18+ 260823 V21 .15+ .31- 260822 E23 .46+ .43- 260823 J95( .76+ .91+) 260823 V21 .26+ .16- Ephemerides (geocentric): Date (UTC) HH RA Dec delta r elong mag " sig PA ---- -------- ------------ ------------ ------ ------ ----- --- -------- 2026 08 23 23 21 42 32.117 -15 58 11.66 .09527 1.1055 171.8 19.5 .043 64 2026 08 24 00 21 42 26.075 -15 48 21.05 .09552 1.1057 171.9 19.5 .043 73 2026 08 24 01 21 42 20.077 -15 38 33.53 .09577 1.1060 171.9 19.5 .044 83 2026 08 24 02 21 42 14.123 -15 28 49.10 .09603 1.1062 171.9 19.5 .046 92 2026 08 24 03 21 42 08.212 -15 19 07.73 .09629 1.1065 171.9 19.6 .049 101 2026 08 24 04 21 42 02.343 -15 09 29.41 .09654 1.1067 172.0 19.6 .053 109 2026 08 24 05 21 41 56.517 -14 59 54.14 .09680 1.1070 172.0 19.6 .058 115 2026 08 24 06 21 41 50.733 -14 50 21.90 .09706 1.1072 172.0 19.6 .064 121 2026 08 24 07 21 41 44.991 -14 40 52.67 .09732 1.1075 172.0 19.6 .071 125 2026 08 24 08 21 41 39.289 -14 31 26.44 .09758 1.1077 172.0 19.6 .078 129 2026 08 24 09 21 41 33.628 -14 22 03.20 .09784 1.1080 172.0 19.6 .086 133 2026 08 24 10 21 41 28.008 -14 12 42.93 .09810 1.1082 172.0 19.6 .094 136 2026 08 24 11 21 41 22.428 -14 03 25.62 .09836 1.1085 172.0 19.6 .103 138 2026 08 24 12 21 41 16.887 -13 54 11.26 .09862 1.1087 172.0 19.6 .111 140 2026 08 24 13 21 41 11.386 -13 44 59.83 .09889 1.1090 172.0 19.6 .120 142 2026 08 24 14 21 41 05.924 -13 35 51.32 .09915 1.1092 172.0 19.6 .130 144 2026 08 24 15 21 41 00.500 -13 26 45.72 .09942 1.1095 171.9 19.6 .139 145 2026 08 24 16 21 40 55.115 -13 17 43.00 .09968 1.1097 171.9 19.6 .149 146 2026 08 24 17 21 40 49.767 -13 08 43.17 .09995 1.1100 171.9 19.6 .159 148 2026 08 24 18 21 40 44.457 -12 59 46.20 .10022 1.1102 171.9 19.7 .170 149 2026 08 24 19 21 40 39.184 -12 50 52.08 .10049 1.1105 171.8 19.7 .180 150 2026 08 24 20 21 40 33.948 -12 42 00.79 .10076 1.1107 171.8 19.7 .191 150 2026 08 24 21 21 40 28.749 -12 33 12.33 .10103 1.1110 171.8 19.7 .202 151 2026 08 24 22 21 40 23.586 -12 24 26.67 .10130 1.1112 171.7 19.7 .213 152 2026 08 24 23 21 40 18.458 -12 15 43.81 .10157 1.1115 171.7 19.7 .224 153 2026 08 25 00 21 40 13.367 -12 07 03.73 .10184 1.1117 171.7 19.7 .236 153 2026 08 25 01 21 40 08.310 -11 58 26.42 .10211 1.1120 171.6 19.7 .247 154 2026 08 25 02 21 40 03.289 -11 49 51.86 .10239 1.1122 171.6 19.7 .259 154 2026 08 25 03 21 39 58.302 -11 41 20.04 .10266 1.1125 171.5 19.7 .271 155 2026 08 25 04 21 39 53.350 -11 32 50.94 .10294 1.1127 171.5 19.7 .283 155 2026 08 25 05 21 39 48.431 -11 24 24.55 .10321 1.1130 171.4 19.7 .296 156 2026 08 25 06 21 39 43.547 -11 16 00.86 .10349 1.1132 171.4 19.7 .308 156 2026 08 25 07 21 39 38.696 -11 07 39.85 .10377 1.1135 171.3 19.8 .320 156 2026 08 25 08 21 39 33.878 -10 59 21.50 .10404 1.1137 171.3 19.8 .333 157 2026 08 25 09 21 39 29.093 -10 51 05.82 .10432 1.1140 171.2 19.8 .346 157 2026 08 25 10 21 39 24.341 -10 42 52.77 .10460 1.1142 171.1 19.8 .359 157 2026 08 25 11 21 39 19.621 -10 34 42.35 .10488 1.1145 171.1 19.8 .372 158 2026 08 25 12 21 39 14.933 -10 26 34.54 .10516 1.1148 171.0 19.8 .385 158 2026 08 25 13 21 39 10.277 -10 18 29.33 .10545 1.1150 171.0 19.8 .399 158 2026 08 25 14 21 39 05.652 -10 10 26.71 .10573 1.1153 170.9 19.8 .412 158 2026 08 25 15 21 39 01.059 -10 02 26.66 .10601 1.1155 170.8 19.8 .426 159 2026 08 25 16 21 38 56.497 -09 54 29.16 .10629 1.1158 170.8 19.8 .439 159 2026 08 25 17 21 38 51.965 -09 46 34.21 .10658 1.1160 170.7 19.8 .453 159 2026 08 25 18 21 38 47.464 -09 38 41.78 .10686 1.1163 170.6 19.9 .467 159 2026 08 25 19 21 38 42.993 -09 30 51.87 .10715 1.1165 170.5 19.9 .481 159 2026 08 25 20 21 38 38.553 -09 23 04.47 .10744 1.1168 170.5 19.9 .495 160 2026 08 25 21 21 38 34.142 -09 15 19.55 .10772 1.1170 170.4 19.9 .509 160 2026 08 25 22 21 38 29.760 -09 07 37.11 .10801 1.1173 170.3 19.9 .524 160